* [LTP] [RFC PATCH] rm unused controllers/io-throttle tests
@ 2021-06-21 14:30 Richard Palethorpe
2021-06-23 15:40 ` Petr Vorel
0 siblings, 1 reply; 5+ messages in thread
From: Richard Palethorpe @ 2021-06-21 14:30 UTC (permalink / raw)
To: ltp
These files do not appear in any runtest file nor are they called from
anywhere else.
Signed-off-by: Richard Palethorpe <rpalethorpe@suse.com>
---
.../kernel/controllers/io-throttle/.gitignore | 1 -
.../kernel/controllers/io-throttle/Makefile | 32 --
.../kernel/controllers/io-throttle/README | 56 ----
.../io-throttle/io_throttle_testplan.txt | 36 ---
.../kernel/controllers/io-throttle/iobw.c | 281 ------------------
.../controllers/io-throttle/myfunctions-io.sh | 61 ----
.../io-throttle/run_io_throttle_test.sh | 123 --------
7 files changed, 590 deletions(-)
delete mode 100644 testcases/kernel/controllers/io-throttle/.gitignore
delete mode 100644 testcases/kernel/controllers/io-throttle/Makefile
delete mode 100644 testcases/kernel/controllers/io-throttle/README
delete mode 100644 testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt
delete mode 100644 testcases/kernel/controllers/io-throttle/iobw.c
delete mode 100755 testcases/kernel/controllers/io-throttle/myfunctions-io.sh
delete mode 100755 testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh
diff --git a/testcases/kernel/controllers/io-throttle/.gitignore b/testcases/kernel/controllers/io-throttle/.gitignore
deleted file mode 100644
index 6836f7b74..000000000
--- a/testcases/kernel/controllers/io-throttle/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/iobw
diff --git a/testcases/kernel/controllers/io-throttle/Makefile b/testcases/kernel/controllers/io-throttle/Makefile
deleted file mode 100644
index ceeba7362..000000000
--- a/testcases/kernel/controllers/io-throttle/Makefile
+++ /dev/null
@@ -1,32 +0,0 @@
-#
-# kernel/controllers/io-throttle testcase suite Makefile.
-#
-# Copyright (C) 2009, Cisco Systems Inc.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-#
-# Ngie Cooper, July 2009
-#
-
-top_srcdir ?= ../../../..
-
-include $(top_srcdir)/include/mk/testcases.mk
-include $(abs_srcdir)/../Makefile.inc
-
-INSTALL_TARGETS := run_io_throttle_test.sh myfunctions-io.sh
-
-LDLIBS += -lm -lcontrollers
-
-include $(top_srcdir)/include/mk/generic_leaf_target.mk
diff --git a/testcases/kernel/controllers/io-throttle/README b/testcases/kernel/controllers/io-throttle/README
deleted file mode 100644
index e5980fb6c..000000000
--- a/testcases/kernel/controllers/io-throttle/README
+++ /dev/null
@@ -1,56 +0,0 @@
-TEST SUITE:
-
-The directory io-throttle contains the tests related to block device I/O
-bandwdith controller.
-
-More testcases are expected to be added in future.
-
-TESTS AIM:
-
-The aim of the tests is to check the block device I/O throttling functionality
-for cgroups.
-
-FILES DESCRIPTION:
-
-iobw.c
----------------
-Simple benchmark to generate parallel streams of direct I/O (O_DIRECT). This
-benchmark fork()s one task per stream. Each task creates a separate file in the
-current working directory, fills it with data using O_DIRECT writes and re-read
-the whole file always in O_DIRECT mode. Different timestamps are used to
-evaluate per-task I/O rate and total I/O rate (seen by the parent).
-
-myfunctions.sh
-----------
-This file contains the functions which are common for the io-throttle tests.
-For ex. the setup and cleanup functions which do the setup for running the
-test and do the cleanup once the test finishes. The setup() function creates
-/dev/blockioctl directory and mounts cgroup filesystem on it with memory
-controller. It then creates a number(n) of groups in /dev/blockioctl. The
-cleanup function does a complete cleanup of the system.
-
-Most of the error scenarios have been taken care of for a sane cleanup of the
-system. However if cleanup fails in any case, just manually execute the
-commands written in cleanup function in myfunctions.sh.
-One of the most common causes of failed cleanup is that you have done cd into
-any of the groups in controller dir tree.
-
-run_io_throttle_test.sh
-------------------
-This script creates different scenarios for I/O bandwidth controller testing
-and fires (n) tasks in different groups to write and read different I/O streams
-etc. It waits for the return status from tasks and reports test pass/fail
-accordingly.
-
-Makefile
---------
-The usual makefile for this directory
-
-PASS/FAIL CRITERION:
-==================
-The test cases are intelligent enough in deciding the pass or failure of a
-test.
-
-README:
---------
-This file.
diff --git a/testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt b/testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt
deleted file mode 100644
index fa5b85b42..000000000
--- a/testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-The I/O bandwidth controller testplan includes a complete set of testcases to
-verify the effectiveness of the block device I/O throttling capabilities for
-cgroups.
-
-I/O bandwidth limitations are imposed by the testcase script and verified doing
-I/O activity on a limited block device. Tests are supposed to be passed if the
-I/O rates of all the different workloads always respect the I/O limitations.
-
-TESTCASE DESCRIPTION:
-====================
-First of all we evaluate the physical I/O bandwidth (physical-io-bw) of the
-block device where the current working directory resides.
-
-Based on the physical I/O bandwidth three cgroups are created: cgroup-1,
-cgroup-2, cgroup-3. Cgroups use respectively the following I/O bandwidth
-limitations:
-- cgroup-1: physical-io-bw / 2
-- cgroup-2: physical-io-bw / 4
-- cgroup-3: physical-io-bw / 8
-
-Each test is considered passed only if the I/O limitations above are respected.
-
-Currently the following different scenarios are tested:
-- 1 single stream per cgroup using leaky-bucket I/O throttling
-- 1 single stream per cgroup using token-bucket I/O throttling
-- 2 parallel streams per cgroup using leaky-bucket I/O throttling
-- 2 parallel streams per cgroup using token-bucket I/O throttling
-- 4 parallel streams per cgroup using leaky-bucket I/O throttling
-- 4 parallel streams per cgroup using token-bucket I/O throttling
-
-For any other information please refer to
-Documentation/controllers/io-throttle.txt in kernel documentation.
-
-Questions?
-----------
-Send email to: righi.andrea@gmail.com
diff --git a/testcases/kernel/controllers/io-throttle/iobw.c b/testcases/kernel/controllers/io-throttle/iobw.c
deleted file mode 100644
index e4d9c9bb6..000000000
--- a/testcases/kernel/controllers/io-throttle/iobw.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/*
- * iobw.c - simple I/O bandwidth benchmark
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
- *
- * Copyright (C) 2008 Andrea Righi <righi.andrea@gmail.com>
- */
-
-#define _GNU_SOURCE
-#define __USE_GNU
-
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <string.h>
-#include <unistd.h>
-#include <limits.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/wait.h>
-
-#ifndef PAGE_SIZE
-#define PAGE_SIZE sysconf(_SC_PAGE_SIZE)
-#endif
-
-#define align(x,a) __align_mask(x,(typeof(x))(a)-1)
-#define __align_mask(x,mask) (((x)+(mask))&~(mask))
-#define kb(x) ((x) >> 10)
-
-const char usage[] = "Usage: iobw [-direct] threads chunk_size data_size\n";
-const char child_fmt[] = "(%s) task %3d: time %4lu.%03lu bw %7lu KiB/s (%s)\n";
-const char parent_fmt[] =
- "(%s) parent %d: time %4lu.%03lu bw %7lu KiB/s (%s)\n";
-
-static int directio = 0;
-static size_t data_size = 0;
-static size_t chunk_size = 0;
-
-typedef enum {
- OP_WRITE,
- OP_READ,
- NUM_IOPS,
-} iops_t;
-
-static const char *iops[] = {
- "WRITE",
- "READ ",
- "TOTAL",
-};
-
-static int threads;
-pid_t *children;
-
-char *mygroup;
-
-static void print_results(int id, iops_t op, size_t bytes, struct timeval *diff)
-{
- fprintf(stdout, id ? child_fmt : parent_fmt,
- mygroup, id, diff->tv_sec, diff->tv_usec / 1000,
- (bytes / (diff->tv_sec * 1000000L + diff->tv_usec))
- * 1000000L / 1024, iops[op]);
-}
-
-static void thread(int id)
-{
- struct timeval start, stop, diff;
- int fd, i, ret;
- size_t n;
- void *buf;
- int flags = O_CREAT | O_RDWR | O_LARGEFILE;
- char filename[32];
-
- ret = posix_memalign(&buf, PAGE_SIZE, chunk_size);
- if (ret < 0) {
- fprintf(stderr,
- "ERROR: task %d couldn't allocate %zu bytes (%s)\n",
- id, chunk_size, strerror(errno));
- exit(1);
- }
- memset(buf, 0xaa, chunk_size);
-
- snprintf(filename, sizeof(filename), "%s-%d-iobw.tmp", mygroup, id);
- if (directio)
- flags |= O_DIRECT;
- fd = open(filename, flags, 0600);
- if (fd < 0) {
- fprintf(stderr, "ERROR: task %d couldn't open %s (%s)\n",
- id, filename, strerror(errno));
- free(buf);
- exit(1);
- }
-
- /* Write */
- lseek(fd, 0, SEEK_SET);
- n = 0;
- gettimeofday(&start, NULL);
- while (n < data_size) {
- i = write(fd, buf, chunk_size);
- if (i < 0) {
- fprintf(stderr, "ERROR: task %d writing to %s (%s)\n",
- id, filename, strerror(errno));
- ret = 1;
- goto out;
- }
- n += i;
- }
- gettimeofday(&stop, NULL);
- timersub(&stop, &start, &diff);
- print_results(id + 1, OP_WRITE, data_size, &diff);
-
- /* Read */
- lseek(fd, 0, SEEK_SET);
- n = 0;
- gettimeofday(&start, NULL);
- while (n < data_size) {
- i = read(fd, buf, chunk_size);
- if (i < 0) {
- fprintf(stderr, "ERROR: task %d reading to %s (%s)\n",
- id, filename, strerror(errno));
- ret = 1;
- goto out;
- }
- n += i;
- }
- gettimeofday(&stop, NULL);
- timersub(&stop, &start, &diff);
- print_results(id + 1, OP_READ, data_size, &diff);
-out:
- close(fd);
- unlink(filename);
- free(buf);
- exit(ret);
-}
-
-static void spawn(int id)
-{
- pid_t pid;
-
- pid = fork();
- switch (pid) {
- case -1:
- fprintf(stderr, "ERROR: couldn't fork thread %d\n", id);
- exit(1);
- case 0:
- thread(id);
- default:
- children[id] = pid;
- }
-}
-
-void signal_handler(int sig)
-{
- char filename[32];
- int i;
-
- for (i = 0; i < threads; i++)
- if (children[i])
- kill(children[i], SIGKILL);
-
- for (i = 0; i < threads; i++) {
- struct stat mystat;
-
- snprintf(filename, sizeof(filename), "%s-%d-iobw.tmp",
- mygroup, i);
- if (stat(filename, &mystat) < 0)
- continue;
- unlink(filename);
- }
-
- fprintf(stdout, "received signal %d, exiting\n", sig);
- exit(0);
-}
-
-unsigned long long memparse(char *ptr, char **retptr)
-{
- unsigned long long ret = strtoull(ptr, retptr, 0);
-
- switch (**retptr) {
- case 'G':
- case 'g':
- ret <<= 10;
- case 'M':
- case 'm':
- ret <<= 10;
- case 'K':
- case 'k':
- ret <<= 10;
- (*retptr)++;
- default:
- break;
- }
- return ret;
-}
-
-int main(int argc, char *argv[])
-{
- struct timeval start, stop, diff;
- char *end;
- int i;
-
- if (argv[1] && strcmp(argv[1], "-direct") == 0) {
- directio = 1;
- argc--;
- argv++;
- }
- if (argc != 4) {
- fprintf(stderr, usage);
- exit(1);
- }
- if ((threads = atoi(argv[1])) == 0) {
- fprintf(stderr, usage);
- exit(1);
- }
- chunk_size = align(memparse(argv[2], &end), PAGE_SIZE);
- if (*end) {
- fprintf(stderr, usage);
- exit(1);
- }
- data_size = align(memparse(argv[3], &end), PAGE_SIZE);
- if (*end) {
- fprintf(stderr, usage);
- exit(1);
- }
-
- /* retrieve group name */
- mygroup = getenv("MYGROUP");
- if (!mygroup) {
- fprintf(stderr,
- "ERROR: undefined environment variable MYGROUP\n");
- exit(1);
- }
-
- children = malloc(sizeof(pid_t) * threads);
- if (!children) {
- fprintf(stderr, "ERROR: not enough memory\n");
- exit(1);
- }
-
- /* handle user interrupt */
- signal(SIGINT, signal_handler);
- /* handle kill from shell */
- signal(SIGTERM, signal_handler);
-
- fprintf(stdout, "chunk_size %zuKiB, data_size %zuKiB\n",
- kb(chunk_size), kb(data_size));
- fflush(stdout);
-
- gettimeofday(&start, NULL);
- for (i = 0; i < threads; i++)
- spawn(i);
- for (i = 0; i < threads; i++) {
- int status;
- wait(&status);
- if (!WIFEXITED(status))
- exit(1);
- }
- gettimeofday(&stop, NULL);
-
- timersub(&stop, &start, &diff);
- print_results(0, NUM_IOPS, data_size * threads * NUM_IOPS, &diff);
- fflush(stdout);
- free(children);
-
- exit(0);
-}
diff --git a/testcases/kernel/controllers/io-throttle/myfunctions-io.sh b/testcases/kernel/controllers/io-throttle/myfunctions-io.sh
deleted file mode 100755
index bf4bb2b9a..000000000
--- a/testcases/kernel/controllers/io-throttle/myfunctions-io.sh
+++ /dev/null
@@ -1,61 +0,0 @@
-#!/bin/sh
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public
-# License as published by the Free Software Foundation; either
-# version 2 of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public
-# License along with this program; if not, write to the
-# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-# Boston, MA 021110-1307, USA.
-#
-# Copyright (C) 2008 Andrea Righi <righi.andrea@gmail.com>
-#
-# usage . myfunctions.sh
-
-setup()
-{
- # create testcase cgroups
- if [ -e /dev/blockioctl ]; then
- echo "WARN: /dev/blockioctl already exist! overwriting."
- cleanup
- fi
- mkdir /dev/blockioctl
- mount -t cgroup -o blockio cgroup /dev/blockioctl
- if [ $? -ne 0 ]; then
- echo "ERROR: could not mount cgroup filesystem " \
- " on /dev/blockioctl. Exiting test."
- cleanup
- exit 1
- fi
- for i in `seq 1 3`; do
- if [ -e /dev/blockioctl/cgroup-$i ]; then
- rmdir /dev/blockioctl/cgroup-$i
- echo "WARN: earlier cgroup-$i found and removed"
- fi
- mkdir /dev/blockioctl/cgroup-$i
- if [ $? -ne 0 ]; then
- echo "ERROR: could not create cgroup-$i" \
- "Check your permissions. Exiting test."
- cleanup
- exit 1
- fi
- done
-}
-
-cleanup()
-{
- echo "Cleanup called"
- for i in `seq 1 3`; do
- rmdir /dev/blockioctl/cgroup-$i
- rm -f /tmp/cgroup-$i.out
- done
- umount /dev/blockioctl
- rmdir /dev/blockioctl
-}
diff --git a/testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh b/testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh
deleted file mode 100755
index c855fd052..000000000
--- a/testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh
+++ /dev/null
@@ -1,123 +0,0 @@
-#!/bin/bash
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public
-# License as published by the Free Software Foundation; either
-# version 2 of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public
-# License along with this program; if not, write to the
-# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-# Boston, MA 021110-1307, USA.
-#
-# Copyright (C) 2008 Andrea Righi <righi.andrea@gmail.com>
-#
-# Usage: ./run_io_throttle_test.sh
-# Description: test block device I/O bandwidth controller functionalities
-
-. ./myfunctions-io.sh
-
-trap cleanup SIGINT
-
-BUFSIZE=16m
-DATASIZE=64m
-
-setup
-
-# get the device name of the entire mounted block device
-dev=`df -P . | sed '1d' | cut -d' ' -f1 | sed 's/[p]*[0-9]*$//'`
-
-# evaluate device bandwidth
-export MYGROUP=
-phys_bw=`./iobw -direct 1 $BUFSIZE $DATASIZE | grep TOTAL | awk '{print $7}'`
-if [ $? -ne 0 ]; then
- echo "ERROR: could not evaluate i/o bandwidth of $dev. Exiting test."
- cleanup
- exit 1
-fi
-echo ">> physical i/o bandwidth limit is: $phys_bw KiB/s"
-# show cgroup i/o bandwidth limits
-for i in `seq 1 3`; do
- MYGROUP=cgroup-$i
- echo "($MYGROUP) max i/o bw: " \
- "$(($phys_bw / `echo 2^$i | bc`)) KiB/s + O_DIRECT"
-done
-
-for tasks in 1 2 4; do
-for strategy in 0 1; do
- # set bw limiting rules
- if [ -f /dev/blockioctl/blockio.bandwidth ]; then
- io_throttle_file=blockio.bandwidth
- elif [ -f /dev/blockioctl/blockio.bandwidth-max ]; then
- io_throttle_file=blockio.bandwidth-max
- else
- echo "ERROR: unknown kernel ABI. Exiting test."
- cleanup
- exit 1
- fi
- for i in `seq 1 3`; do
- limit=$(($phys_bw * 1024 / `echo 2^$i | bc`))
- IOBW[$i]=$(($limit / 1024))
- /bin/echo $dev:$limit:$strategy:$limit > \
- /dev/blockioctl/cgroup-$i/${io_throttle_file}
- if [ $? -ne 0 ]; then
- echo "ERROR: could not set i/o bandwidth limit for cgroup-$i. Exiting test."
- cleanup
- exit 1
- fi
- done
-
- # run benchmark
- if [ $tasks -eq 1 ]; then
- stream="stream"
- else
- stream="streams"
- fi
- echo -n ">> testing $tasks parallel $stream per cgroup "
- if [ $strategy -eq 0 ]; then
- echo "(leaky-bucket i/o throttling)"
- else
- echo "(token-bucket i/o throttling)"
- fi
- for i in `seq 1 3`; do
- MYGROUP=cgroup-$i
- /bin/echo $$ > /dev/blockioctl/$MYGROUP/tasks
- if [ $? -ne 0 ]; then
- echo "ERROR: could not set i/o bandwidth limit for cgroup-$i. Exiting test."
- cleanup
- exit 1
- fi
- # exec i/o benchmark
- ./iobw -direct $tasks $BUFSIZE $DATASIZE > /tmp/$MYGROUP.out &
- PID[$i]=$!
- done
- /bin/echo $$ > /dev/blockioctl/tasks
-
- # wait for children completion
- for i in `seq 1 3`; do
- MYGROUP=cgroup-$i
- wait ${PID[$i]}
- ret=$?
- if [ $ret -ne 0 ]; then
- echo "ERROR: error code $ret during test $tasks.$strategy.$i. Exiting test."
- cleanup
- exit 1
- fi
- iorate=`grep parent /tmp/${MYGROUP}.out | awk '{print $7}'`
- diff=$((${IOBW[$i]} - $iorate))
- echo "($MYGROUP) i/o-bw ${IOBW[$i]} KiB/s, i/o-rate $iorate KiB/s, err $diff KiB/s"
- if [ ${IOBW[$i]} -ge $iorate ]; then
- echo "TPASS Block device I/O bandwidth controller: test $tasks.$strategy.$i PASSED";
- else
- echo "TFAIL Block device I/O bandwidth controller: test $tasks.$strategy.$i FAILED";
- fi
- done
-done
-done
-
-cleanup
--
2.31.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [LTP] [RFC PATCH] rm unused controllers/io-throttle tests
2021-06-21 14:30 [LTP] [RFC PATCH] rm unused controllers/io-throttle tests Richard Palethorpe
@ 2021-06-23 15:40 ` Petr Vorel
2021-06-25 8:30 ` Li Wang
2021-06-25 9:58 ` [LTP] [Automated-testing] " Cyril Hrubis
0 siblings, 2 replies; 5+ messages in thread
From: Petr Vorel @ 2021-06-23 15:40 UTC (permalink / raw)
To: ltp
Hi Richie,
[Cc automated-testing ML ]
> These files do not appear in any runtest file nor are they called from
> anywhere else.
A bit of googling Documentation/controllers/io-throttle.txt mentioned in README
was sent to kernel ML in 2008 [1] for 2.6.26-rc6, from this time our memory
tests originated [2]. But it looks like it never got merged
(<linux/blk-io-throttle.h> mentioned in patch "i/o bandwidth controller
infrastructure" [3] didn't get into git).
myfunctions-io.sh uses /dev/blockioctl, which IMHO never got into mainline.
IMHO it should have never even got in. Thanks for asking for delete.
Acked-by: Petr Vorel <pvorel@suse.cz>
Kind regards,
Petr
[1] https://lists.linuxfoundation.org/pipermail/containers/2008-June/011372.html
[2] https://lists.linuxfoundation.org/pipermail/containers/2008-June/011384.html
[3] https://lists.linuxfoundation.org/pipermail/containers/2008-June/011373.html
> Signed-off-by: Richard Palethorpe <rpalethorpe@suse.com>
> ---
> .../kernel/controllers/io-throttle/.gitignore | 1 -
> .../kernel/controllers/io-throttle/Makefile | 32 --
> .../kernel/controllers/io-throttle/README | 56 ----
> .../io-throttle/io_throttle_testplan.txt | 36 ---
> .../kernel/controllers/io-throttle/iobw.c | 281 ------------------
> .../controllers/io-throttle/myfunctions-io.sh | 61 ----
> .../io-throttle/run_io_throttle_test.sh | 123 --------
> 7 files changed, 590 deletions(-)
> delete mode 100644 testcases/kernel/controllers/io-throttle/.gitignore
> delete mode 100644 testcases/kernel/controllers/io-throttle/Makefile
> delete mode 100644 testcases/kernel/controllers/io-throttle/README
> delete mode 100644 testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt
> delete mode 100644 testcases/kernel/controllers/io-throttle/iobw.c
> delete mode 100755 testcases/kernel/controllers/io-throttle/myfunctions-io.sh
> delete mode 100755 testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh
> diff --git a/testcases/kernel/controllers/io-throttle/.gitignore b/testcases/kernel/controllers/io-throttle/.gitignore
> deleted file mode 100644
> index 6836f7b74..000000000
> --- a/testcases/kernel/controllers/io-throttle/.gitignore
> +++ /dev/null
> @@ -1 +0,0 @@
> -/iobw
> diff --git a/testcases/kernel/controllers/io-throttle/Makefile b/testcases/kernel/controllers/io-throttle/Makefile
> deleted file mode 100644
> index ceeba7362..000000000
> --- a/testcases/kernel/controllers/io-throttle/Makefile
> +++ /dev/null
> @@ -1,32 +0,0 @@
> -#
> -# kernel/controllers/io-throttle testcase suite Makefile.
> -#
> -# Copyright (C) 2009, Cisco Systems Inc.
> -#
> -# This program is free software; you can redistribute it and/or modify
> -# it under the terms of the GNU General Public License as published by
> -# the Free Software Foundation; either version 2 of the License, or
> -# (at your option) any later version.
> -#
> -# This program is distributed in the hope that it will be useful,
> -# but WITHOUT ANY WARRANTY; without even the implied warranty of
> -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> -# GNU General Public License for more details.
> -#
> -# You should have received a copy of the GNU General Public License along
> -# with this program; if not, write to the Free Software Foundation, Inc.,
> -# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> -#
> -# Ngie Cooper, July 2009
> -#
> -
> -top_srcdir ?= ../../../..
> -
> -include $(top_srcdir)/include/mk/testcases.mk
> -include $(abs_srcdir)/../Makefile.inc
> -
> -INSTALL_TARGETS := run_io_throttle_test.sh myfunctions-io.sh
> -
> -LDLIBS += -lm -lcontrollers
> -
> -include $(top_srcdir)/include/mk/generic_leaf_target.mk
> diff --git a/testcases/kernel/controllers/io-throttle/README b/testcases/kernel/controllers/io-throttle/README
> deleted file mode 100644
> index e5980fb6c..000000000
> --- a/testcases/kernel/controllers/io-throttle/README
> +++ /dev/null
> @@ -1,56 +0,0 @@
> -TEST SUITE:
> -
> -The directory io-throttle contains the tests related to block device I/O
> -bandwdith controller.
> -
> -More testcases are expected to be added in future.
> -
> -TESTS AIM:
> -
> -The aim of the tests is to check the block device I/O throttling functionality
> -for cgroups.
> -
> -FILES DESCRIPTION:
> -
> -iobw.c
> ----------------
> -Simple benchmark to generate parallel streams of direct I/O (O_DIRECT). This
> -benchmark fork()s one task per stream. Each task creates a separate file in the
> -current working directory, fills it with data using O_DIRECT writes and re-read
> -the whole file always in O_DIRECT mode. Different timestamps are used to
> -evaluate per-task I/O rate and total I/O rate (seen by the parent).
> -
> -myfunctions.sh
> -----------
> -This file contains the functions which are common for the io-throttle tests.
> -For ex. the setup and cleanup functions which do the setup for running the
> -test and do the cleanup once the test finishes. The setup() function creates
> -/dev/blockioctl directory and mounts cgroup filesystem on it with memory
> -controller. It then creates a number(n) of groups in /dev/blockioctl. The
> -cleanup function does a complete cleanup of the system.
> -
> -Most of the error scenarios have been taken care of for a sane cleanup of the
> -system. However if cleanup fails in any case, just manually execute the
> -commands written in cleanup function in myfunctions.sh.
> -One of the most common causes of failed cleanup is that you have done cd into
> -any of the groups in controller dir tree.
> -
> -run_io_throttle_test.sh
> -------------------
> -This script creates different scenarios for I/O bandwidth controller testing
> -and fires (n) tasks in different groups to write and read different I/O streams
> -etc. It waits for the return status from tasks and reports test pass/fail
> -accordingly.
> -
> -Makefile
> ---------
> -The usual makefile for this directory
> -
> -PASS/FAIL CRITERION:
> -==================
> -The test cases are intelligent enough in deciding the pass or failure of a
> -test.
> -
> -README:
> ---------
> -This file.
> diff --git a/testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt b/testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt
> deleted file mode 100644
> index fa5b85b42..000000000
> --- a/testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt
> +++ /dev/null
> @@ -1,36 +0,0 @@
> -The I/O bandwidth controller testplan includes a complete set of testcases to
> -verify the effectiveness of the block device I/O throttling capabilities for
> -cgroups.
> -
> -I/O bandwidth limitations are imposed by the testcase script and verified doing
> -I/O activity on a limited block device. Tests are supposed to be passed if the
> -I/O rates of all the different workloads always respect the I/O limitations.
> -
> -TESTCASE DESCRIPTION:
> -====================
> -First of all we evaluate the physical I/O bandwidth (physical-io-bw) of the
> -block device where the current working directory resides.
> -
> -Based on the physical I/O bandwidth three cgroups are created: cgroup-1,
> -cgroup-2, cgroup-3. Cgroups use respectively the following I/O bandwidth
> -limitations:
> -- cgroup-1: physical-io-bw / 2
> -- cgroup-2: physical-io-bw / 4
> -- cgroup-3: physical-io-bw / 8
> -
> -Each test is considered passed only if the I/O limitations above are respected.
> -
> -Currently the following different scenarios are tested:
> -- 1 single stream per cgroup using leaky-bucket I/O throttling
> -- 1 single stream per cgroup using token-bucket I/O throttling
> -- 2 parallel streams per cgroup using leaky-bucket I/O throttling
> -- 2 parallel streams per cgroup using token-bucket I/O throttling
> -- 4 parallel streams per cgroup using leaky-bucket I/O throttling
> -- 4 parallel streams per cgroup using token-bucket I/O throttling
> -
> -For any other information please refer to
> -Documentation/controllers/io-throttle.txt in kernel documentation.
> -
> -Questions?
> -----------
> -Send email to: righi.andrea@gmail.com
> diff --git a/testcases/kernel/controllers/io-throttle/iobw.c b/testcases/kernel/controllers/io-throttle/iobw.c
> deleted file mode 100644
> index e4d9c9bb6..000000000
> --- a/testcases/kernel/controllers/io-throttle/iobw.c
> +++ /dev/null
> @@ -1,281 +0,0 @@
> -/*
> - * iobw.c - simple I/O bandwidth benchmark
> - *
> - * This program is free software; you can redistribute it and/or
> - * modify it under the terms of the GNU General Public
> - * License as published by the Free Software Foundation; either
> - * version 2 of the License, or (at your option) any later version.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> - * General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public
> - * License along with this program; if not, write to the
> - * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
> - * Boston, MA 021110-1307, USA.
> - *
> - * Copyright (C) 2008 Andrea Righi <righi.andrea@gmail.com>
> - */
> -
> -#define _GNU_SOURCE
> -#define __USE_GNU
> -
> -#include <errno.h>
> -#include <stdio.h>
> -#include <stdlib.h>
> -#include <fcntl.h>
> -#include <signal.h>
> -#include <string.h>
> -#include <unistd.h>
> -#include <limits.h>
> -#include <sys/types.h>
> -#include <sys/stat.h>
> -#include <sys/time.h>
> -#include <sys/wait.h>
> -
> -#ifndef PAGE_SIZE
> -#define PAGE_SIZE sysconf(_SC_PAGE_SIZE)
> -#endif
> -
> -#define align(x,a) __align_mask(x,(typeof(x))(a)-1)
> -#define __align_mask(x,mask) (((x)+(mask))&~(mask))
> -#define kb(x) ((x) >> 10)
> -
> -const char usage[] = "Usage: iobw [-direct] threads chunk_size data_size\n";
> -const char child_fmt[] = "(%s) task %3d: time %4lu.%03lu bw %7lu KiB/s (%s)\n";
> -const char parent_fmt[] =
> - "(%s) parent %d: time %4lu.%03lu bw %7lu KiB/s (%s)\n";
> -
> -static int directio = 0;
> -static size_t data_size = 0;
> -static size_t chunk_size = 0;
> -
> -typedef enum {
> - OP_WRITE,
> - OP_READ,
> - NUM_IOPS,
> -} iops_t;
> -
> -static const char *iops[] = {
> - "WRITE",
> - "READ ",
> - "TOTAL",
> -};
> -
> -static int threads;
> -pid_t *children;
> -
> -char *mygroup;
> -
> -static void print_results(int id, iops_t op, size_t bytes, struct timeval *diff)
> -{
> - fprintf(stdout, id ? child_fmt : parent_fmt,
> - mygroup, id, diff->tv_sec, diff->tv_usec / 1000,
> - (bytes / (diff->tv_sec * 1000000L + diff->tv_usec))
> - * 1000000L / 1024, iops[op]);
> -}
> -
> -static void thread(int id)
> -{
> - struct timeval start, stop, diff;
> - int fd, i, ret;
> - size_t n;
> - void *buf;
> - int flags = O_CREAT | O_RDWR | O_LARGEFILE;
> - char filename[32];
> -
> - ret = posix_memalign(&buf, PAGE_SIZE, chunk_size);
> - if (ret < 0) {
> - fprintf(stderr,
> - "ERROR: task %d couldn't allocate %zu bytes (%s)\n",
> - id, chunk_size, strerror(errno));
> - exit(1);
> - }
> - memset(buf, 0xaa, chunk_size);
> -
> - snprintf(filename, sizeof(filename), "%s-%d-iobw.tmp", mygroup, id);
> - if (directio)
> - flags |= O_DIRECT;
> - fd = open(filename, flags, 0600);
> - if (fd < 0) {
> - fprintf(stderr, "ERROR: task %d couldn't open %s (%s)\n",
> - id, filename, strerror(errno));
> - free(buf);
> - exit(1);
> - }
> -
> - /* Write */
> - lseek(fd, 0, SEEK_SET);
> - n = 0;
> - gettimeofday(&start, NULL);
> - while (n < data_size) {
> - i = write(fd, buf, chunk_size);
> - if (i < 0) {
> - fprintf(stderr, "ERROR: task %d writing to %s (%s)\n",
> - id, filename, strerror(errno));
> - ret = 1;
> - goto out;
> - }
> - n += i;
> - }
> - gettimeofday(&stop, NULL);
> - timersub(&stop, &start, &diff);
> - print_results(id + 1, OP_WRITE, data_size, &diff);
> -
> - /* Read */
> - lseek(fd, 0, SEEK_SET);
> - n = 0;
> - gettimeofday(&start, NULL);
> - while (n < data_size) {
> - i = read(fd, buf, chunk_size);
> - if (i < 0) {
> - fprintf(stderr, "ERROR: task %d reading to %s (%s)\n",
> - id, filename, strerror(errno));
> - ret = 1;
> - goto out;
> - }
> - n += i;
> - }
> - gettimeofday(&stop, NULL);
> - timersub(&stop, &start, &diff);
> - print_results(id + 1, OP_READ, data_size, &diff);
> -out:
> - close(fd);
> - unlink(filename);
> - free(buf);
> - exit(ret);
> -}
> -
> -static void spawn(int id)
> -{
> - pid_t pid;
> -
> - pid = fork();
> - switch (pid) {
> - case -1:
> - fprintf(stderr, "ERROR: couldn't fork thread %d\n", id);
> - exit(1);
> - case 0:
> - thread(id);
> - default:
> - children[id] = pid;
> - }
> -}
> -
> -void signal_handler(int sig)
> -{
> - char filename[32];
> - int i;
> -
> - for (i = 0; i < threads; i++)
> - if (children[i])
> - kill(children[i], SIGKILL);
> -
> - for (i = 0; i < threads; i++) {
> - struct stat mystat;
> -
> - snprintf(filename, sizeof(filename), "%s-%d-iobw.tmp",
> - mygroup, i);
> - if (stat(filename, &mystat) < 0)
> - continue;
> - unlink(filename);
> - }
> -
> - fprintf(stdout, "received signal %d, exiting\n", sig);
> - exit(0);
> -}
> -
> -unsigned long long memparse(char *ptr, char **retptr)
> -{
> - unsigned long long ret = strtoull(ptr, retptr, 0);
> -
> - switch (**retptr) {
> - case 'G':
> - case 'g':
> - ret <<= 10;
> - case 'M':
> - case 'm':
> - ret <<= 10;
> - case 'K':
> - case 'k':
> - ret <<= 10;
> - (*retptr)++;
> - default:
> - break;
> - }
> - return ret;
> -}
> -
> -int main(int argc, char *argv[])
> -{
> - struct timeval start, stop, diff;
> - char *end;
> - int i;
> -
> - if (argv[1] && strcmp(argv[1], "-direct") == 0) {
> - directio = 1;
> - argc--;
> - argv++;
> - }
> - if (argc != 4) {
> - fprintf(stderr, usage);
> - exit(1);
> - }
> - if ((threads = atoi(argv[1])) == 0) {
> - fprintf(stderr, usage);
> - exit(1);
> - }
> - chunk_size = align(memparse(argv[2], &end), PAGE_SIZE);
> - if (*end) {
> - fprintf(stderr, usage);
> - exit(1);
> - }
> - data_size = align(memparse(argv[3], &end), PAGE_SIZE);
> - if (*end) {
> - fprintf(stderr, usage);
> - exit(1);
> - }
> -
> - /* retrieve group name */
> - mygroup = getenv("MYGROUP");
> - if (!mygroup) {
> - fprintf(stderr,
> - "ERROR: undefined environment variable MYGROUP\n");
> - exit(1);
> - }
> -
> - children = malloc(sizeof(pid_t) * threads);
> - if (!children) {
> - fprintf(stderr, "ERROR: not enough memory\n");
> - exit(1);
> - }
> -
> - /* handle user interrupt */
> - signal(SIGINT, signal_handler);
> - /* handle kill from shell */
> - signal(SIGTERM, signal_handler);
> -
> - fprintf(stdout, "chunk_size %zuKiB, data_size %zuKiB\n",
> - kb(chunk_size), kb(data_size));
> - fflush(stdout);
> -
> - gettimeofday(&start, NULL);
> - for (i = 0; i < threads; i++)
> - spawn(i);
> - for (i = 0; i < threads; i++) {
> - int status;
> - wait(&status);
> - if (!WIFEXITED(status))
> - exit(1);
> - }
> - gettimeofday(&stop, NULL);
> -
> - timersub(&stop, &start, &diff);
> - print_results(0, NUM_IOPS, data_size * threads * NUM_IOPS, &diff);
> - fflush(stdout);
> - free(children);
> -
> - exit(0);
> -}
> diff --git a/testcases/kernel/controllers/io-throttle/myfunctions-io.sh b/testcases/kernel/controllers/io-throttle/myfunctions-io.sh
> deleted file mode 100755
> index bf4bb2b9a..000000000
> --- a/testcases/kernel/controllers/io-throttle/myfunctions-io.sh
> +++ /dev/null
> @@ -1,61 +0,0 @@
> -#!/bin/sh
> -#
> -# This program is free software; you can redistribute it and/or
> -# modify it under the terms of the GNU General Public
> -# License as published by the Free Software Foundation; either
> -# version 2 of the License, or (at your option) any later version.
> -#
> -# This program is distributed in the hope that it will be useful,
> -# but WITHOUT ANY WARRANTY; without even the implied warranty of
> -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> -# General Public License for more details.
> -#
> -# You should have received a copy of the GNU General Public
> -# License along with this program; if not, write to the
> -# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
> -# Boston, MA 021110-1307, USA.
> -#
> -# Copyright (C) 2008 Andrea Righi <righi.andrea@gmail.com>
> -#
> -# usage . myfunctions.sh
> -
> -setup()
> -{
> - # create testcase cgroups
> - if [ -e /dev/blockioctl ]; then
> - echo "WARN: /dev/blockioctl already exist! overwriting."
> - cleanup
> - fi
> - mkdir /dev/blockioctl
> - mount -t cgroup -o blockio cgroup /dev/blockioctl
> - if [ $? -ne 0 ]; then
> - echo "ERROR: could not mount cgroup filesystem " \
> - " on /dev/blockioctl. Exiting test."
> - cleanup
> - exit 1
> - fi
> - for i in `seq 1 3`; do
> - if [ -e /dev/blockioctl/cgroup-$i ]; then
> - rmdir /dev/blockioctl/cgroup-$i
> - echo "WARN: earlier cgroup-$i found and removed"
> - fi
> - mkdir /dev/blockioctl/cgroup-$i
> - if [ $? -ne 0 ]; then
> - echo "ERROR: could not create cgroup-$i" \
> - "Check your permissions. Exiting test."
> - cleanup
> - exit 1
> - fi
> - done
> -}
> -
> -cleanup()
> -{
> - echo "Cleanup called"
> - for i in `seq 1 3`; do
> - rmdir /dev/blockioctl/cgroup-$i
> - rm -f /tmp/cgroup-$i.out
> - done
> - umount /dev/blockioctl
> - rmdir /dev/blockioctl
> -}
> diff --git a/testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh b/testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh
> deleted file mode 100755
> index c855fd052..000000000
> --- a/testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh
> +++ /dev/null
> @@ -1,123 +0,0 @@
> -#!/bin/bash
> -#
> -# This program is free software; you can redistribute it and/or
> -# modify it under the terms of the GNU General Public
> -# License as published by the Free Software Foundation; either
> -# version 2 of the License, or (at your option) any later version.
> -#
> -# This program is distributed in the hope that it will be useful,
> -# but WITHOUT ANY WARRANTY; without even the implied warranty of
> -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> -# General Public License for more details.
> -#
> -# You should have received a copy of the GNU General Public
> -# License along with this program; if not, write to the
> -# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
> -# Boston, MA 021110-1307, USA.
> -#
> -# Copyright (C) 2008 Andrea Righi <righi.andrea@gmail.com>
> -#
> -# Usage: ./run_io_throttle_test.sh
> -# Description: test block device I/O bandwidth controller functionalities
> -
> -. ./myfunctions-io.sh
> -
> -trap cleanup SIGINT
> -
> -BUFSIZE=16m
> -DATASIZE=64m
> -
> -setup
> -
> -# get the device name of the entire mounted block device
> -dev=`df -P . | sed '1d' | cut -d' ' -f1 | sed 's/[p]*[0-9]*$//'`
> -
> -# evaluate device bandwidth
> -export MYGROUP=
> -phys_bw=`./iobw -direct 1 $BUFSIZE $DATASIZE | grep TOTAL | awk '{print $7}'`
> -if [ $? -ne 0 ]; then
> - echo "ERROR: could not evaluate i/o bandwidth of $dev. Exiting test."
> - cleanup
> - exit 1
> -fi
> -echo ">> physical i/o bandwidth limit is: $phys_bw KiB/s"
> -# show cgroup i/o bandwidth limits
> -for i in `seq 1 3`; do
> - MYGROUP=cgroup-$i
> - echo "($MYGROUP) max i/o bw: " \
> - "$(($phys_bw / `echo 2^$i | bc`)) KiB/s + O_DIRECT"
> -done
> -
> -for tasks in 1 2 4; do
> -for strategy in 0 1; do
> - # set bw limiting rules
> - if [ -f /dev/blockioctl/blockio.bandwidth ]; then
> - io_throttle_file=blockio.bandwidth
> - elif [ -f /dev/blockioctl/blockio.bandwidth-max ]; then
> - io_throttle_file=blockio.bandwidth-max
> - else
> - echo "ERROR: unknown kernel ABI. Exiting test."
> - cleanup
> - exit 1
> - fi
> - for i in `seq 1 3`; do
> - limit=$(($phys_bw * 1024 / `echo 2^$i | bc`))
> - IOBW[$i]=$(($limit / 1024))
> - /bin/echo $dev:$limit:$strategy:$limit > \
> - /dev/blockioctl/cgroup-$i/${io_throttle_file}
> - if [ $? -ne 0 ]; then
> - echo "ERROR: could not set i/o bandwidth limit for cgroup-$i. Exiting test."
> - cleanup
> - exit 1
> - fi
> - done
> -
> - # run benchmark
> - if [ $tasks -eq 1 ]; then
> - stream="stream"
> - else
> - stream="streams"
> - fi
> - echo -n ">> testing $tasks parallel $stream per cgroup "
> - if [ $strategy -eq 0 ]; then
> - echo "(leaky-bucket i/o throttling)"
> - else
> - echo "(token-bucket i/o throttling)"
> - fi
> - for i in `seq 1 3`; do
> - MYGROUP=cgroup-$i
> - /bin/echo $$ > /dev/blockioctl/$MYGROUP/tasks
> - if [ $? -ne 0 ]; then
> - echo "ERROR: could not set i/o bandwidth limit for cgroup-$i. Exiting test."
> - cleanup
> - exit 1
> - fi
> - # exec i/o benchmark
> - ./iobw -direct $tasks $BUFSIZE $DATASIZE > /tmp/$MYGROUP.out &
> - PID[$i]=$!
> - done
> - /bin/echo $$ > /dev/blockioctl/tasks
> -
> - # wait for children completion
> - for i in `seq 1 3`; do
> - MYGROUP=cgroup-$i
> - wait ${PID[$i]}
> - ret=$?
> - if [ $ret -ne 0 ]; then
> - echo "ERROR: error code $ret during test $tasks.$strategy.$i. Exiting test."
> - cleanup
> - exit 1
> - fi
> - iorate=`grep parent /tmp/${MYGROUP}.out | awk '{print $7}'`
> - diff=$((${IOBW[$i]} - $iorate))
> - echo "($MYGROUP) i/o-bw ${IOBW[$i]} KiB/s, i/o-rate $iorate KiB/s, err $diff KiB/s"
> - if [ ${IOBW[$i]} -ge $iorate ]; then
> - echo "TPASS Block device I/O bandwidth controller: test $tasks.$strategy.$i PASSED";
> - else
> - echo "TFAIL Block device I/O bandwidth controller: test $tasks.$strategy.$i FAILED";
> - fi
> - done
> -done
> -done
> -
> -cleanup
^ permalink raw reply [flat|nested] 5+ messages in thread
* [LTP] [RFC PATCH] rm unused controllers/io-throttle tests
2021-06-23 15:40 ` Petr Vorel
@ 2021-06-25 8:30 ` Li Wang
2021-06-28 15:02 ` Petr Vorel
2021-06-25 9:58 ` [LTP] [Automated-testing] " Cyril Hrubis
1 sibling, 1 reply; 5+ messages in thread
From: Li Wang @ 2021-06-25 8:30 UTC (permalink / raw)
To: ltp
On Wed, Jun 23, 2021 at 11:40 PM Petr Vorel <pvorel@suse.cz> wrote:
> Hi Richie,
>
> [Cc automated-testing ML ]
> > These files do not appear in any runtest file nor are they called from
> > anywhere else.
>
> A bit of googling Documentation/controllers/io-throttle.txt mentioned in
> README
> was sent to kernel ML in 2008 [1] for 2.6.26-rc6, from this time our memory
> tests originated [2]. But it looks like it never got merged
> (<linux/blk-io-throttle.h> mentioned in patch "i/o bandwidth controller
> infrastructure" [3] didn't get into git).
>
> myfunctions-io.sh uses /dev/blockioctl, which IMHO never got into mainline.
>
Thanks to provide the details info.
Acked-by: Li Wang <liwang@redhat.com>
>
> IMHO it should have never even got in. Thanks for asking for delete.
>
> Acked-by: Petr Vorel <pvorel@suse.cz>
>
> Kind regards,
> Petr
>
> [1]
> https://lists.linuxfoundation.org/pipermail/containers/2008-June/011372.html
> [2]
> https://lists.linuxfoundation.org/pipermail/containers/2008-June/011384.html
> [3]
> https://lists.linuxfoundation.org/pipermail/containers/2008-June/011373.html
>
> > Signed-off-by: Richard Palethorpe <rpalethorpe@suse.com>
> > ---
>
> > .../kernel/controllers/io-throttle/.gitignore | 1 -
> > .../kernel/controllers/io-throttle/Makefile | 32 --
> > .../kernel/controllers/io-throttle/README | 56 ----
> > .../io-throttle/io_throttle_testplan.txt | 36 ---
> > .../kernel/controllers/io-throttle/iobw.c | 281 ------------------
> > .../controllers/io-throttle/myfunctions-io.sh | 61 ----
> > .../io-throttle/run_io_throttle_test.sh | 123 --------
> > 7 files changed, 590 deletions(-)
> > delete mode 100644 testcases/kernel/controllers/io-throttle/.gitignore
> > delete mode 100644 testcases/kernel/controllers/io-throttle/Makefile
> > delete mode 100644 testcases/kernel/controllers/io-throttle/README
> > delete mode 100644
> testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt
> > delete mode 100644 testcases/kernel/controllers/io-throttle/iobw.c
> > delete mode 100755
> testcases/kernel/controllers/io-throttle/myfunctions-io.sh
> > delete mode 100755
> testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh
>
> > diff --git a/testcases/kernel/controllers/io-throttle/.gitignore
> b/testcases/kernel/controllers/io-throttle/.gitignore
> > deleted file mode 100644
> > index 6836f7b74..000000000
> > --- a/testcases/kernel/controllers/io-throttle/.gitignore
> > +++ /dev/null
> > @@ -1 +0,0 @@
> > -/iobw
> > diff --git a/testcases/kernel/controllers/io-throttle/Makefile
> b/testcases/kernel/controllers/io-throttle/Makefile
> > deleted file mode 100644
> > index ceeba7362..000000000
> > --- a/testcases/kernel/controllers/io-throttle/Makefile
> > +++ /dev/null
> > @@ -1,32 +0,0 @@
> > -#
> > -# kernel/controllers/io-throttle testcase suite Makefile.
> > -#
> > -# Copyright (C) 2009, Cisco Systems Inc.
> > -#
> > -# This program is free software; you can redistribute it and/or
> modify
> > -# it under the terms of the GNU General Public License as published
> by
> > -# the Free Software Foundation; either version 2 of the License, or
> > -# (at your option) any later version.
> > -#
> > -# This program is distributed in the hope that it will be useful,
> > -# but WITHOUT ANY WARRANTY; without even the implied warranty of
> > -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> > -# GNU General Public License for more details.
> > -#
> > -# You should have received a copy of the GNU General Public License
> along
> > -# with this program; if not, write to the Free Software Foundation,
> Inc.,
> > -# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> > -#
> > -# Ngie Cooper, July 2009
> > -#
> > -
> > -top_srcdir ?= ../../../..
> > -
> > -include $(top_srcdir)/include/mk/testcases.mk
> > -include $(abs_srcdir)/../Makefile.inc
> > -
> > -INSTALL_TARGETS := run_io_throttle_test.sh
> myfunctions-io.sh
> > -
> > -LDLIBS += -lm -lcontrollers
> > -
> > -include $(top_srcdir)/include/mk/generic_leaf_target.mk
> > diff --git a/testcases/kernel/controllers/io-throttle/README
> b/testcases/kernel/controllers/io-throttle/README
> > deleted file mode 100644
> > index e5980fb6c..000000000
> > --- a/testcases/kernel/controllers/io-throttle/README
> > +++ /dev/null
> > @@ -1,56 +0,0 @@
> > -TEST SUITE:
> > -
> > -The directory io-throttle contains the tests related to block device I/O
> > -bandwdith controller.
> > -
> > -More testcases are expected to be added in future.
> > -
> > -TESTS AIM:
> > -
> > -The aim of the tests is to check the block device I/O throttling
> functionality
> > -for cgroups.
> > -
> > -FILES DESCRIPTION:
> > -
> > -iobw.c
> > ----------------
> > -Simple benchmark to generate parallel streams of direct I/O (O_DIRECT).
> This
> > -benchmark fork()s one task per stream. Each task creates a separate
> file in the
> > -current working directory, fills it with data using O_DIRECT writes and
> re-read
> > -the whole file always in O_DIRECT mode. Different timestamps are used to
> > -evaluate per-task I/O rate and total I/O rate (seen by the parent).
> > -
> > -myfunctions.sh
> > -----------
> > -This file contains the functions which are common for the io-throttle
> tests.
> > -For ex. the setup and cleanup functions which do the setup for running
> the
> > -test and do the cleanup once the test finishes. The setup() function
> creates
> > -/dev/blockioctl directory and mounts cgroup filesystem on it with memory
> > -controller. It then creates a number(n) of groups in /dev/blockioctl.
> The
> > -cleanup function does a complete cleanup of the system.
> > -
> > -Most of the error scenarios have been taken care of for a sane cleanup
> of the
> > -system. However if cleanup fails in any case, just manually execute the
> > -commands written in cleanup function in myfunctions.sh.
> > -One of the most common causes of failed cleanup is that you have done
> cd into
> > -any of the groups in controller dir tree.
> > -
> > -run_io_throttle_test.sh
> > -------------------
> > -This script creates different scenarios for I/O bandwidth controller
> testing
> > -and fires (n) tasks in different groups to write and read different I/O
> streams
> > -etc. It waits for the return status from tasks and reports test
> pass/fail
> > -accordingly.
> > -
> > -Makefile
> > ---------
> > -The usual makefile for this directory
> > -
> > -PASS/FAIL CRITERION:
> > -==================
> > -The test cases are intelligent enough in deciding the pass or failure
> of a
> > -test.
> > -
> > -README:
> > ---------
> > -This file.
> > diff --git
> a/testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt
> b/testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt
> > deleted file mode 100644
> > index fa5b85b42..000000000
> > --- a/testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt
> > +++ /dev/null
> > @@ -1,36 +0,0 @@
> > -The I/O bandwidth controller testplan includes a complete set of
> testcases to
> > -verify the effectiveness of the block device I/O throttling
> capabilities for
> > -cgroups.
> > -
> > -I/O bandwidth limitations are imposed by the testcase script and
> verified doing
> > -I/O activity on a limited block device. Tests are supposed to be passed
> if the
> > -I/O rates of all the different workloads always respect the I/O
> limitations.
> > -
> > -TESTCASE DESCRIPTION:
> > -====================
> > -First of all we evaluate the physical I/O bandwidth (physical-io-bw) of
> the
> > -block device where the current working directory resides.
> > -
> > -Based on the physical I/O bandwidth three cgroups are created: cgroup-1,
> > -cgroup-2, cgroup-3. Cgroups use respectively the following I/O bandwidth
> > -limitations:
> > -- cgroup-1: physical-io-bw / 2
> > -- cgroup-2: physical-io-bw / 4
> > -- cgroup-3: physical-io-bw / 8
> > -
> > -Each test is considered passed only if the I/O limitations above are
> respected.
> > -
> > -Currently the following different scenarios are tested:
> > -- 1 single stream per cgroup using leaky-bucket I/O throttling
> > -- 1 single stream per cgroup using token-bucket I/O throttling
> > -- 2 parallel streams per cgroup using leaky-bucket I/O throttling
> > -- 2 parallel streams per cgroup using token-bucket I/O throttling
> > -- 4 parallel streams per cgroup using leaky-bucket I/O throttling
> > -- 4 parallel streams per cgroup using token-bucket I/O throttling
> > -
> > -For any other information please refer to
> > -Documentation/controllers/io-throttle.txt in kernel documentation.
> > -
> > -Questions?
> > -----------
> > -Send email to: righi.andrea@gmail.com
> > diff --git a/testcases/kernel/controllers/io-throttle/iobw.c
> b/testcases/kernel/controllers/io-throttle/iobw.c
> > deleted file mode 100644
> > index e4d9c9bb6..000000000
> > --- a/testcases/kernel/controllers/io-throttle/iobw.c
> > +++ /dev/null
> > @@ -1,281 +0,0 @@
> > -/*
> > - * iobw.c - simple I/O bandwidth benchmark
> > - *
> > - * This program is free software; you can redistribute it and/or
> > - * modify it under the terms of the GNU General Public
> > - * License as published by the Free Software Foundation; either
> > - * version 2 of the License, or (at your option) any later version.
> > - *
> > - * This program is distributed in the hope that it will be useful,
> > - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> > - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> > - * General Public License for more details.
> > - *
> > - * You should have received a copy of the GNU General Public
> > - * License along with this program; if not, write to the
> > - * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
> > - * Boston, MA 021110-1307, USA.
> > - *
> > - * Copyright (C) 2008 Andrea Righi <righi.andrea@gmail.com>
> > - */
> > -
> > -#define _GNU_SOURCE
> > -#define __USE_GNU
> > -
> > -#include <errno.h>
> > -#include <stdio.h>
> > -#include <stdlib.h>
> > -#include <fcntl.h>
> > -#include <signal.h>
> > -#include <string.h>
> > -#include <unistd.h>
> > -#include <limits.h>
> > -#include <sys/types.h>
> > -#include <sys/stat.h>
> > -#include <sys/time.h>
> > -#include <sys/wait.h>
> > -
> > -#ifndef PAGE_SIZE
> > -#define PAGE_SIZE sysconf(_SC_PAGE_SIZE)
> > -#endif
> > -
> > -#define align(x,a) __align_mask(x,(typeof(x))(a)-1)
> > -#define __align_mask(x,mask) (((x)+(mask))&~(mask))
> > -#define kb(x) ((x) >> 10)
> > -
> > -const char usage[] = "Usage: iobw [-direct] threads chunk_size
> data_size\n";
> > -const char child_fmt[] = "(%s) task %3d: time %4lu.%03lu bw %7lu KiB/s
> (%s)\n";
> > -const char parent_fmt[] =
> > - "(%s) parent %d: time %4lu.%03lu bw %7lu KiB/s (%s)\n";
> > -
> > -static int directio = 0;
> > -static size_t data_size = 0;
> > -static size_t chunk_size = 0;
> > -
> > -typedef enum {
> > - OP_WRITE,
> > - OP_READ,
> > - NUM_IOPS,
> > -} iops_t;
> > -
> > -static const char *iops[] = {
> > - "WRITE",
> > - "READ ",
> > - "TOTAL",
> > -};
> > -
> > -static int threads;
> > -pid_t *children;
> > -
> > -char *mygroup;
> > -
> > -static void print_results(int id, iops_t op, size_t bytes, struct
> timeval *diff)
> > -{
> > - fprintf(stdout, id ? child_fmt : parent_fmt,
> > - mygroup, id, diff->tv_sec, diff->tv_usec / 1000,
> > - (bytes / (diff->tv_sec * 1000000L + diff->tv_usec))
> > - * 1000000L / 1024, iops[op]);
> > -}
> > -
> > -static void thread(int id)
> > -{
> > - struct timeval start, stop, diff;
> > - int fd, i, ret;
> > - size_t n;
> > - void *buf;
> > - int flags = O_CREAT | O_RDWR | O_LARGEFILE;
> > - char filename[32];
> > -
> > - ret = posix_memalign(&buf, PAGE_SIZE, chunk_size);
> > - if (ret < 0) {
> > - fprintf(stderr,
> > - "ERROR: task %d couldn't allocate %zu bytes
> (%s)\n",
> > - id, chunk_size, strerror(errno));
> > - exit(1);
> > - }
> > - memset(buf, 0xaa, chunk_size);
> > -
> > - snprintf(filename, sizeof(filename), "%s-%d-iobw.tmp", mygroup,
> id);
> > - if (directio)
> > - flags |= O_DIRECT;
> > - fd = open(filename, flags, 0600);
> > - if (fd < 0) {
> > - fprintf(stderr, "ERROR: task %d couldn't open %s (%s)\n",
> > - id, filename, strerror(errno));
> > - free(buf);
> > - exit(1);
> > - }
> > -
> > - /* Write */
> > - lseek(fd, 0, SEEK_SET);
> > - n = 0;
> > - gettimeofday(&start, NULL);
> > - while (n < data_size) {
> > - i = write(fd, buf, chunk_size);
> > - if (i < 0) {
> > - fprintf(stderr, "ERROR: task %d writing to %s
> (%s)\n",
> > - id, filename, strerror(errno));
> > - ret = 1;
> > - goto out;
> > - }
> > - n += i;
> > - }
> > - gettimeofday(&stop, NULL);
> > - timersub(&stop, &start, &diff);
> > - print_results(id + 1, OP_WRITE, data_size, &diff);
> > -
> > - /* Read */
> > - lseek(fd, 0, SEEK_SET);
> > - n = 0;
> > - gettimeofday(&start, NULL);
> > - while (n < data_size) {
> > - i = read(fd, buf, chunk_size);
> > - if (i < 0) {
> > - fprintf(stderr, "ERROR: task %d reading to %s
> (%s)\n",
> > - id, filename, strerror(errno));
> > - ret = 1;
> > - goto out;
> > - }
> > - n += i;
> > - }
> > - gettimeofday(&stop, NULL);
> > - timersub(&stop, &start, &diff);
> > - print_results(id + 1, OP_READ, data_size, &diff);
> > -out:
> > - close(fd);
> > - unlink(filename);
> > - free(buf);
> > - exit(ret);
> > -}
> > -
> > -static void spawn(int id)
> > -{
> > - pid_t pid;
> > -
> > - pid = fork();
> > - switch (pid) {
> > - case -1:
> > - fprintf(stderr, "ERROR: couldn't fork thread %d\n", id);
> > - exit(1);
> > - case 0:
> > - thread(id);
> > - default:
> > - children[id] = pid;
> > - }
> > -}
> > -
> > -void signal_handler(int sig)
> > -{
> > - char filename[32];
> > - int i;
> > -
> > - for (i = 0; i < threads; i++)
> > - if (children[i])
> > - kill(children[i], SIGKILL);
> > -
> > - for (i = 0; i < threads; i++) {
> > - struct stat mystat;
> > -
> > - snprintf(filename, sizeof(filename), "%s-%d-iobw.tmp",
> > - mygroup, i);
> > - if (stat(filename, &mystat) < 0)
> > - continue;
> > - unlink(filename);
> > - }
> > -
> > - fprintf(stdout, "received signal %d, exiting\n", sig);
> > - exit(0);
> > -}
> > -
> > -unsigned long long memparse(char *ptr, char **retptr)
> > -{
> > - unsigned long long ret = strtoull(ptr, retptr, 0);
> > -
> > - switch (**retptr) {
> > - case 'G':
> > - case 'g':
> > - ret <<= 10;
> > - case 'M':
> > - case 'm':
> > - ret <<= 10;
> > - case 'K':
> > - case 'k':
> > - ret <<= 10;
> > - (*retptr)++;
> > - default:
> > - break;
> > - }
> > - return ret;
> > -}
> > -
> > -int main(int argc, char *argv[])
> > -{
> > - struct timeval start, stop, diff;
> > - char *end;
> > - int i;
> > -
> > - if (argv[1] && strcmp(argv[1], "-direct") == 0) {
> > - directio = 1;
> > - argc--;
> > - argv++;
> > - }
> > - if (argc != 4) {
> > - fprintf(stderr, usage);
> > - exit(1);
> > - }
> > - if ((threads = atoi(argv[1])) == 0) {
> > - fprintf(stderr, usage);
> > - exit(1);
> > - }
> > - chunk_size = align(memparse(argv[2], &end), PAGE_SIZE);
> > - if (*end) {
> > - fprintf(stderr, usage);
> > - exit(1);
> > - }
> > - data_size = align(memparse(argv[3], &end), PAGE_SIZE);
> > - if (*end) {
> > - fprintf(stderr, usage);
> > - exit(1);
> > - }
> > -
> > - /* retrieve group name */
> > - mygroup = getenv("MYGROUP");
> > - if (!mygroup) {
> > - fprintf(stderr,
> > - "ERROR: undefined environment variable MYGROUP\n");
> > - exit(1);
> > - }
> > -
> > - children = malloc(sizeof(pid_t) * threads);
> > - if (!children) {
> > - fprintf(stderr, "ERROR: not enough memory\n");
> > - exit(1);
> > - }
> > -
> > - /* handle user interrupt */
> > - signal(SIGINT, signal_handler);
> > - /* handle kill from shell */
> > - signal(SIGTERM, signal_handler);
> > -
> > - fprintf(stdout, "chunk_size %zuKiB, data_size %zuKiB\n",
> > - kb(chunk_size), kb(data_size));
> > - fflush(stdout);
> > -
> > - gettimeofday(&start, NULL);
> > - for (i = 0; i < threads; i++)
> > - spawn(i);
> > - for (i = 0; i < threads; i++) {
> > - int status;
> > - wait(&status);
> > - if (!WIFEXITED(status))
> > - exit(1);
> > - }
> > - gettimeofday(&stop, NULL);
> > -
> > - timersub(&stop, &start, &diff);
> > - print_results(0, NUM_IOPS, data_size * threads * NUM_IOPS, &diff);
> > - fflush(stdout);
> > - free(children);
> > -
> > - exit(0);
> > -}
> > diff --git a/testcases/kernel/controllers/io-throttle/myfunctions-io.sh
> b/testcases/kernel/controllers/io-throttle/myfunctions-io.sh
> > deleted file mode 100755
> > index bf4bb2b9a..000000000
> > --- a/testcases/kernel/controllers/io-throttle/myfunctions-io.sh
> > +++ /dev/null
> > @@ -1,61 +0,0 @@
> > -#!/bin/sh
> > -#
> > -# This program is free software; you can redistribute it and/or
> > -# modify it under the terms of the GNU General Public
> > -# License as published by the Free Software Foundation; either
> > -# version 2 of the License, or (at your option) any later version.
> > -#
> > -# This program is distributed in the hope that it will be useful,
> > -# but WITHOUT ANY WARRANTY; without even the implied warranty of
> > -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> > -# General Public License for more details.
> > -#
> > -# You should have received a copy of the GNU General Public
> > -# License along with this program; if not, write to the
> > -# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
> > -# Boston, MA 021110-1307, USA.
> > -#
> > -# Copyright (C) 2008 Andrea Righi <righi.andrea@gmail.com>
> > -#
> > -# usage . myfunctions.sh
> > -
> > -setup()
> > -{
> > - # create testcase cgroups
> > - if [ -e /dev/blockioctl ]; then
> > - echo "WARN: /dev/blockioctl already exist! overwriting."
> > - cleanup
> > - fi
> > - mkdir /dev/blockioctl
> > - mount -t cgroup -o blockio cgroup /dev/blockioctl
> > - if [ $? -ne 0 ]; then
> > - echo "ERROR: could not mount cgroup filesystem " \
> > - " on /dev/blockioctl. Exiting test."
> > - cleanup
> > - exit 1
> > - fi
> > - for i in `seq 1 3`; do
> > - if [ -e /dev/blockioctl/cgroup-$i ]; then
> > - rmdir /dev/blockioctl/cgroup-$i
> > - echo "WARN: earlier cgroup-$i found and removed"
> > - fi
> > - mkdir /dev/blockioctl/cgroup-$i
> > - if [ $? -ne 0 ]; then
> > - echo "ERROR: could not create cgroup-$i" \
> > - "Check your permissions. Exiting test."
> > - cleanup
> > - exit 1
> > - fi
> > - done
> > -}
> > -
> > -cleanup()
> > -{
> > - echo "Cleanup called"
> > - for i in `seq 1 3`; do
> > - rmdir /dev/blockioctl/cgroup-$i
> > - rm -f /tmp/cgroup-$i.out
> > - done
> > - umount /dev/blockioctl
> > - rmdir /dev/blockioctl
> > -}
> > diff --git
> a/testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh
> b/testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh
> > deleted file mode 100755
> > index c855fd052..000000000
> > --- a/testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh
> > +++ /dev/null
> > @@ -1,123 +0,0 @@
> > -#!/bin/bash
> > -#
> > -# This program is free software; you can redistribute it and/or
> > -# modify it under the terms of the GNU General Public
> > -# License as published by the Free Software Foundation; either
> > -# version 2 of the License, or (at your option) any later version.
> > -#
> > -# This program is distributed in the hope that it will be useful,
> > -# but WITHOUT ANY WARRANTY; without even the implied warranty of
> > -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> > -# General Public License for more details.
> > -#
> > -# You should have received a copy of the GNU General Public
> > -# License along with this program; if not, write to the
> > -# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
> > -# Boston, MA 021110-1307, USA.
> > -#
> > -# Copyright (C) 2008 Andrea Righi <righi.andrea@gmail.com>
> > -#
> > -# Usage: ./run_io_throttle_test.sh
> > -# Description: test block device I/O bandwidth controller
> functionalities
> > -
> > -. ./myfunctions-io.sh
> > -
> > -trap cleanup SIGINT
> > -
> > -BUFSIZE=16m
> > -DATASIZE=64m
> > -
> > -setup
> > -
> > -# get the device name of the entire mounted block device
> > -dev=`df -P . | sed '1d' | cut -d' ' -f1 | sed 's/[p]*[0-9]*$//'`
> > -
> > -# evaluate device bandwidth
> > -export MYGROUP=
> > -phys_bw=`./iobw -direct 1 $BUFSIZE $DATASIZE | grep TOTAL | awk '{print
> $7}'`
> > -if [ $? -ne 0 ]; then
> > - echo "ERROR: could not evaluate i/o bandwidth of $dev. Exiting
> test."
> > - cleanup
> > - exit 1
> > -fi
> > -echo ">> physical i/o bandwidth limit is: $phys_bw KiB/s"
> > -# show cgroup i/o bandwidth limits
> > -for i in `seq 1 3`; do
> > - MYGROUP=cgroup-$i
> > - echo "($MYGROUP) max i/o bw: " \
> > - "$(($phys_bw / `echo 2^$i | bc`)) KiB/s + O_DIRECT"
> > -done
> > -
> > -for tasks in 1 2 4; do
> > -for strategy in 0 1; do
> > - # set bw limiting rules
> > - if [ -f /dev/blockioctl/blockio.bandwidth ]; then
> > - io_throttle_file=blockio.bandwidth
> > - elif [ -f /dev/blockioctl/blockio.bandwidth-max ]; then
> > - io_throttle_file=blockio.bandwidth-max
> > - else
> > - echo "ERROR: unknown kernel ABI. Exiting test."
> > - cleanup
> > - exit 1
> > - fi
> > - for i in `seq 1 3`; do
> > - limit=$(($phys_bw * 1024 / `echo 2^$i | bc`))
> > - IOBW[$i]=$(($limit / 1024))
> > - /bin/echo $dev:$limit:$strategy:$limit > \
> > - /dev/blockioctl/cgroup-$i/${io_throttle_file}
> > - if [ $? -ne 0 ]; then
> > - echo "ERROR: could not set i/o bandwidth limit for
> cgroup-$i. Exiting test."
> > - cleanup
> > - exit 1
> > - fi
> > - done
> > -
> > - # run benchmark
> > - if [ $tasks -eq 1 ]; then
> > - stream="stream"
> > - else
> > - stream="streams"
> > - fi
> > - echo -n ">> testing $tasks parallel $stream per cgroup "
> > - if [ $strategy -eq 0 ]; then
> > - echo "(leaky-bucket i/o throttling)"
> > - else
> > - echo "(token-bucket i/o throttling)"
> > - fi
> > - for i in `seq 1 3`; do
> > - MYGROUP=cgroup-$i
> > - /bin/echo $$ > /dev/blockioctl/$MYGROUP/tasks
> > - if [ $? -ne 0 ]; then
> > - echo "ERROR: could not set i/o bandwidth limit for
> cgroup-$i. Exiting test."
> > - cleanup
> > - exit 1
> > - fi
> > - # exec i/o benchmark
> > - ./iobw -direct $tasks $BUFSIZE $DATASIZE >
> /tmp/$MYGROUP.out &
> > - PID[$i]=$!
> > - done
> > - /bin/echo $$ > /dev/blockioctl/tasks
> > -
> > - # wait for children completion
> > - for i in `seq 1 3`; do
> > - MYGROUP=cgroup-$i
> > - wait ${PID[$i]}
> > - ret=$?
> > - if [ $ret -ne 0 ]; then
> > - echo "ERROR: error code $ret during test
> $tasks.$strategy.$i. Exiting test."
> > - cleanup
> > - exit 1
> > - fi
> > - iorate=`grep parent /tmp/${MYGROUP}.out | awk '{print $7}'`
> > - diff=$((${IOBW[$i]} - $iorate))
> > - echo "($MYGROUP) i/o-bw ${IOBW[$i]} KiB/s, i/o-rate
> $iorate KiB/s, err $diff KiB/s"
> > - if [ ${IOBW[$i]} -ge $iorate ]; then
> > - echo "TPASS Block device I/O bandwidth
> controller: test $tasks.$strategy.$i PASSED";
> > - else
> > - echo "TFAIL Block device I/O bandwidth
> controller: test $tasks.$strategy.$i FAILED";
> > - fi
> > - done
> > -done
> > -done
> > -
> > -cleanup
>
> --
> Mailing list info: https://lists.linux.it/listinfo/ltp
>
>
--
Regards,
Li Wang
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^ permalink raw reply [flat|nested] 5+ messages in thread
* [LTP] [Automated-testing] [RFC PATCH] rm unused controllers/io-throttle tests
2021-06-23 15:40 ` Petr Vorel
2021-06-25 8:30 ` Li Wang
@ 2021-06-25 9:58 ` Cyril Hrubis
1 sibling, 0 replies; 5+ messages in thread
From: Cyril Hrubis @ 2021-06-25 9:58 UTC (permalink / raw)
To: ltp
Hi!
> Acked-by: Petr Vorel <pvorel@suse.cz>
Things that never got into mainline shouldn't be in the repo at all...
Acked-by: Cyril Hrubis <chrubis@suse.cz>
--
Cyril Hrubis
chrubis@suse.cz
^ permalink raw reply [flat|nested] 5+ messages in thread
* [LTP] [RFC PATCH] rm unused controllers/io-throttle tests
2021-06-25 8:30 ` Li Wang
@ 2021-06-28 15:02 ` Petr Vorel
0 siblings, 0 replies; 5+ messages in thread
From: Petr Vorel @ 2021-06-28 15:02 UTC (permalink / raw)
To: ltp
Hi Richie,
thanks a lot, merged!
Kind regards,
Petr
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2021-06-28 15:02 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-06-21 14:30 [LTP] [RFC PATCH] rm unused controllers/io-throttle tests Richard Palethorpe
2021-06-23 15:40 ` Petr Vorel
2021-06-25 8:30 ` Li Wang
2021-06-28 15:02 ` Petr Vorel
2021-06-25 9:58 ` [LTP] [Automated-testing] " Cyril Hrubis
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