From: Anshuman Khandual <khandual@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Cc: mhocko@suse.com, vbabka@suse.cz, mgorman@suse.de,
minchan@kernel.org, aneesh.kumar@linux.vnet.ibm.com,
bsingharora@gmail.com, srikar@linux.vnet.ibm.com,
haren@linux.vnet.ibm.com, jglisse@redhat.com,
dave.hansen@intel.com, dan.j.williams@intel.com
Subject: [DEBUG 21/21] selftests/powerpc: Add a script to perform random VMA migrations
Date: Mon, 30 Jan 2017 09:06:02 +0530 [thread overview]
Message-ID: <20170130033602.12275-22-khandual@linux.vnet.ibm.com> (raw)
In-Reply-To: <20170130033602.12275-1-khandual@linux.vnet.ibm.com>
This is a test script which creates a workload (e.g ebizzy) and go through
it's VMAs (/proc/pid/maps) and initiate migration to random nodes which can
be either system memory node or coherent memory node.
Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
---
tools/testing/selftests/vm/cdm_migration.sh | 77 +++++++++++++++++++++++++++++
1 file changed, 77 insertions(+)
create mode 100755 tools/testing/selftests/vm/cdm_migration.sh
diff --git a/tools/testing/selftests/vm/cdm_migration.sh b/tools/testing/selftests/vm/cdm_migration.sh
new file mode 100755
index 0000000..3ded302
--- /dev/null
+++ b/tools/testing/selftests/vm/cdm_migration.sh
@@ -0,0 +1,77 @@
+#!/usr/bin/bash
+#
+# Should work with any workoad and workload commandline.
+# But for now ebizzy should be installed. Please run it
+# as root.
+#
+# Copyright (C) Anshuman Khandual 2016, IBM Corporation
+#
+# Licensed under GPL V2
+
+# Unload, build and reload modules
+if [ "$1" = "reload" ]
+then
+ rmmod coherent_memory_demo
+ rmmod coherent_hotplug_demo
+ cd ../../../../
+ make -s -j 64 modules
+ insmod drivers/char/coherent_hotplug_demo.ko
+ insmod drivers/char/coherent_memory_demo.ko
+ cd -
+fi
+
+# Workload
+workload=ebizzy
+work_cmd="ebizzy -T -z -m -t 128 -n 100000 -s 32768 -S 10000"
+
+pkill $workload
+$work_cmd &
+
+# File
+if [ -e input_file.txt ]
+then
+ rm input_file.txt
+fi
+
+# Inputs
+pid=`pidof ebizzy`
+cp /proc/$pid/maps input_file.txt
+if [ ! -e input_file.txt ]
+then
+ echo "Input file was not created"
+ exit
+fi
+input=input_file.txt
+
+# Migrations
+dmesg -C
+while read line
+do
+ addr_start=$(echo $line | cut -d '-' -f1)
+ addr_end=$(echo $line | cut -d '-' -f2 | cut -d ' ' -f1)
+ node=`expr $RANDOM % 5`
+
+ echo $pid,0x$addr_start,0x$addr_end,$node > \
+ /sys/kernel/debug/coherent_debug
+done < "$input"
+
+# Analyze dmesg output
+passed=`dmesg | grep "migration_passed" | wc -l`
+failed=`dmesg | grep "migration_failed" | wc -l`
+queuef=`dmesg | grep "queue_pages_range_failed" | wc -l`
+empty=`dmesg | grep "list_empty" | wc -l`
+missing=`dmesg | grep "vma_missing" | wc -l`
+
+# Stats
+echo passed $passed
+echo failed $failed
+echo queuef $queuef
+echo empty $empty
+echo missing $missing
+
+# Cleanup
+rm input_file.txt
+if pgrep -x $workload > /dev/null
+then
+ pkill $workload
+fi
--
2.9.3
next prev parent reply other threads:[~2017-01-30 3:40 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-30 3:35 [RFC V2 00/12] Define coherent device memory node Anshuman Khandual
2017-01-30 3:35 ` [RFC V2 01/12] mm: Define coherent device memory (CDM) node Anshuman Khandual
2017-01-30 3:35 ` [RFC V2 02/12] mm: Isolate HugeTLB allocations away from CDM nodes Anshuman Khandual
2017-01-30 17:19 ` Dave Hansen
2017-01-31 1:03 ` Anshuman Khandual
2017-01-31 1:37 ` Dave Hansen
2017-02-01 13:59 ` Anshuman Khandual
2017-02-01 19:01 ` Dave Hansen
2017-01-30 3:35 ` [RFC V2 03/12] mm: Change generic FALLBACK zonelist creation process Anshuman Khandual
2017-01-30 17:34 ` Dave Hansen
2017-01-31 1:36 ` Anshuman Khandual
2017-01-31 1:57 ` Dave Hansen
2017-01-31 7:25 ` John Hubbard
2017-01-31 18:04 ` Dave Hansen
2017-01-31 19:14 ` David Nellans
2017-02-01 6:56 ` Anshuman Khandual
2017-02-01 6:46 ` Anshuman Khandual
2017-02-01 6:40 ` Anshuman Khandual
2017-01-30 3:35 ` [RFC V2 04/12] mm: Change mbind(MPOL_BIND) implementation for CDM nodes Anshuman Khandual
2017-01-30 3:35 ` [RFC V2 05/12] cpuset: Add cpuset_inc() inside cpuset_init() Anshuman Khandual
2017-01-30 17:36 ` Dave Hansen
2017-01-30 20:30 ` Mel Gorman
2017-01-31 14:22 ` [RFC] cpuset: Enable changing of top_cpuset's mems_allowed nodemask Anshuman Khandual
2017-01-31 16:00 ` Mel Gorman
2017-02-01 7:31 ` Anshuman Khandual
2017-02-01 8:53 ` Michal Hocko
2017-02-01 9:18 ` Mel Gorman
2017-01-31 14:36 ` [RFC V2 05/12] cpuset: Add cpuset_inc() inside cpuset_init() Vlastimil Babka
2017-01-31 15:30 ` Anshuman Khandual
2017-01-30 3:35 ` [RFC V2 06/12] mm: Exclude CDM nodes from task->mems_allowed and root cpuset Anshuman Khandual
2017-01-30 3:35 ` [RFC V2 07/12] mm: Ignore cpuset enforcement when allocation flag has __GFP_THISNODE Anshuman Khandual
2017-01-30 3:35 ` [RFC V2 08/12] mm: Add new VMA flag VM_CDM Anshuman Khandual
2017-01-30 18:52 ` Jerome Glisse
2017-01-31 4:22 ` Anshuman Khandual
2017-01-31 6:05 ` Jerome Glisse
2017-01-30 3:35 ` [RFC V2 09/12] mm: Exclude CDM marked VMAs from auto NUMA Anshuman Khandual
2017-01-30 3:35 ` [RFC V2 10/12] mm: Ignore madvise(MADV_MERGEABLE) request for VM_CDM marked VMAs Anshuman Khandual
2017-01-30 3:35 ` [RFC V2 11/12] mm: Tag VMA with VM_CDM flag during page fault Anshuman Khandual
2017-01-30 17:51 ` Dave Hansen
2017-01-31 5:10 ` Anshuman Khandual
2017-01-31 17:54 ` Dave Hansen
2017-01-30 3:35 ` [RFC V2 12/12] mm: Tag VMA with VM_CDM flag explicitly during mbind(MPOL_BIND) Anshuman Khandual
2017-01-30 17:54 ` Dave Hansen
2017-01-31 4:36 ` Anshuman Khandual
2017-02-07 18:07 ` Dave Hansen
2017-02-08 14:13 ` Anshuman Khandual
2017-02-08 15:04 ` Jerome Glisse
2017-01-30 3:35 ` [DEBUG 13/21] powerpc/mm: Identify coherent device memory nodes during platform init Anshuman Khandual
2017-01-30 3:35 ` [DEBUG 14/21] powerpc/mm: Create numa nodes for hotplug memory Anshuman Khandual
2017-01-30 3:35 ` [DEBUG 15/21] powerpc/mm: Enable CONFIG_MOVABLE_NODE for PPC64 platform Anshuman Khandual
2017-01-30 3:35 ` [DEBUG 16/21] mm: Enable CONFIG_MOVABLE_NODE on powerpc Anshuman Khandual
2017-01-30 3:35 ` [DEBUG 17/21] mm: Export definition of 'zone_names' array through mmzone.h Anshuman Khandual
2017-01-30 3:35 ` [DEBUG 18/21] mm: Add debugfs interface to dump each node's zonelist information Anshuman Khandual
2017-01-30 3:36 ` [DEBUG 19/21] mm: Add migrate_virtual_range migration interface Anshuman Khandual
2017-01-30 3:36 ` [DEBUG 20/21] drivers: Add two drivers for coherent device memory tests Anshuman Khandual
2017-01-30 3:36 ` Anshuman Khandual [this message]
2017-01-31 5:48 ` [RFC V2 00/12] Define coherent device memory node Anshuman Khandual
2017-01-31 6:15 ` Jerome Glisse
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