From: tip-bot for Jiri Olsa <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: andi@firstfloor.org, acme@redhat.com, frederic@kernel.org,
alexander.shishkin@linux.intel.com, mingo@kernel.org,
jolsa@kernel.org, linux-kernel@vger.kernel.org,
dsahern@gmail.com, peterz@infradead.org, eranian@google.com,
milian.wolff@kdab.com, namhyung@kernel.org, hpa@zytor.com,
tglx@linutronix.de
Subject: [tip:perf/urgent] perf stat: Add --interval-clear option
Date: Wed, 13 Jun 2018 23:21:46 -0700 [thread overview]
Message-ID: <tip-9660e08ee8cbc94ac835f2c30576c6e51fbece8f@git.kernel.org> (raw)
In-Reply-To: <20180606221513.11302-4-jolsa@kernel.org>
Commit-ID: 9660e08ee8cbc94ac835f2c30576c6e51fbece8f
Gitweb: https://git.kernel.org/tip/9660e08ee8cbc94ac835f2c30576c6e51fbece8f
Author: Jiri Olsa <jolsa@kernel.org>
AuthorDate: Thu, 7 Jun 2018 00:15:06 +0200
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 7 Jun 2018 15:53:36 -0300
perf stat: Add --interval-clear option
Adding --interval-clear option to clear the screen before next interval.
Committer testing:
# perf stat -I 1000 --interval-clear
And, as expected, it behaves almost like:
# watch -n 0 perf stat -a sleep 1
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20180606221513.11302-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Documentation/perf-stat.txt | 3 +++
tools/perf/builtin-stat.c | 11 +++++++++--
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index 5dfe102fb5b5..b10a90b6a718 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -178,6 +178,9 @@ Print count deltas for fixed number of times.
This option should be used together with "-I" option.
example: 'perf stat -I 1000 --interval-count 2 -e cycles -a'
+--interval-clear::
+Clear the screen before next interval.
+
--timeout msecs::
Stop the 'perf stat' session and print count deltas after N milliseconds (minimum: 10 ms).
This option is not supported with the "-I" option.
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 096ccb25c11f..f1532e3ac7d7 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -65,6 +65,7 @@
#include "util/tool.h"
#include "util/string2.h"
#include "util/metricgroup.h"
+#include "util/top.h"
#include "asm/bug.h"
#include <linux/time64.h>
@@ -173,6 +174,7 @@ static struct cpu_map *aggr_map;
static aggr_get_id_t aggr_get_id;
static bool append_file;
static bool interval_count;
+static bool interval_clear;
static const char *output_name;
static int output_fd;
static int print_free_counters_hint;
@@ -1704,9 +1706,12 @@ static void print_interval(char *prefix, struct timespec *ts)
FILE *output = stat_config.output;
static int num_print_interval;
+ if (interval_clear)
+ puts(CONSOLE_CLEAR);
+
sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, csv_sep);
- if (num_print_interval == 0 && !csv_output) {
+ if ((num_print_interval == 0 && !csv_output) || interval_clear) {
switch (stat_config.aggr_mode) {
case AGGR_SOCKET:
fprintf(output, "# time socket cpus");
@@ -1738,7 +1743,7 @@ static void print_interval(char *prefix, struct timespec *ts)
}
}
- if (num_print_interval == 0 && metric_only)
+ if ((num_print_interval == 0 && metric_only) || interval_clear)
print_metric_headers(" ", true);
if (++num_print_interval == 25)
num_print_interval = 0;
@@ -2057,6 +2062,8 @@ static const struct option stat_options[] = {
"(overhead is possible for values <= 100ms)"),
OPT_INTEGER(0, "interval-count", &stat_config.times,
"print counts for fixed number of times"),
+ OPT_BOOLEAN(0, "interval-clear", &interval_clear,
+ "clear screen in between new interval"),
OPT_UINTEGER(0, "timeout", &stat_config.timeout,
"stop workload and print counts after a timeout period in ms (>= 10ms)"),
OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode,
next prev parent reply other threads:[~2018-06-14 6:22 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-06 22:15 [RFC 00/10] perf: Add cputime events/metrics Jiri Olsa
2018-06-06 22:15 ` [PATCH 01/10] perf tools: Uniquify the event name if there's no other matched event Jiri Olsa
2018-06-06 23:19 ` Andi Kleen
2018-06-07 6:22 ` Jiri Olsa
2018-06-07 16:09 ` Stephane Eranian
2018-06-08 0:06 ` Jiri Olsa
2018-06-06 22:15 ` [PATCH 02/10] perf tools: Fix error index for pmu event parser Jiri Olsa
2018-06-07 18:53 ` Arnaldo Carvalho de Melo
2018-06-14 6:21 ` [tip:perf/urgent] " tip-bot for Jiri Olsa
2018-06-06 22:15 ` [PATCH 03/10] perf stat: Add --interval-clear option Jiri Olsa
2018-06-07 18:57 ` Arnaldo Carvalho de Melo
2018-06-14 6:21 ` tip-bot for Jiri Olsa [this message]
2018-06-06 22:15 ` [PATCH 04/10] perf stat: Use only color_fprintf call in print_metric_only Jiri Olsa
2018-06-07 19:00 ` Arnaldo Carvalho de Melo
2018-06-14 6:22 ` [tip:perf/urgent] " tip-bot for Jiri Olsa
2018-06-06 22:15 ` [PATCH 05/10] perf stat: Fix metric column display Jiri Olsa
2018-06-07 19:00 ` Arnaldo Carvalho de Melo
2018-06-14 6:22 ` [tip:perf/urgent] perf stat: Fix metric column header display alignment tip-bot for Jiri Olsa
2018-06-06 22:15 ` [PATCH 06/10] perf stat: Allow to specify specific metric column len Jiri Olsa
2018-06-14 6:23 ` [tip:perf/urgent] " tip-bot for Jiri Olsa
2018-06-06 22:15 ` [PATCH 07/10] perf stat: Add event parsing error handling to add_default_attributes Jiri Olsa
2018-06-07 19:04 ` Arnaldo Carvalho de Melo
2018-06-07 19:05 ` Arnaldo Carvalho de Melo
2018-06-14 6:23 ` [tip:perf/urgent] " tip-bot for Jiri Olsa
2018-06-06 22:15 ` [PATCH 08/10] perf/cputime: Add cputime pmu Jiri Olsa
2018-06-06 22:15 ` [PATCH 09/10] perf/cputime: Don't stop idle tick if there's live cputime event Jiri Olsa
2018-06-07 15:45 ` Andi Kleen
2018-06-07 16:01 ` Stephane Eranian
2018-06-08 0:12 ` Jiri Olsa
2018-06-06 22:15 ` [PATCH 10/10] perf stat: Add cputime metric support Jiri Olsa
2018-06-06 23:10 ` [RFC 00/10] perf: Add cputime events/metrics Andi Kleen
2018-09-26 14:44 ` Milian Wolff
2018-09-26 21:48 ` Jiri Olsa
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