From: tip-bot for Jiri Olsa <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: namhyung@kernel.org, hpa@zytor.com, dsahern@gmail.com,
ak@linux.intel.com, tglx@linutronix.de, jolsa@kernel.org,
acme@redhat.com, linux-kernel@vger.kernel.org,
alexander.shishkin@linux.intel.com, mingo@kernel.org,
peterz@infradead.org
Subject: [tip:perf/core] perf report: Add --stats option to display quick data statistics
Date: Wed, 10 Jan 2018 22:28:22 -0800 [thread overview]
Message-ID: <tip-a4a4d0a7a2b20f7880262de4f51685baaf693476@git.kernel.org> (raw)
In-Reply-To: <20180107160356.28203-12-jolsa@kernel.org>
Commit-ID: a4a4d0a7a2b20f7880262de4f51685baaf693476
Gitweb: https://git.kernel.org/tip/a4a4d0a7a2b20f7880262de4f51685baaf693476
Author: Jiri Olsa <jolsa@kernel.org>
AuthorDate: Sun, 7 Jan 2018 17:03:55 +0100
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 10 Jan 2018 12:00:56 -0300
perf report: Add --stats option to display quick data statistics
Add --stats option to display quick data statistics of event numbers,
without any further processing, like the one at the end of the perf
report -D command.
$ perf report --stat
Aggregated stats:
TOTAL events: 4566
MMAP events: 113
LOST events: 19
COMM events: 3
FORK events: 400
SAMPLE events: 3315
MMAP2 events: 32
FINISHED_ROUND events: 681
THREAD_MAP events: 1
CPU_MAP events: 1
TIME_CONV events: 1
I found this useful when hunting lost events for another change.
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 <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180107160356.28203-12-jolsa@kernel.org
[ Rename it to --stats, plural ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Documentation/perf-report.txt | 4 ++++
tools/perf/builtin-report.c | 26 +++++++++++++++++++++++++-
2 files changed, 29 insertions(+), 1 deletion(-)
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 1e02c4e..a7d11ef 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -457,6 +457,10 @@ include::itrace.txt[]
will be printed. Each entry is function name or file/line. Enabled by
default, disable with --no-inline.
+--stats::
+ Display overall events statistics without any further processing.
+ (like the one at the end of the perf report -D command)
+
include::callchain-overhead-calculation.txt[]
SEE ALSO
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 770bf8a..8e67a8c 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -62,6 +62,7 @@ struct report {
bool show_threads;
bool inverted_callchain;
bool mem_mode;
+ bool stats_mode;
bool header;
bool header_only;
bool nonany_branch_mode;
@@ -588,6 +589,20 @@ static void report__output_resort(struct report *rep)
ui_progress__finish();
}
+static void stats_setup(struct report *rep)
+{
+ memset(&rep->tool, 0, sizeof(rep->tool));
+ rep->tool.no_warn = true;
+}
+
+static int stats_print(struct report *rep)
+{
+ struct perf_session *session = rep->session;
+
+ perf_session__fprintf_nr_events(session, stdout);
+ return 0;
+}
+
static int __cmd_report(struct report *rep)
{
int ret;
@@ -619,12 +634,18 @@ static int __cmd_report(struct report *rep)
return ret;
}
+ if (rep->stats_mode)
+ stats_setup(rep);
+
ret = perf_session__process_events(session);
if (ret) {
ui__error("failed to process sample\n");
return ret;
}
+ if (rep->stats_mode)
+ return stats_print(rep);
+
report__warn_kptr_restrict(rep);
evlist__for_each_entry(session->evlist, pos)
@@ -781,6 +802,7 @@ int cmd_report(int argc, const char **argv)
OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"),
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
+ OPT_BOOLEAN(0, "stats", &report.stats_mode, "Display event stats"),
OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
"file", "vmlinux pathname"),
OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
@@ -1042,6 +1064,8 @@ repeat:
report.tool.show_feat_hdr = SHOW_FEAT_HEADER;
if (report.show_full_info)
report.tool.show_feat_hdr = SHOW_FEAT_HEADER_FULL_INFO;
+ if (report.stats_mode)
+ use_browser = 0;
if (strcmp(input_name, "-") != 0)
setup_browser(true);
@@ -1064,7 +1088,7 @@ repeat:
ret = 0;
goto error;
}
- } else if (use_browser == 0 && !quiet) {
+ } else if (use_browser == 0 && !quiet && !report.stats_mode) {
fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
stdout);
}
next prev parent reply other threads:[~2018-01-11 6:31 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-07 16:03 [PATCH 00/12] perf: Assorted fixes Jiri Olsa
2018-01-07 16:03 ` [PATCH 01/12] perf tools: Enable LIBBABELTRACE by default Jiri Olsa
2018-01-08 15:17 ` Arnaldo Carvalho de Melo
2018-01-08 15:20 ` Arnaldo Carvalho de Melo
2018-01-08 15:24 ` Arnaldo Carvalho de Melo
2018-01-08 17:11 ` Jiri Olsa
2018-01-08 17:16 ` Jiri Olsa
2018-01-09 9:26 ` [PATCH] perf build: Display EXTRA features for VF=1 build Jiri Olsa
2018-01-19 10:15 ` Jiri Olsa
2018-01-19 12:43 ` Arnaldo Carvalho de Melo
2018-01-24 11:23 ` [tip:perf/core] " tip-bot for Jiri Olsa
2018-01-11 6:24 ` [tip:perf/core] perf tools: Enable LIBBABELTRACE by default tip-bot for Jiri Olsa
2018-01-07 16:03 ` [PATCH 02/12] perf tools: Display perf_event_attr::namespaces debug info Jiri Olsa
2018-01-11 6:24 ` [tip:perf/core] " tip-bot for Jiri Olsa
2018-01-07 16:03 ` [PATCH 03/12] perf: Allocate context task_ctx_data for child event Jiri Olsa
2018-01-08 12:14 ` Peter Zijlstra
2018-01-11 6:24 ` [tip:perf/core] " tip-bot for Jiri Olsa
2018-01-07 16:03 ` [PATCH 04/12] perf: Add sample_id to PERF_RECORD_ITRACE_START event comment Jiri Olsa
2018-01-11 6:25 ` [tip:perf/core] " tip-bot for Jiri Olsa
2018-01-07 16:03 ` [PATCH 05/12] perf: Make perf_callchain function static Jiri Olsa
2018-01-11 6:25 ` [tip:perf/core] " tip-bot for Jiri Olsa
2018-01-07 16:03 ` [PATCH 06/12] perf: Return empty callchain instead of NULL Jiri Olsa
2018-01-08 12:15 ` Peter Zijlstra
2018-01-11 6:26 ` [tip:perf/core] " tip-bot for Jiri Olsa
2018-01-07 16:03 ` [PATCH 07/12] perf: Update PERF_RECORD_MISC_* comment for perf_event_header::misc bit 13 Jiri Olsa
2018-01-11 6:26 ` [tip:perf/core] " tip-bot for Jiri Olsa
2018-01-07 16:03 ` [PATCH 08/12] perf script: Add support to display sample misc field Jiri Olsa
2018-01-11 6:27 ` [tip:perf/core] " tip-bot for Jiri Olsa
2018-01-07 16:03 ` [PATCH 09/12] perf script: Add support to display lost events Jiri Olsa
2018-01-10 15:40 ` Arnaldo Carvalho de Melo
2018-01-10 15:44 ` Jiri Olsa
2018-01-11 6:27 ` [tip:perf/core] " tip-bot for Jiri Olsa
2018-01-07 16:03 ` [PATCH 10/12] perf tools: Make the tool's warning messages optional Jiri Olsa
2018-01-11 6:27 ` [tip:perf/core] " tip-bot for Jiri Olsa
2018-01-07 16:03 ` [PATCH 11/12] perf report: Add --stat option to display quick data statistics Jiri Olsa
2018-01-11 6:28 ` tip-bot for Jiri Olsa [this message]
2018-01-07 16:03 ` [PATCH 12/12] perf report: Add --task option to display monitored tasks Jiri Olsa
2018-01-08 15:55 ` Arnaldo Carvalho de Melo
2018-01-08 16:03 ` Arnaldo Carvalho de Melo
2018-01-09 1:56 ` Namhyung Kim
2018-01-09 9:15 ` Jiri Olsa
2018-01-09 13:05 ` Arnaldo Carvalho de Melo
2018-01-09 13:27 ` Jiri Olsa
2018-01-11 6:29 ` [tip:perf/core] perf report: Add --tasks " tip-bot for Jiri Olsa
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=tip-a4a4d0a7a2b20f7880262de4f51685baaf693476@git.kernel.org \
--to=tipbot@zytor.com \
--cc=acme@redhat.com \
--cc=ak@linux.intel.com \
--cc=alexander.shishkin@linux.intel.com \
--cc=dsahern@gmail.com \
--cc=hpa@zytor.com \
--cc=jolsa@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tip-commits@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=namhyung@kernel.org \
--cc=peterz@infradead.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).