From: Song Liu <songliubraving@fb.com>
To: <linux-kernel@vger.kernel.org>
Cc: <acme@kernel.org>, <peterz@infradead.org>, <mingo@redhat.com>,
<alexander.shishkin@linux.intel.com>, <namhyung@kernel.org>,
<mark.rutland@arm.com>, <jolsa@redhat.com>, <kernel-team@fb.com>,
Song Liu <songliubraving@fb.com>
Subject: [PATCH v6 4/4] perf-stat: add documentation for -b option
Date: Mon, 28 Dec 2020 09:40:54 -0800 [thread overview]
Message-ID: <20201228174054.907740-5-songliubraving@fb.com> (raw)
In-Reply-To: <20201228174054.907740-1-songliubraving@fb.com>
Add documentation to perf-stat -b option, which stats event for BPF
programs.
Signed-off-by: Song Liu <songliubraving@fb.com>
---
tools/perf/Documentation/perf-stat.txt | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index 5d4a673d7621a..15b9a646e853d 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -75,6 +75,20 @@ report::
--tid=<tid>::
stat events on existing thread id (comma separated list)
+-b::
+--bpf-prog::
+ stat events on existing bpf program id (comma separated list),
+ requiring root righs. For example:
+
+ # perf stat -e cycles,instructions --bpf-prog 17247 --timeout 1000
+
+ Performance counter stats for 'BPF program(s) 17247':
+
+ 85,967 cycles
+ 28,982 instructions # 0.34 insn per cycle
+
+ 1.102235068 seconds time elapsed
+
ifdef::HAVE_LIBPFM[]
--pfm-events events::
Select a PMU event using libpfm4 syntax (see http://perfmon2.sf.net)
--
2.24.1
next prev parent reply other threads:[~2020-12-28 17:42 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-28 17:40 [PATCH v6 0/4] Introduce perf-stat -b for BPF programs Song Liu
2020-12-28 17:40 ` [PATCH v6 1/4] bpftool: add Makefile target bootstrap Song Liu
2020-12-28 17:40 ` [PATCH v6 2/4] perf: support build BPF skeletons with perf Song Liu
2020-12-29 7:01 ` Namhyung Kim
2020-12-29 11:48 ` Arnaldo Carvalho de Melo
2020-12-29 17:14 ` Song Liu
2020-12-29 18:16 ` Arnaldo Carvalho de Melo
2020-12-28 17:40 ` [PATCH v6 3/4] perf-stat: enable counting events for BPF programs Song Liu
2020-12-28 20:11 ` Arnaldo Carvalho de Melo
2020-12-28 23:43 ` Song Liu
2020-12-29 5:53 ` Song Liu
2020-12-29 15:15 ` Arnaldo Carvalho de Melo
2020-12-29 18:42 ` Song Liu
2020-12-29 18:48 ` Arnaldo Carvalho de Melo
2020-12-29 19:11 ` Song Liu
2020-12-29 19:18 ` Arnaldo Carvalho de Melo
2020-12-29 19:23 ` Arnaldo Carvalho de Melo
2020-12-29 19:32 ` Arnaldo Carvalho de Melo
2020-12-29 21:40 ` Song Liu
2020-12-29 7:22 ` Namhyung Kim
2020-12-29 17:46 ` Song Liu
2020-12-29 17:59 ` Song Liu
2020-12-28 17:40 ` Song Liu [this message]
2020-12-29 7:24 ` [PATCH v6 4/4] perf-stat: add documentation for -b option Namhyung Kim
2020-12-29 16:59 ` Song Liu
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=20201228174054.907740-5-songliubraving@fb.com \
--to=songliubraving@fb.com \
--cc=acme@kernel.org \
--cc=alexander.shishkin@linux.intel.com \
--cc=jolsa@redhat.com \
--cc=kernel-team@fb.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=mingo@redhat.com \
--cc=namhyung@kernel.org \
--cc=peterz@infradead.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.