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 v5 4/4] perf-stat: add documentation for -b option
Date: Tue, 15 Dec 2020 10:14:12 -0800 [thread overview]
Message-ID: <20201215181412.1730974-5-songliubraving@fb.com> (raw)
In-Reply-To: <20201215181412.1730974-1-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
prev parent reply other threads:[~2020-12-15 18:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-15 18:14 [PATCH v5 0/4] Introduce perf-stat -b for BPF programs Song Liu
2020-12-15 18:14 ` [PATCH v5 1/4] bpftool: add Makefile target bootstrap Song Liu
2020-12-15 18:14 ` [PATCH v5 2/4] perf: support build BPF skeletons with perf Song Liu
2020-12-28 12:55 ` Jiri Olsa
2020-12-28 17:33 ` Song Liu
2020-12-15 18:14 ` [PATCH v5 3/4] perf-stat: enable counting events for BPF programs Song Liu
2020-12-15 18:14 ` Song Liu [this message]
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=20201215181412.1730974-5-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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®