From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ian Rogers <irogers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH] perf kmem: Improve man page for record options
Date: Fri, 8 Oct 2021 16:10:25 -0300 [thread overview]
Message-ID: <YWCXoRis0BhKJCYC@kernel.org> (raw)
In-Reply-To: <20210922212031.485950-1-irogers@google.com>
Em Wed, Sep 22, 2021 at 02:20:31PM -0700, Ian Rogers escreveu:
> Since:
> https://lore.kernel.org/lkml/20200708183919.4141023-1-irogers@google.com/
> The output option works for 'perf kmem', however, it must appear after
> 'record'. This is different to 'stat' where '-i' for the input must
> appear before. Try to capture this complication in the man page.
Thanks, applied.
- Arnaldo
> Signed-off-by: Ian Rogers <irogers@google.com>
> ---
> tools/perf/Documentation/perf-kmem.txt | 13 ++++++++-----
> 1 file changed, 8 insertions(+), 5 deletions(-)
>
> diff --git a/tools/perf/Documentation/perf-kmem.txt b/tools/perf/Documentation/perf-kmem.txt
> index 85b8ac695c87..f378ac59353d 100644
> --- a/tools/perf/Documentation/perf-kmem.txt
> +++ b/tools/perf/Documentation/perf-kmem.txt
> @@ -8,22 +8,25 @@ perf-kmem - Tool to trace/measure kernel memory properties
> SYNOPSIS
> --------
> [verse]
> -'perf kmem' {record|stat} [<options>]
> +'perf kmem' [<options>] {record|stat}
>
> DESCRIPTION
> -----------
> There are two variants of perf kmem:
>
> - 'perf kmem record <command>' to record the kmem events
> - of an arbitrary workload.
> + 'perf kmem [<options>] record [<perf-record-options>] <command>' to
> + record the kmem events of an arbitrary workload. Additional 'perf
> + record' options may be specified after record, such as '-o' to
> + change the output file name.
>
> - 'perf kmem stat' to report kernel memory statistics.
> + 'perf kmem [<options>] stat' to report kernel memory statistics.
>
> OPTIONS
> -------
> -i <file>::
> --input=<file>::
> - Select the input file (default: perf.data unless stdin is a fifo)
> + For stat, select the input file (default: perf.data unless stdin is a
> + fifo)
>
> -f::
> --force::
> --
> 2.33.0.464.g1972c5931b-goog
--
- Arnaldo
prev parent reply other threads:[~2021-10-08 19:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-22 21:20 [PATCH] perf kmem: Improve man page for record options Ian Rogers
2021-10-08 19:10 ` Arnaldo Carvalho de Melo [this message]
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