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Date: Fri, 8 Oct 2021 16:10:25 -0300 From: Arnaldo Carvalho de Melo <acme@...nel.org> To: Ian Rogers <irogers@...gle.com> Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, Mark Rutland <mark.rutland@....com>, Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...nel.org>, linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org, Stephane Eranian <eranian@...gle.com> Subject: Re: [PATCH] perf kmem: Improve man page for record options 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@...gle.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
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