From: Ingo Molnar <mingo@kernel.org>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Jiri Olsa <jolsa@redhat.com>, LKML <linux-kernel@vger.kernel.org>,
David Ahern <dsahern@gmail.com>
Subject: Re: [PATCH 1/4] perf tools: Improve ambiguous option help message
Date: Sun, 25 Oct 2015 09:48:35 +0100 [thread overview]
Message-ID: <20151025084834.GB24337@gmail.com> (raw)
In-Reply-To: <1445701767-12731-1-git-send-email-namhyung@kernel.org>
* Namhyung Kim <namhyung@kernel.org> wrote:
> Currently if an option name is ambiguous it only prints first two
> matched option names but no help. It'd be better it could show all
> possible names and help messages too.
>
> Before:
> $ perf report --show
> Error: Ambiguous option: show (could be --show-total-period or
> --show-ref-call-graph)
> Usage: perf report [<options>]
>
> After:
> $ perf report --show
> Error: Ambiguous option: show (could be --show-total-period or
> --show-ref-call-graph)
> Usage: perf report [<options>]
>
> -n, --show-nr-samples
> Show a column with the number of samples
> --showcpuutilization
> Show sample percentage for different cpu modes
> -I, --show-info Display extended information about perf.data file
> --show-total-period
> Show a column with the sum of periods
> --show-ref-call-graph
> Show callgraph from reference event
Very nice touch!
Acked-by: Ingo Molnar <mingo@kernel.org>
Thanks,
Ingo
next prev parent reply other threads:[~2015-10-25 8:48 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-24 15:49 [PATCH 1/4] perf tools: Improve ambiguous option help message Namhyung Kim
2015-10-24 15:49 ` [PATCH 2/4] perf report: Rename to --show-cpu-utilization Namhyung Kim
2015-10-25 8:59 ` Ingo Molnar
2015-10-29 9:39 ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-10-24 15:49 ` [PATCH 3/4] perf tools: Setup pager when printing usage and help Namhyung Kim
2015-10-25 9:04 ` Ingo Molnar
2015-10-29 9:40 ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-10-24 15:49 ` [PATCH 4/4] perf tools: Introduce usage_with_options_msg() Namhyung Kim
2015-10-26 17:13 ` Arnaldo Carvalho de Melo
2015-10-26 23:13 ` 平松雅巳 / HIRAMATU，MASAMI
2015-10-27 12:29 ` Arnaldo Carvalho de Melo
2015-10-29 9:40 ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-10-25 8:48 ` Ingo Molnar [this message]
2015-10-29 9:39 ` [tip:perf/core] perf tools: Improve ambiguous option help message tip-bot for Namhyung Kim
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