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Message-ID: <561E5939.90605@huawei.com>
Date: Wed, 14 Oct 2015 21:31:37 +0800
From: Yunlong Song <yunlong.song@huawei.com>
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To: Arnaldo Carvalho de Melo <acme@kernel.org>
CC: Ramkumar Ramachandra <artagnon@gmail.com>,
        Sriram Raghunathan <sriram.r@nokia.com>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Adrian Hunter <adrian.hunter@intel.com>, Jiri Olsa <jolsa@kernel.org>,
        Namhyung Kim <namhyung@kernel.org>, David Ahern <dsahern@gmail.com>,
        "Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
        Wang Nan <wangnan0@huawei.com>, Ingo Molnar <mingo@kernel.org>
Subject: Re: [PATCH 1/1] perf:Adding --list-opts to usage string
References: <1444282190-13605-1-git-send-email-sriram.r@nokia.com> <20151013145728.GT14409@kernel.org> <CALkWK0mzW6naDQm5KLL2QCu=2MsJf_Pk35WPo_LcxCfts9E3tw@mail.gmail.com> <561DBDF1.1020503@huawei.com> <20151014031043.GA3775@kernel.org>
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On 2015/10/14 11:10, Arnaldo Carvalho de Melo wrote:

> One doesn't show what options can be used, the other does, so there is
> an inconsistency, this and the fact that 'perf -h' outputs to stdout,
> 'perf stat -h' and the other builtins output to stderr. I think all
> should output to stdout, just like 'ls --help', what do you think?
> 
> - Arnaldo
>  

I think the reason that options do not show in 'perf -h' but show in
other builtins is not the different use of stdout or stderr. I will
send a patch to fix this instead.

-- 
Thanks,
Yunlong Song