linux-kernel - Re: [PATCH 3/9] perf stat: Clear screen only if output file is a tty

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Message-ID: <CAM9d7cgAiAUqv0PZXMLjHqxfZO9u5NJgip=7Zd5QAJsBbzaOOw@mail.gmail.com>
Date:   Wed, 9 Nov 2022 10:02:41 -0800
From:   Namhyung Kim <namhyung@...nel.org>
To:     Ian Rogers <irogers@...gle.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>, Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-perf-users@...r.kernel.org,
        Kan Liang <kan.liang@...ux.intel.com>,
        Zhengjun Xing <zhengjun.xing@...ux.intel.com>,
        James Clark <james.clark@....com>
Subject: Re: [PATCH 3/9] perf stat: Clear screen only if output file is a tty

Hi Ian,

On Tue, Nov 8, 2022 at 3:16 PM Ian Rogers <irogers@...gle.com> wrote:
>
> On Mon, Nov 7, 2022 at 1:33 PM Namhyung Kim <namhyung@...nel.org> wrote:
> >
> > The --interval-clear option makes perf stat to clear the terminal at
> > each interval.  But it doesn't need to clear the screen when it saves
> > to a file.
>
> Would it be more intuitive to warn if interval-clear is specified with a file?

Makes sense, will change.

Thanks,
Namhyung