linux-kernel - Re: [PATCH] perf tools: Add --debug-file option to redirect debug output

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Message-ID: <ZWUS1M0HM7WZXwML@kernel.org>
Date:   Mon, 27 Nov 2023 19:06:12 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Yang Jihong <yangjihong1@...wei.com>
Cc:     Jiri Olsa <jolsa@...nel.org>, peterz@...radead.org,
        mingo@...hat.com, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, namhyung@...nel.org,
        irogers@...gle.com, adrian.hunter@...el.com,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf tools: Add --debug-file option to redirect debug
 output

Em Tue, Oct 31, 2023 at 12:45:42PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Tue, Oct 31, 2023 at 10:55:23AM +0000, Yang Jihong escreveu:
> > Currently, debug messages is output to stderr, add --debug-file option to
> > support redirection to a specified file.
>  
> >   # perf --debug-file /tmp/perf.log record -v true
> >   [ perf record: Woken up 1 times to write data ]
> >   [ perf record: Captured and wrote 0.013 MB perf.data (26 samples) ]
> >   # cat /tmp/perf.log
> >   DEBUGINFOD_URLS=
> >   Using CPUID GenuineIntel-6-3E-4
> 
> Ok, reusing debug_set_file() that was introduced to be used in the
> 'perf daemon' subcommand.
> 
> Acked-by: Arnaldo Carvalho de Melo <acme@...hat.com>

Thanks, applied to perf-tools-next.

- Arnaldo