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Date:   Sun, 30 Aug 2020 23:23:32 -0700
From:   Andi Kleen <>
To:     Adrian Hunter <>
Cc:     Arnaldo Carvalho de Melo <>,
        Jiri Olsa <>,
        Alexey Budankov <>,
        Namhyung Kim <>,
Subject: Re: [PATCH 5/6] perf record: Add 'snapshot' control command

On Sat, Aug 29, 2020 at 01:50:14PM +0300, Adrian Hunter wrote:
> Add 'snapshot' control command to create an AUX area tracing snapshot the
> same as if sending SIGUSR2. The advantage of the FIFO is that access is
> governed by access to the FIFO.

How about the --switch-output SIGUSR2 switch? Could that be handled too?

Other than that it looks great. Thanks.


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