linux-kernel - Re: perf: Add duration

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Message-ID: <20190327195137.GC17944@krava>
Date:   Wed, 27 Mar 2019 20:51:37 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     Andi Kleen <andi@...stfloor.org>
Cc:     acme@...nel.org, jolsa@...nel.org, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org
Subject: Re: perf: Add duration_time to perf stat

On Tue, Mar 26, 2019 at 03:18:19PM -0700, Andi Kleen wrote:
> Currently it's not possible to get the wall clock time of a measurement
> in CSV mode output, it's only in the non CSV perf stat output.
> Often this is needed to normalize event counts to time.
> 
> Add a new duration_time event that can be specified and reports
> the wall clock time in ns.

Acked-by: Jiri Olsa <jolsa@...hat.com>

thanks,
jirka