From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <andi@firstfloor.org>
Subject: perf: Add duration_time to perf stat
Date: Tue, 26 Mar 2019 15:18:19 -0700
Message-ID: <20190326221823.11518-1-andi@firstfloor.org>
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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.