From: Milian Wolff <milian.wolff@kdab.com>
To: Manuel Selva <selva.manuel@gmail.com>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: memory consumption information in perf stat?
Date: Fri, 29 Jan 2016 13:30:14 +0100 [thread overview]
Message-ID: <9959973.iQGH6OQWBz@agathebauer> (raw)
In-Reply-To: <56AA7219.4020803@gmail.com>
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On Donnerstag, 28. Januar 2016 20:55:05 CET Manuel Selva wrote:
> Hi,
>
> I am not sure perf stat can compute such information because it mainly
> count events (hardware or kernel). To compute the peak heap size, perf
> stat would require the knowledge of all heap memory allocations.
Right, that is why I compared it to `time -v` which only gives the RSS as a
ballpark figure which is often useful already to compare before/after. And if
`time -v` can do it, I'd say `perf stat` should be able to do it as well? To
track individual heap allocations, I'm using my heaptrack tool anyways. This
request is more about making `perf stat` more useful by adding another side of
the performance coin to it.
--
Milian Wolff | milian.wolff@kdab.com | Software Engineer
KDAB (Deutschland) GmbH&Co KG, a KDAB Group company
Tel: +49-30-521325470
KDAB - The Qt Experts
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next prev parent reply other threads:[~2016-01-29 12:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-28 17:11 memory consumption information in perf stat? Milian Wolff
2016-01-28 19:55 ` Manuel Selva
2016-01-29 12:30 ` Milian Wolff [this message]
2016-02-04 8:51 ` Taeung Song
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