From: Ingo Molnar <mingo@kernel.org>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Jiri Olsa <jolsa@redhat.com>, LKML <linux-kernel@vger.kernel.org>,
David Ahern <dsahern@gmail.com>, Minchan Kim <minchan@kernel.org>,
Joonsoo Kim <js1304@gmail.com>
Subject: Re: [RFC/PATCHSET 0/6] perf kmem: Implement page allocation analysis (v1)
Date: Thu, 12 Mar 2015 16:54:22 +0100 [thread overview]
Message-ID: <20150312155422.GA9779@gmail.com> (raw)
In-Reply-To: <20150312145837.GA1398@danjae>
* Namhyung Kim <namhyung@kernel.org> wrote:
> > I.e. something like this (mockup) output:
> >
> > SUMMARY (page allocator)
> > ========================
> >
> > Pages allocated+freed: 12,593 [ 51,630,080 bytes ]
> >
> > Pages allocated-only: 2,342 [ 1,235,010 bytes ]
> > Pages freed-only: 67 [ 135,311 bytes ]
> >
> > Page allocation failures : 0
>
> Looks a lot better!
>
> One thing I need to tell you is that the numbers are not pages but
> requests.
Yes, but in the MM code we tend to call larger order allocations
'pages' as well: higher order pages, such as a 2MB hugepage, or a 8K
order-1 page. So at least in MM-speak it should be OK to call them
'pages'.
But your call!
Thanks,
Ingo
next prev parent reply other threads:[~2015-03-12 15:54 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-12 7:32 [RFC/PATCHSET 0/6] perf kmem: Implement page allocation analysis (v1) Namhyung Kim
2015-03-12 7:32 ` [PATCH 1/6] perf kmem: Fix segfault when invalid sort key is given Namhyung Kim
2015-03-14 7:06 ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-03-12 7:32 ` [PATCH 2/6] perf kmem: Allow -v option Namhyung Kim
2015-03-14 7:06 ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-03-12 7:32 ` [PATCH 3/6] perf kmem: Fix alignment of slab result table Namhyung Kim
2015-03-14 7:07 ` [tip:perf/core] " tip-bot for Namhyung Kim
2015-03-12 7:32 ` [PATCH 4/6] perf kmem: Analyze page allocator events also Namhyung Kim
2015-03-12 11:01 ` Jiri Olsa
2015-03-12 15:11 ` Namhyung Kim
2015-03-12 7:32 ` [PATCH 5/6] perf kmem: Implement stat --page --caller Namhyung Kim
2015-03-12 7:32 ` [PATCH 6/6] perf kmem: Support sort keys on page analysis Namhyung Kim
2015-03-12 10:41 ` [RFC/PATCHSET 0/6] perf kmem: Implement page allocation analysis (v1) Ingo Molnar
2015-03-12 14:58 ` Namhyung Kim
2015-03-12 15:54 ` Ingo Molnar [this message]
2015-03-13 8:19 ` Namhyung Kim
2015-03-13 12:44 ` Ingo Molnar
2015-03-16 2:06 ` Namhyung Kim
2015-03-16 2:10 ` Namhyung Kim
2015-03-16 8:26 ` Ingo Molnar
2015-03-16 8:35 ` Namhyung Kim
2015-03-16 8:43 ` Ingo Molnar
2015-03-12 19:07 ` Arnaldo Carvalho de Melo
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