From: Namhyung Kim <namhyung@kernel.org>
To: Ingo Molnar <mingo@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: Mon, 16 Mar 2015 11:10:35 +0900 [thread overview]
Message-ID: <20150316021035.GQ943@sejong> (raw)
In-Reply-To: <20150312145837.GA1398@danjae>
On Thu, Mar 12, 2015 at 11:58:37PM +0900, Namhyung Kim wrote:
> On Thu, Mar 12, 2015 at 11:41:19AM +0100, Ingo Molnar wrote:
> > So there's one thing that would be useful: to track pages allocated on
> > one node, but freed on another. Those kinds of allocation/free
> > patterns are especially expensive and might make sense to visualize.
>
> I think it can be done easily as slab analysis already contains the info.
Hmm.. it seems slab events provide the node info but page events
don't. Without it, I don't know which node a page is in so cannot
determine such cross-node alloc+free patterns.
Thanks,
Namhyung
next prev parent reply other threads:[~2015-03-16 2:16 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
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 [this message]
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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