From: Steven Rostedt <rostedt@goodmis.org>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
Ingo Molnar <mingo@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>,
linux-mm@kvack.org
Subject: Re: [PATCH 1/7] tracing, mm: Record pfn instead of pointer to struct page
Date: Fri, 27 Mar 2015 12:13:06 -0400 [thread overview]
Message-ID: <20150327121306.32ad44c1@gandalf.local.home> (raw)
In-Reply-To: <1427422087-17239-2-git-send-email-namhyung@kernel.org>
On Fri, 27 Mar 2015 11:08:01 +0900
Namhyung Kim <namhyung@kernel.org> wrote:
> The struct page is opaque for userspace tools, so it'd be better to save
> pfn in order to identify page frames.
>
> The textual output of $debugfs/tracing/trace file remains unchanged and
> only raw (binary) data format is changed - but thanks to libtraceevent,
> userspace tools which deal with the raw data (like perf and trace-cmd)
> can parse the format easily. So impact on the userspace will also be
> minimal.
>
> Based-on-patch-by: Joonsoo Kim <js1304@gmail.com>
> Acked-by: Ingo Molnar <mingo@kernel.org>
> Cc: Steven Rostedt <rostedt@goodmis.org>
> Cc: linux-mm@kvack.org
> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
> ---
Acked-by: Steven Rostedt <rostedt@goodmis.org>
-- Steve
--
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next prev parent reply other threads:[~2015-03-27 16:13 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-27 2:08 [PATCHSET 0/7] perf kmem: Implement page allocation analysis (v5) Namhyung Kim
2015-03-27 2:08 ` [PATCH 1/7] tracing, mm: Record pfn instead of pointer to struct page Namhyung Kim
2015-03-27 16:13 ` Steven Rostedt [this message]
2015-03-27 2:08 ` [PATCH 2/7] perf kmem: Analyze page allocator events also Namhyung Kim
2015-03-27 2:08 ` [PATCH 3/7] perf kmem: Implement stat --page --caller Namhyung Kim
2015-03-27 2:08 ` [PATCH 4/7] perf kmem: Support sort keys on page analysis Namhyung Kim
2015-03-27 2:08 ` [PATCH 5/7] perf kmem: Add --live option for current allocation stat Namhyung Kim
2015-03-27 2:08 ` [PATCH 6/7] perf kmem: Print gfp flags in human readable string Namhyung Kim
2015-03-27 2:08 ` [PATCH 7/7] perf kmem: Add kmem.default config option Namhyung Kim
2015-03-27 16:20 ` [PATCHSET 0/7] perf kmem: Implement page allocation analysis (v5) Arnaldo Carvalho de Melo
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