linux-kernel - Re: [PATCH 3/9] perf kmem: Analyze page allocator events also

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Message-ID: <20150413132100.GC3200@kernel.org>
Date:	Mon, 13 Apr 2015 10:21:00 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Jiri Olsa <jolsa@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Minchan Kim <minchan@...nel.org>,
	Joonsoo Kim <js1304@...il.com>, linux-mm@...ck.org
Subject: Re: [PATCH 3/9] perf kmem: Analyze page allocator events also

Em Mon, Apr 13, 2015 at 03:59:24PM +0900, Namhyung Kim escreveu:
> On Fri, Apr 10, 2015 at 06:10:49PM -0300, Arnaldo Carvalho de Melo wrote:
> > Em Fri, Apr 10, 2015 at 06:06:29PM -0300, Arnaldo Carvalho de Melo escreveu:
> > > Em Mon, Apr 06, 2015 at 02:36:10PM +0900, Namhyung Kim escreveu:
> > > > If none of these --slab nor --page is specified, --slab is implied.

> > > >   # perf kmem stat --page --alloc --line 10

> > > Hi, applied the first patch, the kernel one, reboot with that kernel:

> > <SNIP>

> > > [root@...andy ~]#

> > > What am I missing?

> > Argh, I was expecting to read just what is in that cset and be able to
> > reproduce the results, had to go back to the [PATCH 0/0] cover letter to
> > figure out that I need to run:

> > perf kmem record --page sleep 5

> Right.  Maybe I need to change to print warning if no events found
> with option.

Ok!

> Hmm.. looks like you ran some old version.  Please check v6! :)

Thanks, will do,

- Arnaldo
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