From: Andi Kleen <andi@firstfloor.org>
To: Jiri Olsa <jolsa@redhat.com>
Cc: linux-kernel@vger.kernel.org,
Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@elte.hu>, Paul Mackerras <paulus@samba.org>,
Corey Ashford <cjashfor@linux.vnet.ibm.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Andi Kleen <andi@firstfloor.org>, David Ahern <dsahern@gmail.com>,
Namhyung Kim <namhyung@kernel.org>
Subject: Re: [PATCHv2 00/14] perf diff: Factor diff command
Date: Thu, 27 Sep 2012 23:31:02 +0200 [thread overview]
Message-ID: <20120927213102.GO16230@one.firstfloor.org> (raw)
In-Reply-To: <1348744175-11115-1-git-send-email-jolsa@redhat.com>
On Thu, Sep 27, 2012 at 01:09:21PM +0200, Jiri Olsa wrote:
> hi,
> this is v2 of diff command changes proposed in here:
> https://lkml.org/lkml/2012/9/6/344
>
> It's now rebased on new hists hpp* interface plus few
> more additional changes.
FWIW I've been playing around with it a bit. It seems useful
both for scaling problems and likely for performance regression tracking too.
Some minor issues I ran into (but no show stoppers):
- The error messages for bad -c expressions could be better
- I found the requirement for no space after -c unintuitive.
- It would be nice to have support for doing the bucketizing per line
instead of per function. With a large function and/or inlining
it's sometimes hard to identify the actual problem
Acme recently added this for perf report.
I agree it would be good to merge.
-Andi
next prev parent reply other threads:[~2012-09-27 21:31 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-27 11:09 [PATCHv2 00/14] perf diff: Factor diff command Jiri Olsa
2012-09-27 11:09 ` [PATCH 01/14] perf hists: Add struct hists pointer to struct hist_entry Jiri Olsa
2012-09-27 11:09 ` [PATCH 02/14] perf diff: Refactor diff displacement possition info Jiri Olsa
2012-09-27 11:09 ` [PATCH 03/14] perf hists: Separate overhead and baseline columns Jiri Olsa
2012-09-28 5:56 ` Namhyung Kim
2012-10-02 13:32 ` Jiri Olsa
2012-09-27 11:09 ` [PATCH 04/14] perf tools: Removing hists pair argument from output path Jiri Olsa
2012-09-27 11:09 ` [PATCH 05/14] perf diff: Add -b option for perf diff to display paired entries only Jiri Olsa
2012-09-27 11:09 ` [PATCH 06/14] perf tool: Add hpp interface to enable/disable hpp column Jiri Olsa
2012-09-28 6:02 ` Namhyung Kim
2012-09-27 11:09 ` [PATCH 07/14] perf diff: Add ratio computation way to compare hist entries Jiri Olsa
2012-09-27 11:09 ` [PATCH 08/14] perf diff: Removing the total_period argument from output code Jiri Olsa
2012-09-27 11:09 ` [PATCH 09/14] perf diff: Add option to sort entries based on diff computation Jiri Olsa
2012-09-27 11:09 ` [PATCH 10/14] perf diff: Add weighted diff computation way to compare hist entries Jiri Olsa
2012-09-27 11:09 ` [PATCH 11/14] perf diff: Add -p option to display period values for " Jiri Olsa
2012-09-27 11:09 ` [PATCH 12/14] perf diff: Add -F option to display formula for computation Jiri Olsa
2012-09-27 11:09 ` [PATCH 13/14] perf diff: Include samples without symbol in overall stats Jiri Olsa
2012-09-27 11:09 ` [PATCH 14/14] perf diff: Display empty space for non paired samples Jiri Olsa
2012-10-04 6:06 ` Namhyung Kim
2012-09-27 21:31 ` Andi Kleen [this message]
2012-10-01 8:16 ` [PATCHv2 00/14] perf diff: Factor diff command Jiri Olsa
2012-10-02 16:30 ` Andi Kleen
2012-10-03 13:47 ` Arnaldo Carvalho de Melo
2012-10-03 16:18 ` Andi Kleen
2012-10-03 16:53 ` Andi Kleen
2012-10-03 18:06 ` Arnaldo Carvalho de Melo
2012-10-03 16:55 ` Andi Kleen
2012-10-03 17:01 ` Jiri Olsa
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