From: Jiri Olsa <jolsa@redhat.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: acme@kernel.org, namhyung@kernel.org, eranian@google.com,
linux-kernel@vger.kernel.org, Andi Kleen <ak@linux.intel.com>
Subject: Re: [PATCH 04/11] perf, tools, report: Add infrastructure for a cycles histogram
Date: Mon, 1 Jun 2015 16:19:41 +0200 [thread overview]
Message-ID: <20150601141941.GA14991@krava.redhat.com> (raw)
In-Reply-To: <1432749114-904-5-git-send-email-andi@firstfloor.org>
On Wed, May 27, 2015 at 10:51:47AM -0700, Andi Kleen wrote:
> From: Andi Kleen <ak@linux.intel.com>
>
> This adds the basic infrastructure to keep track of cycle counts
> per basic block for annotate. We allocate an array similar to the
> normal accounting, and then account branch cycles there.
>
> We handle two cases:
> cycles per basic block with start and cycles per branch
> (these are later used for either IPC or just cycles per BB)
>
> In the start case we cannot handle overlaps, so always the longest
> basic block wins.
>
> For the cycles per branch case everything is accurately accounted.
>
> v2: Remove unnecessary checks. Slight restructure. Move
> symbol__get_annotation to another patch. Move histogram allocation.
> Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
thanks,
jirka
next prev parent reply other threads:[~2015-06-01 14:19 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-27 17:51 Cycles annotation support for perf tools v2 Andi Kleen
2015-05-27 17:51 ` [PATCH 01/11] perf, tools: Add tools support for cycles, weight branch_info field Andi Kleen
2015-06-01 14:16 ` Jiri Olsa
2015-05-27 17:51 ` [PATCH 02/11] perf, tools, report: Add flag for non ANY branch mode Andi Kleen
2015-06-01 14:16 ` Jiri Olsa
2015-05-27 17:51 ` [PATCH 03/11] perf, tools: Add symbol__get_annotation Andi Kleen
2015-05-28 9:32 ` [tip:perf/core] perf annotation: " tip-bot for Andi Kleen
2015-06-01 14:17 ` [PATCH 03/11] perf, tools: " Jiri Olsa
2015-05-27 17:51 ` [PATCH 04/11] perf, tools, report: Add infrastructure for a cycles histogram Andi Kleen
2015-06-01 14:19 ` Jiri Olsa [this message]
2015-05-27 17:51 ` [PATCH 05/11] perf, tools, report: Add processing for cycle histograms Andi Kleen
2015-06-01 14:10 ` Jiri Olsa
2015-05-27 17:51 ` [PATCH 06/11] perf, tools: Compute IPC and basic block cycles for annotate Andi Kleen
2015-05-27 17:51 ` [PATCH 07/11] perf, tools, annotate: Finally display IPC and cycle accounting Andi Kleen
2015-05-27 17:51 ` [PATCH 08/11] perf, tools, report: Move branch option parsing to own file Andi Kleen
2015-05-28 9:32 ` [tip:perf/core] perf tools: " tip-bot for Andi Kleen
2015-06-01 14:20 ` [PATCH 08/11] perf, tools, report: " Jiri Olsa
2015-05-27 17:51 ` [PATCH 09/11] perf, tools, top: Add branch annotation code to top Andi Kleen
2015-05-27 17:51 ` [PATCH 10/11] perf, tools, report: Display cycles in branch sort mode Andi Kleen
2015-05-27 17:51 ` [PATCH 11/11] test patch: Add fake branch cycles to input data in report/top Andi Kleen
2015-06-01 14:21 ` Cycles annotation support for perf tools v2 Jiri Olsa
2015-06-01 14:43 ` Arnaldo Carvalho de Melo
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