linux-kernel - Re: [PATCH 1/2] trace_stat: keep original order

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Message-ID: <49CAE64B.4020707@cn.fujitsu.com>
Date:	Thu, 26 Mar 2009 10:19:55 +0800
From:	Lai Jiangshan <laijs@...fujitsu.com>
To:	Steven Rostedt <srostedt@...hat.com>
CC:	Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] trace_stat: keep original order

Steven Rostedt wrote:
> On Wed, 2009-03-25 at 16:58 +0800, Lai Jiangshan wrote:
>> Impact: make trace_stat files show items with the original order
>>
>> trace_stat tracer reverse the items, it makes the output
>> looks a little ugly.
>>
>> Example, when we read trace_stat/workqueues, we get cpu#7's stat.
>> at first, and then cpu#6... cpu#0.
>>
> 
> This doesn't reverse the order of the annotated branch profiler, does
> it?
> 

The annotated ftrace_branch_data are orderless. So it's OK
with or without this fix.

(From code, not test) If this fix applied,
__start_annotated_branch_profile is shown at the first, and then
__start_annotated_branch_profile + 1... and
__stop_annotated_branch_profile is shown at the last.

Lai

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