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From: Vlastimil Babka <vbabka@suse.cz>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	Ingo Molnar <mingo@redhat.com>, Mel Gorman <mgorman@suse.de>,
	David Rientjes <rientjes@google.com>
Subject: Re: [PATCH 1/3] mm, compaction: export tracepoints status strings to userspace
Date: Mon, 31 Aug 2015 17:27:14 +0200	[thread overview]
Message-ID: <55E47252.7030201@suse.cz> (raw)
In-Reply-To: <20150831105538.2cf4b3ae@gandalf.local.home>

On 08/31/2015 04:55 PM, Steven Rostedt wrote:
> On Thu, 27 Aug 2015 17:24:02 +0200
> Vlastimil Babka <vbabka@suse.cz> wrote:
>
>> Some compaction tracepoints convert the integer return values to strings using
>> the compaction_status_string array. This works for in-kernel printing, but not
>> userspace trace printing of raw captured trace such as via trace-cmd report.
>>
>> This patch converts the private array to appropriate tracepoint macros that
>> result in proper userspace support.
>>
>> trace-cmd output before:
>> transhuge-stres-4235  [000]   453.149280: mm_compaction_finished: node=0
>>    zone=ffffffff81815d7a order=9 ret=
>>
>> after:
>> transhuge-stres-4235  [000]   453.149280: mm_compaction_finished: node=0
>>    zone=ffffffff81815d7a order=9 ret=partial
>>
>
> Reviewed-by: Steven Rostedt <rostedt@goodmis.org>

Thanks!

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WARNING: multiple messages have this Message-ID (diff)
From: Vlastimil Babka <vbabka@suse.cz>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	Ingo Molnar <mingo@redhat.com>, Mel Gorman <mgorman@suse.de>,
	David Rientjes <rientjes@google.com>
Subject: Re: [PATCH 1/3] mm, compaction: export tracepoints status strings to userspace
Date: Mon, 31 Aug 2015 17:27:14 +0200	[thread overview]
Message-ID: <55E47252.7030201@suse.cz> (raw)
In-Reply-To: <20150831105538.2cf4b3ae@gandalf.local.home>

On 08/31/2015 04:55 PM, Steven Rostedt wrote:
> On Thu, 27 Aug 2015 17:24:02 +0200
> Vlastimil Babka <vbabka@suse.cz> wrote:
>
>> Some compaction tracepoints convert the integer return values to strings using
>> the compaction_status_string array. This works for in-kernel printing, but not
>> userspace trace printing of raw captured trace such as via trace-cmd report.
>>
>> This patch converts the private array to appropriate tracepoint macros that
>> result in proper userspace support.
>>
>> trace-cmd output before:
>> transhuge-stres-4235  [000]   453.149280: mm_compaction_finished: node=0
>>    zone=ffffffff81815d7a order=9 ret=
>>
>> after:
>> transhuge-stres-4235  [000]   453.149280: mm_compaction_finished: node=0
>>    zone=ffffffff81815d7a order=9 ret=partial
>>
>
> Reviewed-by: Steven Rostedt <rostedt@goodmis.org>

Thanks!


  reply	other threads:[~2015-08-31 15:27 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-27 15:24 [PATCH 1/3] mm, compaction: export tracepoints status strings to userspace Vlastimil Babka
2015-08-27 15:24 ` Vlastimil Babka
2015-08-27 15:24 ` [PATCH 2/3] mm, compaction: export tracepoints zone names " Vlastimil Babka
2015-08-27 15:24   ` Vlastimil Babka
2015-08-31 14:58   ` Steven Rostedt
2015-08-31 14:58     ` Steven Rostedt
2015-08-31 15:02     ` Vlastimil Babka
2015-08-31 15:02       ` Vlastimil Babka
2015-08-31 15:13       ` Steven Rostedt
2015-08-31 15:13         ` Steven Rostedt
2015-08-31 15:32   ` Steven Rostedt
2015-08-31 15:32     ` Steven Rostedt
2015-08-27 15:24 ` [PATCH 3/3] mm, compaction: disginguish contended status in tracepoint Vlastimil Babka
2015-09-07  5:53   ` Joonsoo Kim
2015-09-07  5:53     ` Joonsoo Kim
2015-09-08 16:29     ` Vlastimil Babka
2015-09-08 16:29       ` Vlastimil Babka
2015-08-31 14:55 ` [PATCH 1/3] mm, compaction: export tracepoints status strings to userspace Steven Rostedt
2015-08-31 14:55   ` Steven Rostedt
2015-08-31 15:27   ` Vlastimil Babka [this message]
2015-08-31 15:27     ` Vlastimil Babka

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