linux-kernel - Re: [PATCHv3 00/19] perf tools: Factor ordered samples queue

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Date:	Mon, 21 Jul 2014 15:58:57 +0300
From:	Adrian Hunter <adrian.hunter@...el.com>
To:	Jiri Olsa <jolsa@...hat.com>
CC:	Jiri Olsa <jolsa@...nel.org>, linux-kernel@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Jean Pihet <jean.pihet@...aro.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCHv3 00/19] perf tools: Factor ordered samples queue

On 07/21/2014 03:35 PM, Jiri Olsa wrote:
> On Mon, Jul 21, 2014 at 03:09:07PM +0300, Adrian Hunter wrote:
> 
> SNIP
> 
>>>>
>>>> ...so is the 100MB limit needed at all if you have ROUND
>>>> events?
>>>
>>> for data files captured without the ROUND events fix
>>
>> I am not sure it should be the default then, if it is
>> not needed going forward.
> 
> I'd be ok with not setting 100MB limit by default, just need a way
> to configure it.. so without following patch:
>   perf tools: Limit the ordered events queue by default to 100MB

Ok then.  Also it would be good to have a warning if a premature flush
is forced, so that you can distinguish the cause of out-of-order
messages.

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