linux-kernel - Re: [PATCH] perf tools: Exit recording if events have non matching sample type

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Message-ID: <1317368359.19415.0.camel@twins>
Date:	Fri, 30 Sep 2011 09:39:19 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	David Ahern <dsahern@...il.com>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Jiri Olsa <jolsa@...hat.com>, mingo@...e.hu, paulus@...ba.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf tools: Exit recording if events have non matching
 sample type

On Thu, 2011-09-29 at 17:33 -0600, David Ahern wrote:
> > For record that means we need to dump each per-sample_id mmap onto a
> > separate file, i.e. use a directory, etc.
> 
> That seems like a major re-write of perf. 

Well we want to go there anyway. A file per cpu stream can be a lot less
overhead than one file for all cpu streams.

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