linux-kernel - Re: [RFC 4/5] x86, perf: implements lwp-perf-integration (rc1)

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Date:	Sun, 18 Dec 2011 09:04:43 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Hans Rosenfeld <hans.rosenfeld@....com>
Cc:	hpa@...or.com, tglx@...utronix.de, suresh.b.siddha@...el.com,
	eranian@...gle.com, brgerst@...il.com, robert.richter@....com,
	Andreas.Herrmann3@....com, x86@...nel.org,
	linux-kernel@...r.kernel.org, bebl@...eta.org,
	Benjamin Block <benjamin.block@....com>
Subject: Re: [RFC 4/5] x86, perf: implements lwp-perf-integration (rc1)


* Hans Rosenfeld <hans.rosenfeld@....com> wrote:

> From: Benjamin Block <benjamin.block@....com>
> 
> Implements a basic integration of LWP into perf. Permits a way 
> to create a perf-event that will be backed by LWP. The PMU 
> creates the required structures and userspace-memories. The 
> PMU also collects the samples from the ring-buffer, but as 
> there is currently no interrupt- and overflow-implementation, 
> they are not reported (TODO).

Ok, this is a step in the right direction - once the threshold 
IRQ flow control mechanism is implemented we are looking at 
something that might be mergeable. Any ETA on those bits?

Thanks,

	Ingo
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