linux-kernel - Re: Announce: Sysprof 1.1.2 CPU profiler for Linux

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Message-ID: <20091012205812.GF17163@elte.hu>
Date:	Mon, 12 Oct 2009 22:58:12 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Soeren Sandmann <sandmann@...mi.au.dk>, gnome-announce@...me.org,
	linux-kernel@...r.kernel.org
Subject: Re: Announce: Sysprof 1.1.2 CPU profiler for Linux


* Christoph Hellwig <hch@...radead.org> wrote:

> On Sat, Sep 26, 2009 at 05:46:23PM +0200, Soeren Sandmann wrote:
> > Sysprof 1.1.2 is now available. This is a development release leading
> > up to a stable 1.2.0 release.
> > 
> > Sysprof is a sampling system-wide CPU profiler for Linux.  This
> > version is based on the perf counter interface in 2.6.31 kernels and
> > will not work with earlier kernels.
> 
> Btw, what is the plan for the sysprof ftrace plugin?  In general we 
> move away from ftrace plugins towards trace events and perf, and if I 
> remember correctly ftrace file format changes caused enough pain for 
> sysprof that it kept shipping it's old hacky kernel module.
> 
> Is it time to deprectate the sysprof ftrace plugin?

Yes - but it's minimal maintenance overhead so we want to keep it for 
kernel release or two, to sunset it properly.

Thanks,

	Ingo
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