linux-kernel - Re: 2.6.18 perfmon new code base + libpfm + pfmon

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Message-ID: <p7364f8jvjc.fsf@verdi.suse.de>
Date:	28 Sep 2006 09:32:39 +0200
From:	Andi Kleen <ak@...e.de>
To:	eranian@....hp.com
Cc:	perfmon@...ali.hpl.hp.com, linux-ia64@...r.kernel.org,
	linux-kernel@...r.kernel.org, akpm@...l.org
Subject: Re: 2.6.18 perfmon new code base + libpfm + pfmon

Stephane Eranian <eranian@....hp.com> writes:
> 
> [ak] : separate patch for _TIF_WORK_CTXSW
> 	- I think I submitted a TIF patch for x86-64, but unlike i386 it is not yet in mainline

If it's not in mainline yet I lost it somehow and you should resubmit.

> [ak] : may have to add __kprobes to some functions
> 	- started doing this on some functions. Need better understanding on when to use this

Basically when you could recurse in kprobes. 

> [ak] : cleaner integration with NMI watchdog
> 	- integration done on AMD K8. Issues on P4, P6, due to PMU design

What are the issues?

> [akpm]: documentation for syscall? Is there an API specification?
> 	- answered. In short, there exists a specification but it needs to be updated

Probably you should have man pages ready for submission to the manpage maintainer.
That might also the second review pass on l-k easier if you supply
them in the description.

-Andi
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