linux-kernel - Re: [PATCH] perfcounters: IRQ and NMI support on AMD CPUs

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Date:	Fri, 06 Mar 2009 00:02:39 +0530
From:	Jaswinder Singh Rajput <jaswinder@...nel.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Ingo Molnar <mingo@...e.hu>, Paul Mackerras <paulus@...ba.org>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] perfcounters: IRQ and NMI support on AMD CPUs

Hello Peter,

Ahh, so that day you was getting triple fault in this ?

On Thu, 2009-03-05 at 18:20 +0100, Peter Zijlstra wrote:
> Subject: perfcounters: IRQ and NMI support on AMD CPUs
> From: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> Date: Thu Mar 05 18:08:27 CET 2009
> 
> The below completes the K7+ performance counter support.
> 
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> ---
>  arch/x86/kernel/cpu/perf_counter.c |  272 +++++++++++++++++++++++++++++++------
>  1 file changed, 228 insertions(+), 44 deletions(-)
> 

It was in my TODO list, but I am glad that you finished it :-)

Any how with this patch on my 64 bit AMD box I am getting:

[jaswinder@...v5 perfcounters]$ ./perfstat -e 0,1,2,3 ls > /dev/null 

 Performance counter stats for 'ls':

perfstat: perfstat.c:415: main: Assertion `res == sizeof(single_count)'
failed.
Aborted
[jaswinder@...v5 perfcounters]$ 

[root@...v5 perfcounters]# ./kerneltop 
KernelTop refresh period: 2 seconds
kerneltop: kerneltop.c:883: main: Assertion `res == sizeof(ip)' failed.
Aborted
[root@...v5 perfcounters]#

Thanks,
--
JSR


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