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

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Date:	Fri, 06 Mar 2009 00:26:33 +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

On Thu, 2009-03-05 at 19:45 +0100, Peter Zijlstra wrote:
> On Fri, 2009-03-06 at 00:02 +0530, Jaswinder Singh Rajput wrote:
> > 
> > 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]#
> 
> Ah, I think you will need a fresh copy of both utilities, Paul recently
> changed the ABI.
> 
> http://people.redhat.com/mingo/perfcounters/
> 
> Contains the latest IIRC
> 

With fresh copy, perfstat is working.

But kerneltop is still not working and I am not getting any NMI Interrupts.

[root@...v5 new]# ./kerneltop -e 3 -c 100 -e 2

------------------------------------------------------------------------------
 KernelTop:       0 irqs/sec  kernel:nan% [NMI, cache-misses/cache-refs],  (all, 2 CPUs)
------------------------------------------------------------------------------

  weight     events         RIP          kernel function
  ______     ______   ________________   _______________


--
JSR

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