From mboxrd@z Thu Jan  1 00:00:00 1970
From: Avi Kivity <avi@redhat.com>
Subject: Re: KVM lock contention on 48 core AMD machine
Date: Mon, 21 Mar 2011 15:53:06 +0200
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Cc: Joerg Roedel <joro@8bytes.org>, kvm@vger.kernel.org
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On 03/21/2011 03:41 PM, Ben Nagy wrote:
> perf report output (huge, sorry)
> http://paste.ubuntu.com/583311/
>

In the future, please post the binary perf.dat.

Anyway, I see

     39.87%              kvm  [kernel.kallsyms]       [k] delay_tsc
                         |
                         --- delay_tsc
                            |
                            |--98.20%-- __delay
                            |          do_raw_spin_lock
                            |          |
                            |          |--90.51%-- _raw_spin_lock_irqsave
                            |          |          |
                            |          |          |--99.78%-- __lock_timer
                            |          |          |          |
                            |          |          |          |--62.85%-- sys_timer_gettime
                            |          |          |          |          system_call_fastpath
                            |          |          |          |          |
                            |          |          |          |          |--1.59%-- 0x7ff6c20d26fc
                            |          |          |          |          |
                            |          |          |          |          |--1.55%-- 0x7f16d89866fc


Please disable all spinlock debugging and try again.



-- 
error compiling committee.c: too many arguments to function