From: Avi Kivity <avi@redhat.com>
To: ben@iagu.net
Cc: Joerg Roedel <joro@8bytes.org>, kvm@vger.kernel.org
Subject: Re: KVM lock contention on 48 core AMD machine
Date: Mon, 21 Mar 2011 15:53:06 +0200 [thread overview]
Message-ID: <4D875842.9050308@redhat.com> (raw)
In-Reply-To: <AANLkTin8ZoUAVR2ajoV6cBFiUSe_Dof0_k60dcAGW3r-@mail.gmail.com>
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
next prev parent reply other threads:[~2011-03-21 13:53 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-18 12:02 KVM lock contention on 48 core AMD machine Ben Nagy
2011-03-18 12:30 ` Joerg Roedel
2011-03-19 4:45 ` Ben Nagy
2011-03-21 9:50 ` Avi Kivity
2011-03-21 11:43 ` Ben Nagy
2011-03-21 13:41 ` Ben Nagy
2011-03-21 13:53 ` Avi Kivity [this message]
[not found] ` <AANLkTikWQS281kTtJ32-qo5U+w_BAak7qUwVhUQgOxxv@mail.gmail.com>
2011-03-21 15:50 ` Avi Kivity
2011-03-21 16:16 ` Ben Nagy
2011-03-21 16:33 ` Avi Kivity
2011-03-21 16:54 ` Eric Dumazet
2011-03-21 17:02 ` Avi Kivity
2011-03-21 17:12 ` Eric Dumazet
2011-03-21 18:12 ` Ben Nagy
2011-03-21 22:27 ` [RFC] posix-timers: RCU conversion Eric Dumazet
2011-03-22 7:09 ` [PATCH] " Eric Dumazet
2011-03-22 8:59 ` Ben Nagy
2011-03-22 10:35 ` Avi Kivity
2011-03-22 10:35 ` Avi Kivity
2011-04-04 3:30 ` Ben Nagy
2011-04-04 7:18 ` Avi Kivity
2011-04-04 7:18 ` Avi Kivity
2011-04-05 7:49 ` Peter Zijlstra
2011-04-05 8:16 ` Avi Kivity
2011-04-05 8:16 ` Avi Kivity
2011-04-05 8:48 ` Peter Zijlstra
2011-04-05 8:56 ` Avi Kivity
2011-04-05 8:56 ` Avi Kivity
2011-04-05 9:03 ` Peter Zijlstra
2011-04-05 9:08 ` Avi Kivity
2011-04-05 9:08 ` Avi Kivity
2011-04-05 9:50 ` Ben Nagy
2011-04-05 8:56 ` Mike Galbraith
2011-04-03 16:54 ` Eric Dumazet
2011-04-04 18:08 ` john stultz
2011-04-04 19:47 ` Eric Dumazet
2011-04-05 14:48 ` Oleg Nesterov
2011-04-05 15:18 ` [PATCH v2] " Eric Dumazet
2011-04-05 15:43 ` Oleg Nesterov
2011-05-16 15:10 ` Avi Kivity
2011-05-16 15:30 ` Eric Dumazet
2011-04-08 18:28 ` [PATCH] " Paul E. McKenney
2011-03-21 18:14 ` KVM lock contention on 48 core AMD machine Avi Kivity
2011-03-21 18:48 ` Michael Tokarev
2011-03-21 18:53 ` Avi Kivity
2011-03-18 12:44 ` Stefan Hajnoczi
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4D875842.9050308@redhat.com \
--to=avi@redhat.com \
--cc=ben@iagu.net \
--cc=joro@8bytes.org \
--cc=kvm@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.