From: Jan Kiszka <jan.kiszka-kv7WeFo6aLtBDgjK7y7TUQ@public.gmane.org>
To: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: High vm-exit latencies during kvm boot-up/shutdown
Date: Wed, 24 Oct 2007 11:16:07 +0200 [thread overview]
Message-ID: <471F0D57.3020209@siemens.com> (raw)
In-Reply-To: <471F07C0.8040104-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Avi Kivity wrote:
> Jan Kiszka wrote:
>> I ran
>>
>> user/kvmctl user/test/bootstrap user/test/smp.flat
>>
>> with the busy loop hacked into bootstrap, but I got no latency spots
>> this time. And what should I look for in the output of kvm_stat?
>>
>>
>
> The first numeric column is the total number of exits; the second is the
> rate of change (per second). For a spinning workload, both irq_exits
> and exits rate should equal the timer frequency.
It matches roughly, but this isn't surprising given the lack of latency
peaks in this scenario.
Jan
--
Siemens AG, Corporate Technology, CT SE 2
Corporate Competence Center Embedded Linux
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next prev parent reply other threads:[~2007-10-24 9:16 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-22 23:09 High vm-exit latencies during kvm boot-up/shutdown Jan Kiszka
[not found] ` <471D2D8C.1080202-S0/GAf8tV78@public.gmane.org>
2007-10-23 1:05 ` Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A02441127-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-10-23 6:38 ` Jan Kiszka
[not found] ` <471D96DC.7070809-S0/GAf8tV78@public.gmane.org>
2007-10-23 7:46 ` Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A024414D9-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-10-23 9:08 ` Jan Kiszka
[not found] ` <471DBA1A.2080108-S0/GAf8tV78@public.gmane.org>
2007-10-23 9:46 ` Avi Kivity
[not found] ` <471DC311.2050003-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-23 13:30 ` Jan Kiszka
[not found] ` <471DF76B.7040001-kv7WeFo6aLtBDgjK7y7TUQ@public.gmane.org>
2007-10-23 14:19 ` Avi Kivity
[not found] ` <471E02F7.6080408-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-23 14:41 ` Jan Kiszka
[not found] ` <471E0818.6060405-kv7WeFo6aLtBDgjK7y7TUQ@public.gmane.org>
2007-10-23 14:44 ` Jan Kiszka
2007-10-23 15:26 ` Avi Kivity
[not found] ` <471E1290.2000208-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-23 15:59 ` Jan Kiszka
[not found] ` <471E1A77.90808-kv7WeFo6aLtBDgjK7y7TUQ@public.gmane.org>
2007-10-23 16:14 ` Avi Kivity
[not found] ` <471E1DCD.5040301-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-23 16:31 ` Jan Kiszka
[not found] ` <471E21D7.3000309-kv7WeFo6aLtBDgjK7y7TUQ@public.gmane.org>
2007-10-23 16:38 ` Avi Kivity
[not found] ` <471E238E.6040005-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-23 16:56 ` Jan Kiszka
[not found] ` <471E27B0.1090001-kv7WeFo6aLtBDgjK7y7TUQ@public.gmane.org>
2007-10-23 17:05 ` Avi Kivity
[not found] ` <471E29C5.1060807-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-24 8:37 ` Jan Kiszka
[not found] ` <471F0464.4000704-kv7WeFo6aLtBDgjK7y7TUQ@public.gmane.org>
2007-10-24 8:52 ` Avi Kivity
[not found] ` <471F07C0.8040104-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-24 9:16 ` Jan Kiszka [this message]
[not found] ` <471F0D57.3020209-kv7WeFo6aLtBDgjK7y7TUQ@public.gmane.org>
2007-10-24 9:33 ` Avi Kivity
[not found] ` <471F116D.9080903-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-24 16:22 ` Jan Kiszka
[not found] ` <471F7143.8040406-kv7WeFo6aLtBDgjK7y7TUQ@public.gmane.org>
2007-10-24 16:52 ` Avi Kivity
[not found] ` <471F7865.7070506-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-25 17:50 ` Jan Kiszka
[not found] ` <4720D76D.7070300-kv7WeFo6aLtBDgjK7y7TUQ@public.gmane.org>
2007-10-25 18:02 ` Avi Kivity
[not found] ` <4720DA42.6090300-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-26 1:41 ` Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A02482827-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-10-26 8:20 ` Avi Kivity
[not found] ` <4721A350.7030409-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-26 8:32 ` Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A02482B96-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-10-26 9:03 ` Jan Kiszka
[not found] ` <4721AD49.7010405-kv7WeFo6aLtBDgjK7y7TUQ@public.gmane.org>
2007-10-26 9:18 ` Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A02482BE4-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-10-26 9:37 ` Dor Laor
2007-10-26 12:21 ` Avi Kivity
[not found] ` <4721DBE4.6040801-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-29 8:32 ` Dong, Eddie
2007-10-26 9:25 ` Avi Kivity
2007-10-26 9:18 ` Avi Kivity
[not found] ` <4721B0FD.9020006-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-10-26 9:36 ` Dong, Eddie
[not found] ` <10EA09EFD8728347A513008B6B0DA77A02482BFE-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-10-26 9:58 ` Avi Kivity
2007-10-23 14:43 ` Gregory Haskins
[not found] ` <1193150619.8343.21.camel-5CR4LY5GPkvLDviKLk5550HKjMygAv58XqFh9Ls21Oc@public.gmane.org>
2007-10-23 14:50 ` Jan Kiszka
2007-10-23 8:16 ` Avi Kivity
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