From: Dave Hansen <haveblue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
To: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Cc: kvm-devel <kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Subject: Re: kvm-27 vs 28 I/O speed
Date: Wed, 11 Jul 2007 11:54:52 -0700 [thread overview]
Message-ID: <1184180092.26210.49.camel@localhost> (raw)
In-Reply-To: <46931CC9.8060106-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
On Tue, 2007-07-10 at 08:44 +0300, Avi Kivity wrote:
> What does 'top' on the host show in both cases?
On the fast one (kvm-27) I just see the dd as a flash in top. It
doesn't stay for long. The VM isn't very responsive during the dd.
On the slow (kvm-28) one, I see the dd in top creeping along, using ~2%
of the CPU. The guest is responsive during this time
> There was a change in kvm userspace that affected IDE. Can you try
> kvm-27 userspace with a kvm-28 kernel module?
That's actually what I've been doing the whole time. Sorry, my initial
problem description must not have been very clear. I've been using the
kvm-28 modules the entire time, and only varying the userspace.
The IDE changes do look suspect.
-- Dave
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next prev parent reply other threads:[~2007-07-11 18:54 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-06 19:07 kvm-27 vs 28 I/O speed Dave Hansen
2007-07-08 8:14 ` Avi Kivity
[not found] ` <46909CFD.9050806-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-07-09 20:33 ` Dave Hansen
2007-07-10 5:44 ` Avi Kivity
[not found] ` <46931CC9.8060106-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-07-11 18:54 ` Dave Hansen [this message]
2007-07-12 5:37 ` Avi Kivity
[not found] ` <4695BE06.6060609-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-07-12 18:10 ` Dave Hansen
2007-07-13 12:23 ` Avi Kivity
[not found] ` <46976EA7.2020202-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-07-13 13:27 ` Luca
[not found] ` <68676e00707130627p32a43a63l3c6fe647242ec3e-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-07-13 13:41 ` Avi Kivity
[not found] ` <46978110.5090303-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-07-13 18:31 ` Dave Hansen
2007-07-13 18:49 ` Anthony Liguori
[not found] ` <4697C954.8040404-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2007-07-14 6:27 ` Avi Kivity
[not found] ` <46986CEC.7050903-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-07-16 19:40 ` Dave Hansen
2007-07-14 17:30 ` Luca
2007-07-15 19:27 ` Luca
[not found] ` <68676e00707151227hb8b8538j706d9d0ee765ed41-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-07-15 21:07 ` Luca
[not found] ` <68676e00707151407j1cf758e0ya7032c8c8577b982-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-07-15 21:22 ` Luca
[not found] ` <68676e00707151422n2e1f0a07kc4ec10797edfa40c-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-07-16 8:58 ` Avi Kivity
[not found] ` <469B3351.50508-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-07-16 19:32 ` Luca
[not found] ` <68676e00707161232k5fbd0c2cxd8bebfc21faacc8c-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-07-17 7:58 ` Avi Kivity
[not found] ` <469C76C0.5050101-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-07-18 6:01 ` Luca
2007-07-16 19:49 ` Dave Hansen
2007-07-16 19:41 ` Dave Hansen
2007-07-16 19:42 ` Dave Hansen
-- strict thread matches above, loose matches on Subject: below --
2007-07-13 14:00 Gregory Haskins
[not found] ` <46974D330200005A000277EF-Igcdv/6uVdMHoYOw/+koYqIwWpluYiW7@public.gmane.org>
2007-07-13 14:46 ` Luca
2007-07-13 15:11 Gregory Haskins
[not found] ` <46975DD10200005A00027808-Igcdv/6uVdMHoYOw/+koYqIwWpluYiW7@public.gmane.org>
2007-07-13 15:39 ` Luca
[not found] ` <68676e00707130839o3af94674y69e7a990b27f0820-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-07-13 18:33 ` Dave Hansen
2007-07-13 16:04 Gregory Haskins
2007-07-13 16:10 Gregory Haskins
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