From: Rik van Riel <riel@redhat.com>
To: Rik van Riel <riel@redhat.com>
Cc: xen-devel@lists.xensource.com, Christian.Limpach@cl.cam.ac.uk
Subject: Re: [PATCH][RFC] open HVM backing storage with O_SYNC
Date: Wed, 02 Aug 2006 19:26:03 -0400 [thread overview]
Message-ID: <44D1348B.9050506@redhat.com> (raw)
In-Reply-To: <44CD369F.5030908@redhat.com>
Rik van Riel wrote:
> Christian Limpach wrote:
>> Any other ideas what could be the bottleneck then?
>
> Probably scheduling latency.
After switching to the rtl8139 network emulation (which now work
well), the CPU use of both qemu-dm and my VT guests dramatically
decreased and performance is a lot better now.
I'll let you know what the next bottleneck is once I run into
it :)
--
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan
next prev parent reply other threads:[~2006-08-02 23:26 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-28 7:06 [PATCH][RFC] open HVM backing storage with O_SYNC Rik van Riel
2006-07-28 17:02 ` Rik van Riel
2006-07-28 20:21 ` Rik van Riel
2006-07-29 0:44 ` Christian Limpach
2006-07-30 22:45 ` Rik van Riel
2006-08-02 23:26 ` Rik van Riel [this message]
2006-08-04 9:29 ` Christian Limpach
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