From: Jacob Gorm Hansen <jacobg@diku.dk>
To: "Håvard Bjerke" <havarbj@idi.ntnu.no>, runejoha@idi.ntnu.no
Cc: xen-devel@lists.sourceforge.net
Subject: Re: Report on Virtualization in Clusters
Date: Fri, 26 Nov 2004 11:44:03 +0100 [thread overview]
Message-ID: <41A708F3.3020803@diku.dk> (raw)
In-Reply-To: <20041125125424.GO18329@idi.ntnu.no>
Håvard Bjerke wrote:
> Rune and I just finished writing a report on using virtualization with Xen in clusters, with focus on network performance. You may download it from http://www.idi.ntnu.no/~havarbj/clust_virt.pdf
>
> We hope you find it interesting!
Yes, very interesting. Good work.
It seems from your tests without interrupt coalescing that Xen has a
higher interrupt-handling overhead than native Linux. I suppose that
with the new IO model, Xen needs to flush the TLBs for every interrupt
that arrives. Do you think this is the reason for the overhead, or are
the performance problems only due to your hardware being badly supported
by Xen?
Jacob
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next prev parent reply other threads:[~2004-11-26 10:44 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-25 12:54 Report on Virtualization in Clusters Håvard Bjerke
2004-11-26 10:44 ` Jacob Gorm Hansen [this message]
2004-11-26 13:32 ` Håvard Bjerke
2004-11-28 11:17 ` Ian Pratt
2004-11-28 11:54 ` Håvard Bjerke
2004-11-26 15:27 ` Rune Johan Andresen
2004-11-26 16:08 ` Håvard Bjerke
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