From: Tommi Virtanen <tv@tv.debian.net>
To: Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk>
Cc: xen-devel@lists.sourceforge.net, ian.pratt@cl.cam.ac.uk
Subject: Re: Serious performance issues
Date: Mon, 07 Mar 2005 09:11:33 +0200 [thread overview]
Message-ID: <422BFEA5.2030003@tv.debian.net> (raw)
In-Reply-To: <A95E2296287EAD4EB592B5DEEFCE0E9D1E3496@liverpoolst.ad.cl.cam.ac.uk>
Ian Pratt wrote:
> Just to be clear, you're not using the usb virtualization stuff, just
> accessing the device in domain 0?
During these tests, no domU was ever started.
> Does anyone else see this interrupt storm with USB devices active?
> Please can everyone check as I'll hold the 2.0.5 release (with USB
> enabled in the default config) until we understand the scale of the
> problem.
Also, note that I can get the same problem with bridging:
lots of timer interrupts
ip li set dev br0 down --> timer gets 30/s
ip li set dev br0 up --> timer goes crazy
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next prev parent reply other threads:[~2005-03-07 7:11 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-07 8:04 Serious performance issues Ian Pratt
2005-03-07 7:11 ` Tommi Virtanen [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-03-07 9:47 Ian Pratt
2005-03-07 15:11 ` Nuutti Kotivuori
2005-03-07 8:19 Ian Pratt
2005-03-07 9:23 ` Tommi Virtanen
2005-03-07 19:19 ` Nuutti Kotivuori
2005-03-04 17:48 Ian Pratt
2005-03-04 18:57 ` Tommi Virtanen
2005-03-04 17:44 Ian Pratt
2005-03-07 6:51 ` Tommi Virtanen
2005-03-03 21:57 Tommi Virtanen
2005-03-04 15:52 ` Anthony Liguori
2005-03-04 18:55 ` Tommi Virtanen
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