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Re: [Xen-users] Bad TCP accept performance

  • To: Iain Kay <spam@xxxxxxxxxxx>
  • From: Carl Byström <cgbystrom@xxxxxxxxx>
  • Date: Thu, 26 May 2011 10:44:46 +0200
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Thu, 26 May 2011 02:53:57 -0700
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On Thu, May 26, 2011 at 1:09 AM, Iain Kay <spam@xxxxxxxxxxx> wrote:
I've done some testing with Xen 4.1.0 and 2.6.39 vanilla kernel. Also tested on CentOS 5.6 stock kernel and 2.6.39 without xen-4.1.gz loading it.

The results speak for themselves. I can definitely confirm the issue you are reporting on current xen stable (4.1.0) with latest 2.6.39 vanilla kernel.

Great work Iain, thanks! Isolation of the problem at least, now one just need to figure out if there's an easy way improve this in Xen or if it requires some major changes.

Can I post your results on Server Fault (the original question was posted there) ? I presume a lot of people there are also interested.

Carl Byström
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