On Wed, 2009-11-04 at 05:15 +0800, Thomas Goirand wrote: > Ian Campbell wrote: > > On Tue, 2009-11-03 at 19:41 +0800, Thomas Goirand wrote: > >> Bastian Blank wrote: > >>>> Yes. http://hermes.jura.uni-tuebingen.de/~blank/debian/xen-test. > >> I used to run the 2.6.26-2-xen-amd64 dom0, and it was quite fast. Since > >> I am using that new version, I really have the bad feeling that my > >> computer is A LOT slower than before. It used to be nearly as fast as > >> the non-xen kernel. Any idea what's happening here? > > > > Did you compare 2.6.31-native to 2.6.31-xen or just 2.6.26-{native,xen} > > to 2.6.31-xen. IOW have you really narrowed it down to the Xen bits > > rather than a more generic slow down? > > I'm comparing 2.6.31-xen to 2.6.26-2-xen, and I have the feeling that > 2.6.31 is a lot slower.
It would be worth comparing 2.6.31-native to 2.6.26-native as well. > > If you can provide data or measurements to support your feeling then I'm > > sure upstream would be interested to hear about it. > > What should I use? Unix bench for example? kernbench might be a good first step, but really it depends on exactly what you perceive to be slow. Ian. -- Ian Campbell "I once witnessed a long-winded, month-long flamewar over the use of mice vs. trackballs...It was very silly." (By Matt Welsh) -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
