Hi, I noticed on one of the discussion that both Dom0 and DomU have the same scheduler will cause I/O issues and changing the I/O scheduler to noop for Xen VPS will give better performance. Is it correct? If its correct then how can we set the default I/O scheduler as noop for Xen VM''s without getting inside of them? I mean is there any option that we can declare on DomU config itself? _______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
Hi, I think I may found but unsure would it work. Shall we add "extra=''elevator=noop''" on domU config? On Sun, Feb 3, 2013 at 8:32 AM, Linux Hack <linuxhack2012@gmail.com> wrote:> Hi, > > I noticed on one of the discussion that both Dom0 and DomU have the same > scheduler will cause I/O issues and changing the I/O scheduler to noop for > Xen VPS will give better performance. Is it correct? > > If its correct then how can we set the default I/O scheduler as noop for > Xen VM''s without getting inside of them? I mean is there any option that we > can declare on DomU config itself? > >_______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users
At 04:02 03.02.2013, you wrote:>If its correct then how can we set the default I/O scheduler as noop >for Xen VM''s without getting inside of them? I mean is there any >option that we can declare on DomU config itself?1) compile domU kernel accordingly. 2) domU-config: extra = "elevator=noop" Regards, Christian -- Markt-Apotheke Christian Holpert e.K., Mömbris http://www.marktapotheke.org - info@marktapotheke.org http://www.blue-essentials-shop.de - info@blue-essentials-shop.de Apotheker Christian Holpert Im Markthof 5 63776 Mömbris Tel.: 06029-1379 Fax: 9986589 Amtsgericht Aschaffenburg, HR.A, Registernummer 2165