Hello, Are quad core systems generally preferable (over dual core systems)? I know it''s advisable to run the Dom0 seperately on its own CPU/Core But will DomUs generally benefit from multi-core seperation as well? This is not about multiprocessor-adjusted applications but about the general performance and usability of the DomUs (with a typical "Desktop" board like the "Intel DQ35JO" and with all the Domains on one single harddrive). Thanks & best regards, Mark Weinem _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Nick Couchman
2008-Feb-06 15:39 UTC
Re: [Xen-users] Quad core systems generally preferable?
Depends on what you''re trying to do. If you need more VMs per host, I would think quad-core would be the way to go. If you need fewer VMs per host but more speed on each of those VMs, you might want to spend the money on the faster dual-cores. -Nick>>> On Wed, Feb 6, 2008 at 8:00 AM, Mark Weinem <mark.weinem@alumni.uni-due.de> wrote:Hello, Are quad core systems generally preferable (over dual core systems)? I know it''s advisable to run the Dom0 seperately on its own CPU/Core But will DomUs generally benefit from multi-core seperation as well? This is not about multiprocessor-adjusted applications but about the general performance and usability of the DomUs (with a typical "Desktop" board like the "Intel DQ35JO" and with all the Domains on one single harddrive). Thanks & best regards, Mark Weinem _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Stephan Seitz
2008-Feb-06 16:38 UTC
Re: [Xen-users] Quad core systems generally preferable?
Hi, last month I''ve read a unisys paper with benchmark tests compared between 8-way and 16-way systems. I''m sorry but I don''t find this paper right now, maybe google is helpful. The benchmarks were done with vmware and showed a big benefit on 16-way. As far as I remember the 8-way system held 12 vm''s, the 16-way system 128 (!) (limit of vmware) vm''s, with each scenario at about 60%-70% overall cpu utilization. I think this was done on ES7000/one. cheers Stephan Mark Weinem schrieb:> Hello, > > Are quad core systems generally preferable (over dual core > systems)? > > I know it''s advisable to run the Dom0 seperately on its own CPU/Core But > will DomUs generally benefit from multi-core seperation as well? This is > not about multiprocessor-adjusted applications but about the general > performance and usability of the DomUs (with a typical "Desktop" board > like the "Intel DQ35JO" and with all the Domains on one single harddrive). > > > Thanks & best regards, Mark Weinem > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users-- Stephan Seitz Senior System Administrator *netz-haut* e.K. multimediale kommunikation zweierweg 22 97074 würzburg fon: +49 931 2876247 fax: +49 931 2876248 web: www.netz-haut.de <http://www.netz-haut.de/> registriergericht: amtsgericht würzburg, hra 5054 _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users