Hi James Ive setup a windows 2003 guest and thought id do a performance test. Nework is great, much faster. When i run nbench and do an i/o test on the disk using a 100mb thread i get much slower performance using the GPLPV drivers than i do when not using them. Is there a setting that needs to be changed? Thanks Ian _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Nathan O''Sullivan
2009-Dec-17 19:44 UTC
Re: [Xen-users] Disk I/O performance with GPLPV 10.0.142
Ian Tobin wrote:> > Hi James > > > > Ive setup a windows 2003 guest and thought id do a performance test. > > > > Nework is great, much faster. > > > > When i run nbench and do an i/o test on the disk using a 100mb thread > i get much slower performance using the GPLPV drivers than i do when > not using them. Is there a setting that needs to be changed? > > > > Thanks > > > > Ian > > > > >The impression I get is that before installing GPLPV, many benchmarks on Windows get "tricked" by some sort of caching effect on the dom0 side. If you try a more realistic test you will probably find that performance is actually better. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Oh right, makes sense. Ill try something else tomorrow, thanks for getting back to me From: Nathan O''Sullivan [mailto:nathan@mammoth.com.au] Sent: 17 December 2009 19:44 To: Ian Tobin Cc: xen-users@lists.xensource.com Subject: Re: [Xen-users] Disk I/O performance with GPLPV 10.0.142 Ian Tobin wrote: Hi James Ive setup a windows 2003 guest and thought id do a performance test. Nework is great, much faster. When i run nbench and do an i/o test on the disk using a 100mb thread i get much slower performance using the GPLPV drivers than i do when not using them. Is there a setting that needs to be changed? Thanks Ian The impression I get is that before installing GPLPV, many benchmarks on Windows get "tricked" by some sort of caching effect on the dom0 side. If you try a more realistic test you will probably find that performance is actually better. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users