On Sun, Jan 13, 2008 at 04:49:27PM +0100, Anders wrote: > Marcelo Tosatti <[EMAIL PROTECTED]> writes: > > > On Sun, Jan 13, 2008 at 12:19:20PM +0100, Anders wrote: > > [...] > > >> How do you get that high consumption? What combination of clocks/hz on > >> host/guest are you using? > > > > CONFIG_HZ=250 > > Okay, with nohz=off (in the guest) I also see some higher load. I > didn't try the patch, though. > > > UP guests use TSC as a clocksource by default, and TSC reads won't > > cause a VMExit. > > So for the lightest load (power saving), I should use UP and TSC?
Yes. As you note NOHZ also helps dramatically. ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
