Marcelo Tosatti wrote: > On Fri, Sep 12, 2008 at 09:12:03AM -0600, David S. Ahern wrote: >> >> Marcelo Tosatti wrote: >>> On Thu, Sep 11, 2008 at 10:05:12PM -0600, David S. Ahern wrote: >>> >>> David, >>> >>> Please reload the kvm-intel module with "bypass_guest_pf=0" option. >>> >>> >> DOH. You mentioned that in your description, and I forgot to disable it. >> Works fine now. >> >> Guest behavior is amazing. After 30 min of uptime, kscand shows only >> 17secs of cpu usage. Before, kscand was hitting over a minute after >> about 10 minutes of uptime. > > Great. Note that its not fully optimized for the RHEL3 highpte kscand > case, which calls invlpg for present pagetable entries. > > The current patchset simply invalidates the shadow on invlpg, meaning > that the next access will cause a pagefault exit. > > It can instead read the guest pte and prefault, saving one exit per > test-and-clear-accessed operation. >
Meaning performance will get even better? Sweet. david -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
