On Sun, Sep 19, 2010 at 4:53 AM, Dor Laor <[email protected]> wrote: > On 09/19/2010 10:17 AM, Dan Kenigsberg wrote: >> >> On Sat, Sep 18, 2010 at 10:58:39PM -0400, sean darcy wrote: >>> >>> I'm running kvm on F14. I'm running 2 XP clones. The ksm and ksmtuned >>> demons are running. >>> >>> Yet: >>> >>> for ii in /sys/kernel/mm/ksm/* ; do echo -n "$ii: " ; cat $ii ; done >>> /sys/kernel/mm/ksm/full_scans: 0 >>> /sys/kernel/mm/ksm/pages_shared: 0 >>> /sys/kernel/mm/ksm/pages_sharing: 0 >>> /sys/kernel/mm/ksm/pages_to_scan: 100 >>> /sys/kernel/mm/ksm/pages_unshared: 0 >>> /sys/kernel/mm/ksm/pages_volatile: 266200 >>> /sys/kernel/mm/ksm/run: 0 >>> /sys/kernel/mm/ksm/sleep_millisecs: 20 >>> >>> And yes, I've echo'd 1 to sys/kernel/mm/ksm/run, but it gets reset to >>> 0 after about a minute (ksmtuned at work?). >>> >>> When does ksm do its stuff? This is a pretty big machine (16G). Does >>> it wait until there's memory pressure? >> >> Yes, ksmtuned does exactly that. If you prefer to control ksm/run >> yourself, you can shut this service down. > > If you have sufficient memory on the host, ksm won't scan until the free ram > pages will cross some water mark. > Check /etc/ksmtuned.conf and watch the log file if debug is enabled. > >> _______________________________________________ >> virt mailing list >> [email protected] >> https://admin.fedoraproject.org/mailman/listinfo/virt > >
OK. Thanks for the prompt replies. I'll be installing this server next week using 8 or more XP clones. That'll be a better test. sean _______________________________________________ virt mailing list [email protected] https://admin.fedoraproject.org/mailman/listinfo/virt
