On Tue, 2009-12-15 at 19:31 +0100, Dario Lesca wrote: > Il giorno mar, 15/12/2009 alle 11.28 -0600, Justin M. Forbes ha scritto: > > > > > Is this normal? > > KSM has a penalty in that it requires CPU cycles to scan for usable > > pages. > > > This should be mitigated by the ksm service turning the scanner off > > when it is not needed. > > Do you have any more information on the hardware profile? Is there a > > smolt profile for this system? > > Yes : > > http://www.smolts.org/client/show_all/pub_9da3c016-41da-42f1-b2c3-05f31ffb88f5 > > > > It's possible do something to improve the situation? > > Is the ksmtuned service running? > Yes: > [r...@lesca ~]# /etc/init.d/ksmtuned status > ksmtuned (pid 1522) in esecuzione... > > > > If not, please turn it on. Optionally you can also turn off ksm and > > ksmtuned. > > I have turn off ksm and ksmtuned but the qemu use always 15% cpu... none > is changed.
This is most likely an manifestation of https://bugzilla.redhat.com/show_bug.cgi?id=478317 and hopefully we will have a fix soon. thanks Justin _______________________________________________ Fedora-virt mailing list [email protected] https://www.redhat.com/mailman/listinfo/fedora-virt
