Re: SCHED_ULE should not be the default
Attilio Rao <[email protected]>
| Newsgroups | gmane.os.freebsd.current,gmane.os.freebsd.stable,gmane.os.freebsd.performance |
|---|---|
| Message-ID | <CAJ-FndCsGUTHM2AY3C+2ucup9=B5k0WPKmfcy4SDKNb0xv85BQ@mail.gmail.com> |
2011/12/15 Mike Tancsa <[email protected]>: > On 12/15/2011 11:42 AM, Attilio Rao wrote: >> >> I'm thinking now to a better test-case for this: can you try that on a >> tmpfs volume? > > There is enough RAM in the box so that it should not touch the disk, and > I was sending the output to /dev/null, so it was not writing to the disk. > >> >> Also what filesystem you were using? > > UFS > >> How many CPUs were in place? > > 4 > >> Did you reboot before to move the steal_thresh value? > > No. So, as very first thing, can you try the following: - Same codebase, etc. etc. - Make the test 4 times, discard the first and ministat for the other 3 - Reboot - Change the steal_thresh value - Make the test 4 times, discard the first and ministat for the other 3 Then report discarded values and the ministated one and we will have more informations I guess (also, I don't think devfs contention should play a role here, thus nevermind about it for now). Thanks, Attilio -- Peace can only be achieved by understanding - A. Einstein _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "[email protected]"