on 29/09/2010 03:38 Artem Belevich said the following: > On Tue, Sep 28, 2010 at 3:22 PM, Andriy Gapon <a...@icyb.net.ua> wrote: >> BTW, have you seen my posts about UMA and ZFS on hackers@ ? >> I found it advantageous to use UMA for ZFS I/O buffers, but only after >> reducing >> size of per-CPU caches for the zones with large-sized items. >> I further modified the code in my local tree to completely disable per-CPU >> caches for items > 32KB. > > Do you have updated patch disabling per-cpu caches for large items? > I've just rebuilt FreeBSD-8 with your uma-2.diff (it needed r209050 > from -head to compile) and so far things look good. I'll re-enable UMA > for ZFS and see how it flies in a couple of days.
I've just uploaded uma-3.diff. It implements what uma-1.diff did, plus totally skips per-CPU caches for items > 32KB, and also has code from uma-2.diff for flushing per-CPU caches on significant memory shortage. Will appreciate your feedback. Thank you for testing! -- Andriy Gapon _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
