On Tue, Jun 08, 2010 at 07:26:45PM +0900, Yoshiaki Kasahara wrote: > On Tue, 8 Jun 2010 02:54:44 -0700, > Jeremy Chadwick <free...@jdc.parodius.com> said: > > > I realise you're talking about amd64, but I'm not sure how UMA is > > getting enabled on i386 to begin with. It does look like it's enabled > > on amd64 by default. > > I believe that this thread had been started before this tunable was > introduced on May 24th. Before that, ZIO_USE_UMA was used to control > the use of UMA, and it was enabled unconditionally in > /usr/src/sys/modules/zfs.
Yoshiaki, thanks for the tip. I didn't check CVS commit logs to see when this tunable was introduced. It appears that the systems I'm looking at don't have the use_uma tunable because the kernel was built from RELENG_8 code dated May 23rd. This would also explain why Pete sees the tunable and I don't. Wish this stuff was documented somewhere. :-) -- | Jeremy Chadwick j...@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB | _______________________________________________ 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"
