Update to something that has version 1.27 of sys/kern/vfs_biomem.c and tell me if you still have the issue.
On Wed, Jun 26, 2013 at 4:35 AM, Tori Mus <[email protected]> wrote: > Hi, > > I'm running current snapshot of OpenBSD on amd64 architecture, MP kernel > (Lenovo Thinkpad to be concrete). Based on the official docs tried to tune > disk performance by adding `softdep' mounting option for ffs slices. > > After updating of /etc/fstab and clean reboot, checked all particular > slices like /home, /usr etc. are really mounted with softdep. > > The issue is about much worse performance then with the default nosoftdep. > Now, for example, when extracting ports.tar.gz snapshot in /usr, other > process cann't open even small files without very long delays like "vi > $HOME/.profile" takes about 2 minutes whereas cpu usage shown with top is > about 5% only ! Turning off softdep redeems the access time of the > previous example to about 4 seconds. > > I've searched mailing lists and read about softdep regression on OpenBSD > 4.8 that was later fixed. Is this regression back. Does anybody else > experiences similar behaviour ?
