Pawel Jakub Dawidek writes: > I'm CCing zfs-discuss@opensolaris.org, as this doesn't look like > FreeBSD-specific problem. > > It looks there is a problem with block allocation(?) when we are near > quota limit. tank/foo dataset has quota set to 10m: > > Without quota: > > FreeBSD: > # dd if=/dev/zero of=/tank/test bs=512 count=20480 > time: 0.7s > > Solaris: > # dd if=/dev/zero of=/tank/test bs=512 count=20480 > time: 4.5s > > With quota: > > FreeBSD: > # dd if=/dev/zero of=/tank/foo/test bs=512 count=20480 > dd: /tank/foo/test: Disc quota exceeded > time: 306.5s > > Solaris: > # dd if=/dev/zero of=/tank/foo/test bs=512 count=20480 > write: Disc quota exceeded > time: 602.7s > > CPU is almost entirely idle, but disk activity seems to be high. >
Yes, as we are near quota limit, each transaction group will accept a small amount as to not overshoot the limit. I don't know if we have the optimal strategy yet. -r > Any ideas? > > -- > Pawel Jakub Dawidek http://www.wheel.pl > [EMAIL PROTECTED] http://www.FreeBSD.org > FreeBSD committer Am I Evil? Yes, I Am! > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
