patch works fine here on 8-STABLE. my deadlock probleme seams to be corrected (after 6h of zfs receive + find | wc -l + many small reads).
2010/7/10 Peter Jeremy <peterjer...@acm.org>: > On 2010-Jul-08 23:30:33 +0200, Martin Matuska <m...@freebsd.org> wrote: >>> Looking at the patchset, the most critical issue (IMHO) that doesn't >>> appear to have been addressed is the interaction between ZFS ARC and >>> the VM cache used by UFS/NFS: arc_memory_throttle() is still making >>> decisions solely on the amount of "free" memory, without considering >>> "inactive" or "cache". I am running a slight variant of a patch by > ... >>Regarding ARC, you might want to try the revision 209227 from head that >>is scheduled for MFC on 18.7.2010: >>http://people.freebsd.org/~mm/patches/zfs/head-12636.patch > > That patch appears to address issues with unreasonable arc sizing but > doesn't alter the throttling algorithm: FreeBSD's "traditional" VM > management algorithm (used by everything except ZFS) minimises space > marked as "free" by preferentially keeping cached data in the "cache" > or "inactive" queues. ZFS uses its own caching which solely uses the > "free" list to determine memory availability. This means ZFS can't > apply any pressure to the FreeBSD VM system and runs in a virtually > permanent state of memory starvation. > > In any case, I have applied that patch as it appears useful. > > -- > Peter Jeremy > _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
