Re: skiplist_unsafe

2007-12-11 Thread David Carter
On Fri, 7 Dec 2007, Janne Peltonen wrote: >> If you feel that your filesystem/buffercache will do a good job at >> writing things out to disk, and you've got battery-backed cache on >> your storage, you should be relatively well off. > > But if I were to turn skiplist_unsafe on, and the OS crashed

Re: skiplist_unsafe

2007-12-07 Thread Janne Peltonen
> I enabled it a few weeks ago before I left UMBC, and it certainly > seemed to help write performance on the ZFS pool -- we started seeing > the larger batched writes on those devices, instead of a constant > stream of itty bity IOs caused by the constant fsync'ing. > > If you feel that you

Re: skiplist_unsafe?

2007-12-01 Thread Rob Banz
I enabled it a few weeks ago before I left UMBC, and it certainly seemed to help write performance on the ZFS pool -- we started seeing the larger batched writes on those devices, instead of a constant stream of itty bity IOs caused by the constant fsync'ing. If you feel that your filesyste