Randy Bias wrote: > On Mar 7, 2008, at 8:55 AM, Bob Friesenhahn wrote: >> On Fri, 7 Mar 2008, Rob Logan wrote: >> Since I see 'bzip2' mentioned here (a rather slow compressor), I >> should mention that based on a recommendation from a friend, I gave a >> compressor called 'lzop' (http://www.lzop.org/) a try due to its >> reputation for compression speed. Compressing zfs send was causing it >> to take much longer. Testing with 'lzop' showed that it was 2.5X > > I turned on compression in the ZFS filesystems and never looked back. > Because it's multi-threaded I have seen zero negative performance > impact. In fact, I am unable to really make my ZFS fileservers notice > they are in use CPU-wise. > > The added benefit is that zfs send/recv is already compressed, > removing the need for a costly intermediate single-threaded compressor > of any kind.
See the earlier thread on this. zfs send/recv are NOT already compressed (nor will they be encrypted by the ZFS Crypto project either), they are in the clear. -- Darren J Moffat _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
