On Wed, Sep 29, 2010 at 11:04 AM, Dan Langille <d...@langille.org> wrote: > It's taken about 15 hours to copy 800GB. I'm sure there's some tuning I > can do. > > The system is now running: > > # zfs send storage/bac...@transfer | zfs receive storage/compressed/bacula
Try piping zfs data through mbuffer (misc/mbuffer in ports). I've found that it does help a lot to smooth out data flow and increase send/receive throughput even when send/receive happens on the same host. Run it with a buffer large enough to accommodate few seconds worth of write throughput for your target disks. Here's an example: http://blogs.everycity.co.uk/alasdair/2010/07/using-mbuffer-to-speed-up-slow-zfs-send-zfs-receive/ --Artem _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
