On 24 January, 2008 - Steve Hillman sent me these 1,9K bytes: > I realize that this topic has been fairly well beaten to death on this forum, > but I've also read numerous comments from ZFS developers that they'd like to > hear about significantly different performance numbers of ZFS vs UFS for > NFS-exported filesystems, so here's one more. > > The server is an x4500 with 44 drives configured in a RAID10 zpool, and two > drives mirrored and formatted with UFS for the boot device. It's running > Solaris 10u4, patched with the Recommended Patch Set from late Dec/07. The > client (if it matters) is an older V20z w/ Solaris 10 3/05. No tuning has > been done on either box > > The test involved copying lots of small files (2-10k) from an NFS client to a > mounted NFS volume. A simple 'cp' was done, both with 1 thread and 4 parallel > threads (to different directories) and then I monitored to see how fast the > files were accumulating on the server. > > ZFS: > 1 thread - 25 files/second; 4 threads - 25 files/second (~6 per thread) > > UFS: (same server, just exported /var from the boot volume) > 1 thread - 200 files/second; 4 threads - 520 files/second (~130/thread)
To get similar (lower) consistency guarantees, try disabling ZIL.. google://zil_disable .. This should up the speed, but might cause disk corruption if the server crashes while a client is writing data.. (just like with UFS) /Tomas -- Tomas Ögren, [EMAIL PROTECTED], http://www.acc.umu.se/~stric/ |- Student at Computing Science, University of Umeå `- Sysadmin at {cs,acc}.umu.se _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
