Don't know how much this will help, but my results: Ultra 20 we just got at work:
# uname -a SunOS unknown 5.10 Generic_118855-15 i86pc i386 i86pc raw disk dd if=/dev/dsk/c1d0s6 of=/dev/null bs=128k count=10000 0.00s user 2.16s system 14% cpu 15.131 total 1,280,000k in 15.131 seconds 84768k/s through filesystem dd if=testfile of=/dev/null bs=128k count=10000 0.01s user 0.88s system 4% cpu 19.666 total 1,280,000k in 19.666 seconds 65087k/s AMD64 Freebsd 7 on a Lenovo something or other, Athlon X2 3800+ uname -a FreeBSD 7.0-CURRENT-200705 FreeBSD 7.0-CURRENT-200705 #0: Fri May 11 14:41:37 UTC 2007 root@:/usr/src/sys/amd64/compile/ZFS amd64 raw disk dd if=/dev/ad6p1 of=/dev/null bs=128k count=10000 10000+0 records in 10000+0 records out 1310720000 bytes transferred in 17.126926 secs (76529787 bytes/sec) (74735k/s) filesystem # dd of=/dev/null if=testfile bs=128k count=10000 10000+0 records in 10000+0 records out 1310720000 bytes transferred in 17.174395 secs (76318263 bytes/sec) (74529k/s) Odd to say the least since "du" for instance is faster on Solaris ZFS... FWIW Freebsd is running version 6 of ZFS and the unpatched but _new_ Ultra 20 is running version 2 of ZFS according to zdb Make sure you're all patched up? This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
