On Tue, Jul 1, 2008 at 16:34, Juho Mäkinen <[EMAIL PROTECTED]> wrote: > Here's bonnie++ output with default settings: > Version 1.03 ------Sequential Output------ --Sequential Input- > --Random- > -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- > Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec > %CP > sonas 4100M 138010 74 144083 33 76546 19 138071 90 185735 15 > 464.7 1 These are exactly the numbers I'd expect to see. The disks aren't the problem.
> 2035941376 bytes (2.0 GB) copied, 23.6579 seconds, 86.1 MB/s and neither is the filesystem. > The network rate is about 35-45 MB/s when copying large files from Windows XP > over CIFS to the ZFS share. This is the most surprising part of your findings, honestly. I would have expected lousy write rates over CIFS as well. A few things to try: put in a different ethernet card if you have one, on one or more ends. Realtek works, but I've been unimpressed with their performance in the past. An Intel x1 pci express card will only run you around $40, and I've seen much better results with them. Is hardware checksum offloading enabled on either end? How does another application (e.g., scp) behave between the two machines? > Monitoring "iostat -xnz 1" shows the following trend (while copying large > files from windows): > three seconds of writing > then three seconds without any writing. Then again three seconds of writing > following with three seconds without writing. If you watch network traffic during this time (e.g., with Wireshark or snoop) do you see anything suspicious? > Does that info help anything? Yes, at least by ruling out ZFS itself as causing the problem. Will _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
