> From: Richard Elling [mailto:richard.ell...@gmail.com] > Sent: Sunday, June 19, 2011 11:03 AM > > > I was planning, in the near > > future, to go run iozone on some system with, and without the disk cache > > enabled according to format -e. If my hypothesis is right, it shouldn't > > significantly affect the IOPS, which seems to be corroborated by your > > message. > > iozone is a file system benchmark, won't tell you much about IOPS at the disk > level. > Be aware of all of the caching that goes on there.
Yeah, that's the whole point. The basis of my argument was: Due to the caching & buffering the system does in RAM, the disks' cache & buffer are not relevant. The conversation spawns from the premise of whole-disk versus partition-based pools, possibly toggling the disk cache to off. See the subject of this email. ;-) Hopefully I'll have time to (dis) prove that conjecture this week. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
