Bob Friesenhahn <bfriesen <at> simple.dallas.tx.us> writes: > [...] > X25-E's write cache is volatile), the X25-E has been found to offer a > bit more than 1000 write IOPS.
I think this is incorrect. On the paper the X25-E offers 3300 random write 4kB IOPS (and Intel is known to be very conservative about the IOPS perf numbers they publish). "Dumb" storage IOPS benchmark tools that don't issue parallel I/O ops to the drive tend to report numbers less than half the theoretical IOPS. This would explain why you see only 1000 IOPS. I have direct evidence to prove this (with the other MLC line of SSD drives: X25-M): 35000 random read 4kB IOPS theoretical, 1 instance of a private benchmarking tool measures 6000, 10+ instances of this tool measure 37000 IOPS (slightly better than the theoretical max!) -mrb _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
