Hi. i am very interested in ZFS compression on vs off tests maybe you can run another one with the 3510.
i have seen a slightly benefit with compression on in the following test (also with high system load): S10U2 v880 8xcore 16Ggb ram (only six internal disks at this moment, i wait for the san luns -;) filebench/varmail test with default parameter and run for 60 seconds zpool create lzp raidz c0t2d0 c0t3d0 c0t4d0 c0t5d0 ZFS compression on IO Summary: 284072 ops 4688.6 ops/s, (721/722 r/w) 24.2mb/s, 544us cpu/op, 10.2ms latency IO Summary: 295985 ops 4887.7 ops/s, (752/752 r/w) 25.2mb/s, 539us cpu/op, 9.8ms latency IO Summary: 337249 ops 5568.1 ops/s, (857/857 r/w) 28.5mb/s, 529us cpu/op, 8.6ms latency IO Summary: 306231 ops 5055.1 ops/s, (778/778 r/w) 25.9mb/s, 531us cpu/op, 9.4ms latency ZFS compression off IO Summary: 284828 ops 4701.8 ops/s, (723/724 r/w) 24.0mb/s, 553us cpu/op, 10.2ms latency IO Summary: 276570 ops 4565.5 ops/s, (702/703 r/w) 23.3mb/s, 543us cpu/op, 10.5ms latency IO Summary: 276570 ops 4565.5 ops/s, (702/703 r/w) 23.3mb/s, 543us cpu/op, 10.5ms latency IO Summary: 264656 ops 4370.3 ops/s, (672/673 r/w) 22.1mb/s, 546us cpu/op, 11.1ms latency IO Summary: 264656 ops 4370.3 ops/s, (672/673 r/w) 22.1mb/s, 546us cpu/op, 11.1ms latency test under heavy avg. system load 9 compression on IO Summary: 285405 ops 4701.3 ops/s, (723/724 r/w) 22.9mb/s, 5370us cpu/op, 10.1ms latency IO Summary: 285946 ops 4719.5 ops/s, (726/726 r/w) 23.3mb/s, 5342us cpu/op, 10.0ms latency IO Summary: 307347 ops 5074.4 ops/s, (781/781 r/w) 24.6mb/s, 4964us cpu/op, 9.3ms latency IO Summary: 271030 ops 4472.6 ops/s, (688/688 r/w) 22.1mb/s, 5650us cpu/op, 10.5ms latency compression off IO Summary: 277434 ops 4579.8 ops/s, (705/705 r/w) 22.6mb/s, 5520us cpu/op, 10.4ms latency IO Summary: 259470 ops 4283.9 ops/s, (659/659 r/w) 21.2mb/s, 5913us cpu/op, 11.2ms latency IO Summary: 272979 ops 4506.2 ops/s, (693/693 r/w) 22.0mb/s, 5601us cpu/op, 10.4ms latency IO Summary: 271089 ops 4475.8 ops/s, (689/689 r/w) 22.2mb/s, 5644us cpu/op, 10.6ms latency This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
