Bjarke Emborg Kragelund
Dabbler
- Joined
- Jun 25, 2013
- Messages
- 41
Hi mav@,
I totally agree - it is not kosher to use a OS/appliance centric counter for a real test. But it was only used as very general way of knowing if we were on the right track. The counter should be taken from the bonnie++ VM.
And the 200 GB was made so that it could fit in ARC - at least most of it.
The LSI 9207 should be good for about 700K IOPS, and my cache devices "only" gives about 75K each, and we have 4.
We have set vfs.zfs.write_limit_shift = 9 ( according to the all knowing Internet ) - By a glance, does that seem to be in order ?
Further more I have set the following :
(Autotune)
vfs.zfs.arc_max = 196137536808
vm.kmem_size = 217930596454
vm.kmem_size_max = 272413245568
( The all knowing.... )
vfs.zfs.vdev.cache.size = 16M
vfs.zfs.txg.synctime_ms = 200
vfs.zfs.l2arc_write_boost = 30 MB
vfs.zfs.l2arc_write_max = 100 MB
vfs.zfs.write_limit_shift = 9
Am I in the woods, or?
Thx again !
I totally agree - it is not kosher to use a OS/appliance centric counter for a real test. But it was only used as very general way of knowing if we were on the right track. The counter should be taken from the bonnie++ VM.
And the 200 GB was made so that it could fit in ARC - at least most of it.
The LSI 9207 should be good for about 700K IOPS, and my cache devices "only" gives about 75K each, and we have 4.
We have set vfs.zfs.write_limit_shift = 9 ( according to the all knowing Internet ) - By a glance, does that seem to be in order ?
Further more I have set the following :
(Autotune)
vfs.zfs.arc_max = 196137536808
vm.kmem_size = 217930596454
vm.kmem_size_max = 272413245568
( The all knowing.... )
vfs.zfs.vdev.cache.size = 16M
vfs.zfs.txg.synctime_ms = 200
vfs.zfs.l2arc_write_boost = 30 MB
vfs.zfs.l2arc_write_max = 100 MB
vfs.zfs.write_limit_shift = 9
Am I in the woods, or?
Thx again !