On Mon, 20 Apr 2009, Torrey McMahon wrote:
On 4/20/2009 7:26 PM, Robert Milkowski wrote:
Well, you need to disable cache flushes on zfs side then (or make a
firmware change work) and it will make a difference.
If you're running recent OpenSolaris/Solaris/SX builds you shouldn't have to
disable cache flushing on the array. The driver stack should set the correct
modes.
Whatever Sun did with this new firmware (and of course the zfs
enhancements) did wonderful things.
This is the type of performance I am now seeing from the six mirror
pairs:
Synchronous random writes with 8k blocks and 8 writers:
3708.89 ops/sec
Large file write:
359MB/second
Large file read:
550MB/second
All of which is much better than before.
Bob
--
Bob Friesenhahn
[email protected], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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