On Mon, 12 Apr 2010, David Magda wrote:

Except that ZFS does not overwrite blocks because it is copy-on-write.

At some time in the (possibly distant) future the ZFS block might become free and then the Windows 7 TRIM command could be used to try to pre-erase it. This might help an intermittent benchmark. Of course, the background TRIM commands might clog other on-going operations so it might hurt the benchmark.

Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
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