The following is some notes i have around the parameters i usually use during testing. There is a good document at ixbt labs on the various tests and settings….
For a 1GB test set the sectors to : 2048000
Typical benchmarks; (which you will need to add)
128K 100% Read - Sequential
128K 100% Write - Sequential
Remember to bump the workers up to 5 or so. You can set the mixes across all the workers if you select the PC object.
Since im using ZFS as storage via NFS for my some of my vmware environments i need to ensure that latency on my disk is reduced where ever possible.
There is alot of talk about ZFS compression being “faster” than a non-compressed pool due to less physical data being pulled off the drives. This of course depends on the system powering ZFS, but i wanted to run some tests specifically on latency. Throughput is fine in some situations, but latency is a killer when it comes to lots of small reads and writes (in the case of hosting virtual machines)