[zfs-code] Performance of partition based SWAP vs. ZFS zvol SWAP

RayLicon
2010-01-27T19:42:51Z

Has anyone done research into the performance of SWAP on the traditional
partitioned based SWAP device as compared to a SWAP area set up on ZFS with a
zvol?

 I can find no best practices for this issue. In the old days it was considered
important to separate the swap devices onto individual disks (controllers)  and
select the outer cylinder groups for the partition (to gain some read speed).
How does this compare to creating a single SWAP zvol within a rootpool and then
mirroring the rootpool across two separate disks?
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