> Another point that I should bring up in regards to swap performance: > systems that require good swap performance will almost always have > more then one physical disk to swap to. FreeBSD is very good at > paging to swap with a single disk, but it kicks ass paging to swap > with multiple disks because it implements a very good interleaving > algorithm.
I think it's also useful to point out that the performance of this test is likely going to vary greatly as it is run. This is because it is heavily affected by the order of the pageouts in terms of their physical swap block allocations. In other words, what you're really testing is how sequentially the blocks are paged out vs. how randomly at the swap block level. -DG David Greenman Co-founder, The FreeBSD Project - http://www.freebsd.org President, TeraSolutions, Inc. - http://www.terasolutions.com President, Download Technologies, Inc. - http://www.downloadtech.com Pave the road of life with opportunities. To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
