On 6/15/07, Gregory Stark <[EMAIL PROTECTED]> wrote:
While in theory spreading out the writes could have a detrimental effect I
think we should wait until we see actual numbers. I have a pretty strong
suspicion that the effect would be pretty minimal. We're still doing the same
amount of i/o total, just with a slightly less chance for the elevator
algorithm to optimize the pattern.
..and the sort patching suggests that the OS's elevator isn't doing a
great job for large flushes in any case. I wouldn't be shocked to see
load distributed checkpoints cause an unconditional improvement since
they may do better at avoiding the huge burst behavior that is
overrunning the OS elevator in any case.
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