Tom Lane wrote:
Josh Berkus <josh@agliodbs.com> writes:
I've been trying to get a test result for 8.1 that shows that we can eliminate
commit_delay and commit_siblings, as I believe that these settings no longer
have any real effect on performance.
I don't think they ever did :-(. The theory is good, but useful values
for commit_delay would probably be under a millisecond, and there isn't
any portable way to sleep for such short periods. We've been leaving
them there just in case somebody can find a use for 'em, but I wouldn't
object to taking them out.
regards, tom lane
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We have done extensive testing some time ago.
We could not see any difference on any platform we have tested (AIX,
Linux, Solaris). I don't think that there is one at all - at least not
on common systems.
best regards,
hans
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www.cybertec.at, www.postgresql.at
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