> > In OS kernel design, you try to avoid process herding bottlenecks.
> > Here, we want them herded, and giving up the CPU may be the best way to
> > do it.
>
> Yes, but if everyone yeilds you're back where you started, and with
> 128 or more backends do you really want to cause possibly that many
> context switches per fsync?
You are going to kernel call/yield anyway to fsync, so why not try and
if someone does the fsync, we don't need to do it. I am suggesting
re-checking the need for fsync after the return from sleep(0).
-- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610)
853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill,
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