Bruce Momjian <pgman@candle.pha.pa.us> writes:
> Well, then what real options do we have? It seems the patch is just
> required for all branches.
I think it would be possible to fix it in a less invasive way by taking
and releasing the ControlLock an extra time in SimpleLruReadPage and
SimpleLruWritePage. What's indeterminate about that is the performance
cost. In situations where there's not a lot of SLRU I/O traffic it's
presumably negligible, but in a case like Jim's where there's evidently
a *whole* lot of traffic, it might be a killer.
regards, tom lane
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