Re: Bgwriter LRU cleaning: we've been going at this all wrong

Gregory Stark <stark@enterprisedb.com> writes:
> If we find it's overkill then what we should consider doing is raising
> BM_MAX_USAGE_COUNT. That's effectively tuning the percentage of the lru chain
> that we decide we try to keep clean.

Yeah, I don't believe anyone has tried to do performance testing for
different values of BM_MAX_USAGE_COUNT.  It would be interesting to
try that after all the dust settles.
        regards, tom lane