On Fri, 30 Nov 2007 19:34:02 -0300 Alvaro Herrera <alvherre@xxxxxxxxxxxxxx> wrote: > Joshua D. Drake escribió: > > > Autovacuum is a great utility for many workloads but even with the > > upcoming changes I will continually find myself turning off > > autovacuum for specific relations just so I can turn around and > > turn on vacuum within cron for others. > > > > The multi-worker autovacuum is a great new addition to help part of > > that problem (starvation) but it is not help against the other > > (resource consumption, specifically IO). > > Huh, autovac will consume exactly the same amount of I/O as a > user-induced vacuum, so I don't see your point. It can be determined "when" the I/O is used. > Remember, we're not adding VACUUM SCHEMA in 8.2 so it doesn't make any > sense to try to compare it against the old autovac. And you can bet > that in 8.4 autovac will have even more goodies. > I assume you mean 8.3, but that is certainly a valid point. Sincerely, Joshua D. Drake
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