Re: 8.2 is 30% better in pgbench than 8.3

Pavel Stehule wrote:
> Hello,
> 
> I checked my tests again I have different results. Now I tested
> PostgreSQL on dedicated server. Now 8.3 is about 20% faster. I didn't
> see strong  impression of autovacuum.  All numbers are approximate
> only. I did pgbench 3x for folowing configuration: (autovacuum on,
> autovacuum off, statistics off) and for -tntransaction (100, 1000,
> 4000)

In other news, 8.3 with current HOT is 13% faster than 8.2 at TPCE in 
the first 1/2 hour.  Performance does not fall over 5 hours of test run, 
and most of the main tables never have autovacuum triggered at all. 
Unfortnately, we don't yet have a 5-hour 8.2 run to compare 
last-half-hour performance.

--Josh