> select count(*) from mtable where day='Mon'
> 1. P3 600 512MB RAM MSSQL. It takes about 4-5 secs to
> run. If I run a few queries and everything is cached,
> it is sometimes just 1 second.
> 2. Athlon 1.3 Ghz 1GB RAM. PostgreSQL takes 7 seconds.
> I have played with the buffers setting and currently
> have it at 7500. At 20000 it took over 20 seconds to
> 5 seconds vs 7 isn't that big of a deal, but 1 second
> vs 7 seconds is. Also, the slower performance is with
> much lesser hardware.
Post the result of this for us:
explain analyze select count(*) from mtable where day='Mon';
On both machines.
In response to
pgsql-performance by date
|Next:||From: mark durrant||Date: 2005-05-24 06:40:34|
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