Re: Sun performance - Major discovery! - Mailing list pgsql-performance

From Neil Conway
Subject Re: Sun performance - Major discovery!
Date
Msg-id 1065624759.377.20.camel@tokyo
Whole thread Raw
In response to Sun performance - Major discovery!  (Jeff <threshar@torgo.978.org>)
Responses Re: Sun performance - Major discovery!
Re: Sun performance - Major discovery!
List pgsql-performance
On Wed, 2003-10-08 at 08:36, Jeff wrote:
> So here's the results using my load tester (single connection per beater,
> repeats the query 1000 times with different input each time (we'll get
> ~20k rows back), the query is a common query around here.

What is the query?

> Linux - 1x - 35 seconds, 20x - 180 seconds

"20x" means 20 concurrent testing processes, right?

> Sun - gcc - 1x 60 seconds  20x 245 seconds
> Sun - sunsoft defaults - 1x 52 seonds 20x [similar to gcc most likely]
> Sun - sunsoft -fast  - 1x 28 seconds  20x 164 seconds

Interesting (and surprising that the performance differential is that
large, to me at least). Can you tell if the performance gain comes from
an improvement in a particular subsystem? (i.e. could you get a profile
of Sun/gcc and compare it with Sun/sunsoft).

-Neil



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