Re: Sun performance - Major discovery!

From: Neil Conway <neilc(at)samurai(dot)com>
To: Jeff <threshar(at)torgo(dot)978(dot)org>
Cc: PostgreSQL Performance <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Sun performance - Major discovery!
Date: 2003-10-08 14:52:39
Message-ID: 1065624759.377.20.camel@tokyo
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers 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

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Tom Lane 2003-10-08 14:56:30 Re: [HACKERS] Cannot dump/restore text value \N
Previous Message Matthew T. O'Connor 2003-10-08 14:52:25 Re: Disabling function validation

Browse pgsql-performance by date

  From Date Subject
Next Message Greg Stark 2003-10-08 14:54:24 Re: Speeding up Aggregates
Previous Message Andrew Sullivan 2003-10-08 14:48:55 Re: Sun performance - Major discovery!