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Re: 8.0.X and the ARC patent

From: Michael Adler <adler(at)pobox(dot)com>
To: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Cc: Mark Wong <markw(at)osdl(dot)org>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>,Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, pgsql(at)mohawksoft(dot)com
Subject: Re: 8.0.X and the ARC patent
Date: 2005-03-02 18:45:15
Message-ID: 20050302184515.GB13039@pobox.com (view raw or flat)
Thread:
Lists: pgsql-hackers
On Wed, Mar 02, 2005 at 07:21:41AM -0800, Mark Wong wrote:
> Ah, ok.  I've reapplied the 2Q patch to CVS from 20050301:
> 	http://www.osdl.org/projects/dbt2dev/results/dev4-010/313/
> 
> I ran it for 3 hours, just in case, and the charts suggest it flattens
> out after 2 hours.

Looking at the "Response Time Charts" 

8.0.1/ARC
http://www.osdl.org/projects/dbt2dev/results/dev4-010/309/rt.html

20050301 with 2Q patch
http://www.osdl.org/projects/dbt2dev/results/dev4-010/313/rt.html

It seems like the average response time has gone down, but the worse
case ceiling has raised about 35%.

 -Mike

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