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Re: 8.4 open item: copy performance regression?

From: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
To: "Stefan Kaltenbrunner" <stefan(at)kaltenbrunner(dot)cc>, "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "PostgreSQL-development" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: 8.4 open item: copy performance regression?
Date: 2009-06-18 22:33:24
Message-ID: 4A3A7A640200002500027DC6@gw.wicourts.gov (view raw or flat)
Thread:
Lists: pgsql-hackers
Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote: 
> Stefan Kaltenbrunner <stefan(at)kaltenbrunner(dot)cc> writes:
>> Any objections if I add:
>>
http://archives.postgresql.org/pgsql-performance/2009-06/msg00215.php
>> to the (currently empty) list of open items for 8.4?
> 
> I am unable to duplicate any slowdown on this test case.  AFAICT
> 8.4 and 8.3 branch tip are about the same speed; if anything 8.4
> is faster.  Testing on x86_64 Fedora 10 ...
 
I just ran the specified test on:
 
Linux ATHENA 2.6.16.60-0.31-smp #1 SMP Tue Oct 7 16:16:29 UTC 2008
x86_64 x86_64 x86_64 GNU/Linux
Linux version 2.6.16.60-0.31-smp (geeko(at)buildhost) (gcc version 4.1.2
20070115 (SUSE Linux)) #1 SMP Tue Oct 7 16:16:29 UTC 2008
SUSE Linux Enterprise Server 10 (x86_64)
VERSION = 10
PATCHLEVEL = 2
 
I did configure with a prefix and these options:
 
 --enable-integer-datetimes --enable-debug --disable-nls --with-libxml
 
I did initdb with --no-locale
 
8.3.7
real    0m24.249s
real    0m24.054s
real    0m24.361s
 
8.4rc1
real    0m33.503s
real    0m34.198s
real    0m33.931s
 
-Kevin

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Subject: Re: 8.4 open item: copy performance regression?
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