Re: 8.4 open item: copy performance regression?

From: "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov>
To: "Kenneth Marshall" <ktm(at)rice(dot)edu>,"Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "Stefan Kaltenbrunner" <stefan(at)kaltenbrunner(dot)cc>, "PostgreSQL-development" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: 8.4 open item: copy performance regression?
Date: 2009-06-19 00:03:34
Message-ID: 4A3A8F860200002500027DD9@gw.wicourts.gov
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

Kenneth Marshall <ktm(at)rice(dot)edu> wrote:

> What is not clear from Stefen's function listing is how the 8.4
> server could issue 33% more XLogInsert() and CopyReadLine()
> calls than the 8.3.7 server using the same input file.

I thought those were profiling numbers -- the number of times a timer
checked what was executing and found it in that method. Which
suggests that those two methods are probably slower now than in 8.3.7,
at least in some environments.

-Kevin

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Jeremy Ford 2009-06-19 01:21:32 BUG #4862: different results in to_date() between 8.3.7 & 8.4.RC1
Previous Message Kevin Grittner 2009-06-18 23:59:01 Re: 8.4 open item: copy performance regression?