| From: | Kenneth Marshall <ktm(at)rice(dot)edu> |
|---|---|
| To: | Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, 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 12:40:00 |
| Message-ID: | 20090619124000.GH23785@it.is.rice.edu |
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| Lists: | pgsql-hackers |
Yes, you are right. I thought that they were absolute function
counts. The data makes more sense now.
Regards,
Ken
On Thu, Jun 18, 2009 at 07:03:34PM -0500, Kevin Grittner wrote:
> 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
>
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