From: | Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Robert <robert(at)robert(dot)cz> |
Cc: | pgsql-general(at)postgreSQL(dot)org |
Subject: | Re: [GENERAL] 6.5 connection time: too slow (?) |
Date: | 1999-11-03 22:59:34 |
Message-ID: | 199911032259.RAA11625@candle.pha.pa.us |
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Thread: | |
Lists: | pgsql-general |
[Charset iso-8859-2 unsupported, filtering to ASCII...]
> Hi,
>
> I'm finally about to upgrade our prehistoric 6.1 to 6.5.2 and took few
> hours to do some highly unscientific (Perl/DBI) benchmarking just to see
> the difference... I was quite shocked when I found out that PG6.1 (on
> Linux 2.0.34, loaded K6/166 server) was consistently three times faster
> when connecting to the database then latest PG6.5.2 (on Linux 2.2.12,
> unloaded P2/233, faster disk). The difference was 0.102-0.108 sec vs.
> 0.293-0.296 sec. For web usage, this is quite slow, even if actual
> execute is usually fast enough (0.05-0.15 sec). Does anybody have any
> idea what's going on? Specifically, is it possible RedHat 6.1 RPM I'm
> using was compiled with some stupid switch that slows things down? Any
> advices how to speed things up?
>
> P.S. Apache::DBI is not of much use here, because I'm using 6+ different
> databases, so it would keep six backends per http child... Thanks for
> your comments.
Very strange. Same postmaster flags? I can't imagine what it would be?
We really have been improving performance, including startup
performance.
--
Bruce Momjian | http://www.op.net/~candle
maillist(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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