Re: Strange performance issue

On 26 Nov 2001 at 08:04 (-0800), Mike Harding wrote:
|
| I am using FreeBSD-4.4-STABLE, cvsup'd last weekend, and the version
| is 7.1.3 as reflected in the FreeBSD port system.
|
| I can try with 7.2beta, but it might be awkward as I only have a
| dial-up line... if somebody with 7.2 already installed could try this,
| you will almost certainly beat me to results.

Testing your case with postgres 7.2b3 on FBSD 4.4-STABLE, I do not
see what you described.  Below is a copy of top(1) running while
running two instances of your script.

 9507 brent     41   0  5172K  3376K RUN      0:11 37.17% 28.47% postgres
 9508 brent     41   0  5172K  3376K RUN      0:11 36.98% 28.32% postgres
 9506 brent      2   0  4196K  3072K select   0:02  5.42%  4.15% perl
 9505 brent      2   0  4196K  3072K select   0:02  4.85%  3.71% perl

running the same against 7.1.3 top(1) shows

 9575 pgsql     -4   0  6044K  3480K semwai   0:04  0.88%  0.88% postgres
 9574 pgsql     -4   0  6044K  3484K semwai   0:04  0.73%  0.73% postgres
 9580 pgsql     -4   0  6044K  3484K semwai   0:01  0.70%  0.68% postgres
 9579 pgsql      2   0  6044K  3484K select   0:01  0.15%  0.15% postgres


cheers.
  brent

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