A recent comment on this (or perhaps another?) mailing list about Sun boxen
and the directio mount option has prompted me to read about O_DIRECT on the
open() manpage.
Has anybody tried this option? Ever taken any performance measurements?
I assume the way postgres manages its buffer memory
Hello.
Couple of questions:
- Q1: Today I decided to do a vacuum full verbose
analyze on a large table that has been giving me slow performance. And
then I did itagain. I noticed that after each run the values in my
indexes and estimate row versionchanged. What really got me
wondering