Обсуждение: how test postgresql.conf settings?

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how test postgresql.conf settings?

От
Arnau
Дата:
Hi all,

   I'm testing different configurations of postgresql 8.1 running on
debian. The method I was following was:
   - change the postgresql.conf
   - restart postgres (/etc/init.d/postgresql restart )
   - execute my test queries

  I have noticed that this is not enough to flush the cache, I don't
know where it is, if at the raid controller, at OS or at postgresql
itself. Reboot the machine I don't think it's a good solution because it
takes quite long. Do you have any suggestion? BTW is there any tool to
stress the DB, I mean, create a set of queries to execute and throw a
configurable set of concurrent connections to check the performance?


Thanks to all