lai yoke hman wrote:

> How can I know my PostgreSQL 8 is using direct I/O or buffered I/O? If
> using buffered I/O, how can I enable direct I/O? What is the
> performance difference of them?

1. it is buffered
2. you can't
3. there isn't any because there isn't direct I/O

Unless you mess with the filesystem features, at which point I shut up
or they shut me down.

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.

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