On Mon, 2007-04-02 at 21:38 -0700, Luke Lonergan wrote:
> Jeff,
>
> Your conclusions sound great - can you perhaps put the timings in a column
> in your table so we can confirm them?
>
I just threw the logs up, which contain the timings involved. I will try
to make graphs out of them, but the data is there.
The logs contain:
* The time a given backend fetches a page, if that page is an even
multiple of 5k
* The duration of a scan
* The time the scan started
* The cache hit ratio as reported by log_executor_stats
Your right, I do need to summarize it and make it more visually
accessible.
Regards,Jeff Davis