Re: [GENERAL] memory

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> Thanks Philip and Bruce,
> Re shared mem, I have increased the BSDI kernel conf from 1024 to 2048
> shared mem pages. This allowed me to increase -B from 448 to 896 (not 884 my
> error). These are the high values I can reach without postgres failing to
> boot. This suggests my memory pages are around 3K - impossible but
> interesting.

Pages are 4k.

>
> I will try to increase sharedmem in the kernel after this msg. What does
> postgres use shared mem for? How can I determine how much shared mem is
> appropriate for the jobs I want to do?

BSDI has very small shared memory defaults.

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