Re: [HACKERS] shared memory 651, freebsd 2.2.7 - Mailing list pgsql-hackers

From Tom Lane
Subject Re: [HACKERS] shared memory 651, freebsd 2.2.7
Date
Msg-id 5538.938648894@sss.pgh.pa.us
Whole thread Raw
In response to shared memory 651, freebsd 2.2.7  (Jason Venner <jason@idiom.com>)
List pgsql-hackers
Jason Venner <jason@idiom.com> writes:
> How much shared memory do you need?

What's probably getting you is the SEMMNS & SEMMNI limits --- we need a
semaphore per backend, and an identifier for every 16 semas.

I thought there was a discussion of kernel resource settings
somewhere in the documentation, but I'm not sure where offhand.
        regards, tom lane


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