Re: Default shared memory SGML mention - Mailing list pgsql-docs

From Tom Lane
Subject Re: Default shared memory SGML mention
Date
Msg-id 7775.989352308@sss.pgh.pa.us
Whole thread Raw
In response to Re: Default shared memory SGML mention  (Bruce Momjian <pgman@candle.pha.pa.us>)
List pgsql-docs
Bruce Momjian <pgman@candle.pha.pa.us> writes:
>> A little experimentation shows that the present multiplier for -B is
>> about 8350 bytes and the multiplier for -N about 14580 bytes on my
>> system (HPUX), which extrapolates to a fixed base of about 250K plus
>> the -B and -N contributions.  In reality I believe the computation
>> is somewhat nonlinear, but that's probably close enough for starters.

> I have updated the SGML sources to say for default shared memory values:

>     250 kB + 8192 * buffers or infinity

How did infinity get into this?  And what happened to the -N
contribution?

            regards, tom lane

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