| From: | Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | tgl(at)sss(dot)pgh(dot)pa(dot)us (Tom Lane) |
| Cc: | pgsql-hackers(at)postgreSQL(dot)org |
| Subject: | Re: [HACKERS] Anyone understand shared-memory space usage? |
| Date: | 1999-02-21 19:28:52 |
| Message-ID: | 199902211928.OAA19937@candle.pha.pa.us |
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| Lists: | pgsql-hackers |
Does the bottom of the backend flowchart help?
> It used to be that Postgres' shared memory was sized on the basis of
> the hard-wired MaxBackendId constant. I have altered things so that
> it is sized on the basis of the actual -N switch given to the postmaster
> at postmaster start time. This makes it a lot easier to stress the
> algorithm ;-), and what I find is that it ain't too robust.
--
Bruce Momjian | http://www.op.net/~candle
maillist(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
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