From: | Vivek Khera <khera(at)kcilink(dot)com> |
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To: | pgsql-performance(at)postgresql(dot)org |
Subject: | Re: Tunning FreeeBSD and PostgreSQL |
Date: | 2003-07-22 14:20:19 |
Message-ID: | 16157.18467.310482.384436@yertle.int.kciLink.com |
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Lists: | pgsql-performance |
>>>>> "BM" == Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
>> not anything pre-allocated (from my understanding). These settings
>> allow for up to 100,000 shared buffers (I currently only use 30,000
>> buffers)
BM> I think the only downside to making them too big is that you allocate
BM> page tables and prevent that address range from being used by other
Does this apply in general or just on FreeBSD?
BM> processes. Of course, if you have much less than 4 gigs of RAM in the
BM> machine, it probably isn't an issue.
Probably, but wasting page table entries is never a good idea...
--
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Vivek Khera, Ph.D. Khera Communications, Inc.
Internet: khera(at)kciLink(dot)com Rockville, MD +1-240-453-8497
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