well, according the document it is not like that:
"It's likely you will have to increase the amount of memory your operating
system allows you to allocate at once..."
I understand it as I need to set that value somewhere in OS..?
I have problem, that our database is big, server has 4GB of ram, and
about 70% of ram is free... At the same time I have some 20-30 busy
connections to Postgres, and it works slow... For me seems like tunable
> On Mon, Dec 05, 2011 at 10:24:17PM +0200, Lukas wrote:
>> I found such note in wiki of Postgresql
>> (http://wiki.postgresql.org/wiki/Tuning_Your_PostgreSQL_Server ):
>> Note that on Windows (and on PostgreSQL versions before 8.1), large
>> for shared_buffers aren't as effective, and you may find better results
>> keeping it relatively low and using the OS cache more instead.
>> Can anyone tell how OS cache should be increased on windows server?
> I think that like Linux it is not a tunable setting. The OS will us
> as much memory as it can while still meeting the memory resource needs
> of the applications running on the machine. The upshot is -- buy more
> memory. The take-away from the above doc quote is to drop the amount
> of shared_buffers for PostgreSQL, since you can control that.
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