Tuning for PostGreSQL Database
cweimann at k12hq.com
Tue Jul 22 13:56:51 PDT 2003
On Tue 07/22/2003-03:19:33PM -0400, Michael Conlen wrote:
> >>From loader(8):
> > kern.maxbcache
> > Limits the amount of KVM reserved for use by the buffer
> > cache, specified in bytes. The default maximum is 200MB.
> > This parameter is used to prevent the buffer cache from
> > eating too much KVM in large-memory machine configurations.
> > Only mess around with this parameter if you need to greatly
> > extend the KVM reservation for other resources such as the
> > swap zone or NMBCLUSTERS. Note that the NBUF parameter
> > will override this limit. Modifies VM_BCACHE_SIZE_MAX.
> Aren't we talking about two different things here, the buffer cache and
> the inactive pages?
I think this article clarifies it somewhat but it is a bit old...
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