Re: linux, memory (mis)accounting/reporting, and the planner/optimizer

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On Wed, 21 Jan 2009, Dave Youatt wrote:

Does it just accept the configuration parameters provided (e.g. --
shared_buffers, effective_cache_size, etc.)?

That's it. The only time PostgreSQL gets a report from the OS related to memory is if it makes an allocation attempt that fails. Couldn't care less what Linux thinks the rest of the time--unless the OOM killer goes on a rampage, counts shared memory badly, and decides to kill a database process that is.

--
* Greg Smith gsmith@xxxxxxxxxxxxx http://www.gregsmith.com Baltimore, MD

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