Re: Memory and/or cache issues? - Mailing list pgsql-performance

From Michael Stone
Subject Re: Memory and/or cache issues?
Date
Msg-id 20060505142342.GH16533@mathom.us
Whole thread Raw
In response to Re: Memory and/or cache issues?  ("mcelroy, tim" <tim.mcelroy@bostonstock.com>)
List pgsql-performance
On Fri, May 05, 2006 at 09:57:58AM -0400, mcelroy, tim wrote:
>Are you saying the kernel's disc cache may be getting whacked?  No, I
>understand that PG should use as much memory as it can and the system as
>well.  The main problem here is that with almost all the 8GB of RAM 'in use'
>when I try to do a pg_dump or vacuumdb I run out of memory and the system
>crashes....

You need to be way more specific about what "in use" means. Try pasting
the output of actual commands like "free". The main problem here
according to the output you sent is that your process is trying to
allocate 10billion terabytes of RAM (which ain't gonna work) and dies.
That is not a memory issue.

Mike Stone

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