Scott Marlowe <scott.marlowe@xxxxxxxxx> writes: > In this: > Mem: 16432240k total, 16344596k used, 87644k free, 27548k buffers > Swap: 10241428k total, 3680860k used, 6560568k free, 6230376k cached > The 6.2G cached is considered part of the 16G used > So it's not using more memory than it has. It's just the accounting > is inobvious. Right, but it still appears that there's something close to 14G of actual memory use (exclusive of kernel disk buffers). If that's the true requirement of the set of processes being run, 16G of RAM is pretty darn marginal, and he should go buy more. But first it would be prudent to find out where the memory is going. Also, one thing I'd do immediately is to watch "vmstat 1" for awhile to see if there's a lot of swap activity. If that's where the I/O is going, it'd be another signal that memory pressure is the real issue. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general