I've set swappiness to 5 on three 4.3 servers with current kernel and which each have a lot of memory and I noticed an improvement. I'm pretty tempted to test with 1 as I'd really like the server to swap once it's getting really low on physical memory...but the boss is too cheap to buy another server to test on :P
On 6/20/06, William L. Maltby BillsCentOS@triad.rr.com wrote:
On Tue, 2006-06-20 at 13:51 -0400, Barry L. Kline wrote:
Alexander Georgiev wrote:
There is plenty of free ram, but the kernel prefers to swap unused pages to disk. And later I have to wait for them to be unswapped, the Desktop looses its promptness - annoying.
<snip>
Since we are talking desktops now, I'll mention that since I made the adjustments to my node that I mention in the thread Jim mentions, I have not seen more than 160k in swap used. And I did not futz with swappiness or any other parameter. Prior to those changes, under "heavy" load (e.g. multiple browsers for multiple users open, multiple mail sessions (evo and tbird),... I would see severe swap and degradation after a couple of days. Since the changes, in over a week of not rebooting, never more than 160k swapped.
I guess I ought to find what it is and get rid of it too, but seems unworthy of the effort.
HTH
Bill
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