On Mon, Jun 04, 2001 at 07:18:57PM +0100, Corin Hartland-Swann wrote:
> On Mon, 4 Jun 2001, Luca Berra wrote:
> > On Mon, Jun 04, 2001 at 05:13:11AM +0100, Corin Hartland-Swann wrote:
> What I really hate is the recommendations that you should always have
> twice as much swap as main memory. I recently tried out FreeBSD on a box
> with 4096M RAM. When I hit auto-allocate (or some such) it gave me 8192M
> swap! As soon as main programs head into swap thrashing ensues and your
> server goes to hell :(
Some unices (i know of HP-UX) and W.NT insist on allocating enough space on
swap to fully swap out any process, so you cannot allocate 1Gb ram if you don't
have at least 1Gb swap (the other 1Gb is what would be really used as normal
swap) [linux is not the case]
Besides that other unices do use swap as a dump device, i know sgi is adding dump
support to linux, but i have never seen it working.
Lastly some application software do seem to allocate enormous quantities of memory
(sap reccomends about 3 time the system memory for swap, no this figure is not given
any amount of menory)
Regards,
L.
--
Luca Berra -- [EMAIL PROTECTED]
Communication Media & Services S.r.l.
/"\
\ / ASCII RIBBON CAMPAIGN
X AGAINST HTML MAIL
/ \
-
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to [EMAIL PROTECTED]
