-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 04/30/08 09:40, Douglas A. Tutty wrote: > On Tue, Apr 29, 2008 at 10:28:53PM -0500, Ron Johnson wrote: >> On 04/29/08 22:04, Douglas A. Tutty wrote: >>> On Thu, Apr 24, 2008 at 11:06:25AM -0500, Ron Johnson wrote: >>>> On 04/24/08 10:09, Hugo Vanwoerkom wrote: >>>>> Ron Johnson wrote: >>>>>> On 04/24/08 01:34, Rich Healey wrote: >>>>> http://en.wikipedia.org/wiki/Paging >>>> I use "swap" in the generic sense, but really mean "page". Does >>>> Linux even *do* process swapping? >>> I've never seen Linux swap out idle processes. >> I'm surprised. Seems to me that an idle process and it's allocated >> memory would be the *perfect* candidates to be swapped out. And >> anthropomorphized vm systems might say, "I need RAM, and you're >> 5,000 pages are the least recently used, so I'll just push you on >> out to disk to make room for actively used data." > > Sure it would make sense; other Unix's do, but I've never seen Linux > swap out, e.g. idle gettys or bash, or even idle exim4s (which would > make sense for a dial-up box that only uses exim during daily email > checks and cron runs).
Hmmm, I see the communication disconnect. You are correct that it won't swap out whole processes in one fell swoop. But an idle process on a memory-constrained system could *effectively* see itself swapped out a few pages at a time, as the kernel sees that those pages are haven't been used in a while. - -- Ron Johnson, Jr. Jefferson LA USA We want... a Shrubbery!! -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFIGInRS9HxQb37XmcRAgJdAKDYxP/ST2uyfIoyZ8XAbkzlBJGVGwCfQYIY sxiZyg0P2cQxCiUDjXGUvVo= =fzj5 -----END PGP SIGNATURE----- -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
