Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!olivea!uunet!mcsun!ukc!acorn!ixi!ixi!pd From: pd@x.co.uk (Paul Davey) Newsgroups: comp.unix.wizards Subject: Re: Paging/Swapping Message-ID: Date: 28 Jun 91 10:47:22 GMT References: Sender: paul@x.co.uk (Paul Davey) Organization: IXI Ltd. Lines: 22 In-Reply-To: israel@saturn.informatik.tu-chemnitz.de's message of 26 Jun 91 08: 46:54 GMT >>>>> On 26 Jun 91 08:46:54 GMT, israel@saturn.informatik.tu-chemnitz.de (Andreas Israel) said: Andreas> Now my question: If you have a computer with, for instance 48 MByte RAM, Andreas> what amount of swap space is needed? Is any swap space size less than Andreas> 48 MByte of much use (or of none, if the formula above is still right). Andreas> Any ideas how the amount of swap space should be computed and how Andreas> UNIX kernels compute upper limits (esp. for HP-UX and SunOS) I can't help with the kernal computations but you should have more swap than physical RAM, normally a factor of 1.5 to 2 times, more if you have memory heavy applications, eg lots of gnu-emacs's, CAD, expert systems etc. -- Regards, pd@x.co.uk IXI Limited Paul Davey pd@ixi.uucp 62-74 Burleigh St. ...!uunet!ixi!pd Cambridge U.K. "These are interesting times" +44 223 462 131 CB1 1OJ USA: 1 800 XDESK 57