Article View: comp.sys.next.misc
Article #593Re: Swapfile Question
From: Comrade D
Date: Sat, 01 Aug 1992 18:58
Date: Sat, 01 Aug 1992 18:58
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eps@futon.SFSU.EDU (Eric P. Scott) writes: > UNIX is perfectly happy with "holey" (sparse) files. All that's > needed to satisfy the swapfile weenies is a mechanism to > deallocate arbitrary file blocks and return them to the free > space. Clearly there are performance advantages to holding > onto unreferenced swapfile pages for a while, and there > should probably be something besides lowat governing swapfile > shrinking (and perhaps a way for a user to force minimize-NOW!). > > -=EPS=- > -- > Why "modern" operating systems haven't caught up to what, say, > TOPS-20 offered in the 1970s(!) defies rational explanation. Absolutely correct. This "swapfile weenie" would bmost happy if the "holes" in the swapfile were reused, and if the swapfile were truncated when pages at the end where freed. This is exactly what we want. Keep the dynamic swap-space idea, but lose the was. Rebooting constantly is pathetic! ------------------------------------------------------------------- Dylan Kohler dylan@angst.com (NeXTmail welcome)
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Path: arc1-ca.pugleaf.net!sparky!uunet!usc!elroy.jpl.nasa.gov!midiline!dylan From: dylan@midiline.la.ca.us (Comrade D) Newsgroups: comp.sys.next.misc Subject: Re: Swapfile Question Message-ID: <V8cuoB1w165w@midiline.la.ca.us> Date: Sat, 01 Aug 92 11:58:18 PDT References: <1992Jul22.101401.1999@csus.edu> Organization: MIDILine BBS - Altadena, CA - (818) 797-3285 Lines: 27