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Newsgroups: comp.unix.bsd.bsdi.misc Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!nntp.coast.net!chi-news.cic.net!usc!howland.reston.ans.net!blackbush.xlink.net!news.ppp.net!news.Hanse.DE!wavehh.hanse.de!cracauer From: cracauer@wavehh.hanse.de (Martin Cracauer) Subject: Re: BSDI 2.0.1 swapspace leak fix? Message-ID: <1995Dec16.130108.23996@wavehh.hanse.de> Organization: BSD User Group Hamburg References: <4a0hk0$20d@news2.ucsd.edu> <4aa9mf$6pr@picasso.op.net> <4aaehi$eav@moon.igcom.net> <4afu71$ai@picasso.op.net> <4akj9p$5m2@helena.MT.net> <4amvp8$eqs@web.ddp.state.me.us> Date: Sat, 16 Dec 95 13:01:08 GMT Lines: 33 isdmill@gatekeeper.ddp.state.me.us (David Miller) writes: >Nate Williams (nate@trout.sri.MT.net) wrote: >: In article <4afu71$ai@picasso.op.net>, >: Bruce Momjian <root@candle.pha.pa.us> wrote: >: >David Bauman (david@terra.igcom.net) wrote: >: [ Swap space leak ] >: >I worked with Mike Karels to identify the bug in 1.0. He has looked >: >into it and talked to the initial Mach developer and the solution is not >: >easy. It exists in all 386 BSD implementions as far as I know. >: It is fixed in FreeBSD by completely re-writing the VM system from >: scratch. Along with this a whole hoard of bugs were fixed when the VM >: buffer cache and free memory pool became integrated as well. I/O >: performance of FreeBSD systems really scream now. :) >What version of FreeBSD? 2.1? Reworking the VM system is a long-term process. FreeBSD-2.0.5 has most of the new functionalty and solutions for most problems of the Mach/4.4BSD-VM-system, but progress is still made. BTW, I/O-Performance is relative. Paging and filesystem buffers are really fast on FreeBSD, but low-level SCSI and the filesystem itself in FreeBSD-2.1 and NetBSD-1.1/i386 are exactly of the same speed. Martin -- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Martin Cracauer <cracauer@wavehh.hanse.de> - Fax +49 40 522 85 36 BSD User Group Hamburg, Germany - No NeXTMail anymore, please. Copyright 1995. Redistribution via Microsoft Network is prohibited