From owner-freebsd-hackers Tue Jul 13 14:17:29 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from apollo.backplane.com (apollo.backplane.com [209.157.86.2]) by hub.freebsd.org (Postfix) with ESMTP id 80C5E1535A; Tue, 13 Jul 1999 14:17:19 -0700 (PDT) (envelope-from dillon@apollo.backplane.com) Received: (from dillon@localhost) by apollo.backplane.com (8.9.3/8.9.1) id OAA80834; Tue, 13 Jul 1999 14:16:54 -0700 (PDT) (envelope-from dillon) Date: Tue, 13 Jul 1999 14:16:54 -0700 (PDT) From: Matthew Dillon Message-Id: <199907132116.OAA80834@apollo.backplane.com> To: Noriyuki Soda Cc: Jason Thorpe , "Brian F. Feldman" , Noriyuki Soda , bright@rush.net, dcs@newsguy.com, freebsd-hackers@FreeBSD.ORG, jon@oaktree.co.uk, tech-userlevel@netbsd.org Subject: Re: Replacement for grep(1) (part 2) References: <199907131753.KAA22111@lestat.nas.nasa.gov> <199907131813.LAA79534@apollo.backplane.com> <199907132107.GAA14750@srapc342.sra.co.jp> Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG : :>>>>> On Tue, 13 Jul 1999 11:13:49 -0700 (PDT), : Matthew Dillon said: : :> Doh! Even solaris doesn't overcommit - you think it actually :> reserves data blocks for its file-backed swap? Bzzt! It uses :> an overcommit model too. : :Unlike 4.4BSD derived VM, Solaris VM has a way to reserve backing store. :-- :soda ... and it doesn't mean squat. What, the absolutely critical server that you are trying to run decides to exit because it can't guarentee sufficient backing store? First of all, this situation simply does not occur in a properly configured system. Secondly, for such a server to fail to run is just as bad as if the system were to run out of swap. IRIX has a swap reservation flag too, a left-over from the SysV days. It is a totally useless flag. -Matt Matthew Dillon To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message