Date: Thu, 26 Apr 2012 05:04:34 +0000 (UTC) From: jb <jb.1234abcd@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: FreeBSD vice OS X memory management Message-ID: <loom.20120426T065807-118@post.gmane.org> References: <loom.20120425T142751-217@post.gmane.org> <2FCC4ECF-DAC2-4701-B392-B0415528A4C7@mac.com> <loom.20120425T202502-789@post.gmane.org>
next in thread | previous in thread | raw e-mail | index | archive | help
jb <jb.1234abcd <at> gmail.com> writes: > ... > "The related implementation in FreeBSD seems to have a similar problem: > > NetBSD users have also reported that UVM’s im- provements have had a positive > effect on their applica- tions. This is most noticeable when physical memory > becomes scarce and the VM system must page out data to free up memory. > Under BSD VM this type of paging causes the system to become highly > unresponsive, while > under UVM the system slows while paging but does not become unresponsive. > http://static.usenix.org/event/usenix99/full_papers/cranor/cranor.p... > > Should be easy to fix: just start to page out some stuff in time before > there is no memory left." > ... Would this mean that FreeBSD's (and Mach's ?) MM subsys are behind NetBSD's ? If so, should FreeBSD adopt NetBSD's MM subsys, or just improve itself surgically ? jb
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?loom.20120426T065807-118>