Date: Thu, 26 Apr 2012 08:32:39 +0000 (UTC) From: jb <jb.1234abcd@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: FreeBSD vice OS X memory management Message-ID: <loom.20120426T095813-923@post.gmane.org> References: <loom.20120425T142751-217@post.gmane.org> <2FCC4ECF-DAC2-4701-B392-B0415528A4C7@mac.com> <loom.20120425T202502-789@post.gmane.org> <loom.20120426T065807-118@post.gmane.org> <CA%2BtpaK2JQ3ZkmXZK4v_j4nwssBrz9Hj69kV5=tkmyUxaHGaksg@mail.gmail.com>
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Adam Vande More <amvandemore <at> gmail.com> writes: > ... > http://workstuff.tumblr.com/post/19036310553/two-things-that-really-helped- > speed-up-my-mac-and > http://dywypi.org/2012/02/back-on-linux.html > "2) Inactive memory (which is memory that has been recently used but is no longer) is supposed to be seamlessly reclaimed automatically by the OS when needed for new programs. In practice, I’ve found that this isn’t the case, and my system slows to a crawl and starts paging out to disk when free memory drops to zero, even as half of the available RAM (which is a lot) is marked as inactive. ..." Well, this is not a case of a "BSD is dying" troll (you can safely ignore those). The above and the past FreeBSD thread here, both I referred to, have something in common - the system seems to progressively come under stress due to what one user experienced as "missing memory", and other two users experienced (as shown here above) as inefficient (or lack of) early reclamation of inactive pages. We just want the devs and users make aware of things. jb
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