From owner-freebsd-questions@FreeBSD.ORG Thu Apr 26 08:32:54 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 0E6ED106564A for ; Thu, 26 Apr 2012 08:32:54 +0000 (UTC) (envelope-from freebsd-questions@m.gmane.org) Received: from plane.gmane.org (plane.gmane.org [80.91.229.3]) by mx1.freebsd.org (Postfix) with ESMTP id B8E398FC12 for ; Thu, 26 Apr 2012 08:32:53 +0000 (UTC) Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1SNK8A-0002xH-Jl for freebsd-questions@freebsd.org; Thu, 26 Apr 2012 10:32:50 +0200 Received: from np-19-75.prenet.pl ([np-19-75.prenet.pl]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 26 Apr 2012 10:32:50 +0200 Received: from jb.1234abcd by np-19-75.prenet.pl with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 26 Apr 2012 10:32:50 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-questions@freebsd.org From: jb Date: Thu, 26 Apr 2012 08:32:39 +0000 (UTC) Lines: 27 Message-ID: References: <2FCC4ECF-DAC2-4701-B392-B0415528A4C7@mac.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: sea.gmane.org User-Agent: Loom/3.14 (http://gmane.org/) X-Loom-IP: 79.139.19.75 (Mozilla/5.0 (X11; FreeBSD i386; rv:10.0.2) Gecko/20100101 Firefox/10.0.2) Subject: Re: FreeBSD vice OS X memory management X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Apr 2012 08:32:54 -0000 Adam Vande More 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