Date: Thu, 27 May 2010 12:13:51 +0100 From: RW <rwmaillists@googlemail.com> To: freebsd-questions@freebsd.org Subject: Re: top memory usage question Message-ID: <20100527121351.7d5327ac@gumby.homeunix.com> In-Reply-To: <4BFE40CF.8020203@waagmeester.co.za> References: <4BFE40CF.8020203@waagmeester.co.za>
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On Thu, 27 May 2010 11:52:15 +0200 Coert <lgroups@waagmeester.co.za> wrote: > Hello all, > > Just a question, on Linux the output of top's memory usage looks like > this: > > Mem: 2075424k total, 1760848k used, 314576k free, 151872k > buffers Swap: 4192924k total, 0k used, 4192924k free, > 1214052k cached > > > on FreeBSD: > > Mem: 48M Active, 945M Inact, 190M Wired, 112M Buf, 804M Free > Swap: 4063M Total, 4063M Free This is missing Cache > I have looked at the respective man pages, and googled. > Where can I find out what Active, Inactive, and Wired mean? Active, Inact, Cache , and Free are all part of the same VM lifecycle. When the system need to allocate memory it comes from cache or free. Wired memory wont be paged-out.
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