Date: Fri, 4 Apr 1997 11:31:26 -0600 From: Zach Heilig <zach@blizzard.gaffaneys.com> To: "John S. Dyson" <toor@dyson.iquest.net> Cc: questions@freebsd.org Subject: Re: RAM usage Message-ID: <19970404113126.06442@murkwood.gaffaneys.com> In-Reply-To: <199704041434.JAA25607@dyson.iquest.net>; from "John S. Dyson" <toor@dyson.iquest.net> on Fri, Apr 04, 1997 at 09:34:47AM -0500 References: <Pine.OSF.3.96.970404100618.3330A-100000@tom.fe.up.pt> <199704041434.JAA25607@dyson.iquest.net>
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On Fri, Apr 04, 1997 at 09:34:47AM -0500, John S. Dyson wrote: > Yes, note that the "cache" memory is almost the same as "free" memory > in other OSes. FreeBSD aggressively caches file contents (both > executables and data files.) Don't you also have to add in "Inactive" memory as well when figuring free memory? For example, if the line from top(1) looked like this: Mem: 35M Active, 2464K Inact, 13M Wired, 9900K Cache, 7276K Buf, 1024K Free I really would have 2464K+9900K+7276K+1024K == 20664K free, right? But, these numbers don't add up: 20664K+35840K+13312K==69816K when I should really have 65536K total, giving 4280K extra... I think I saw this discussion before (didn't pay close attention though). Perhaps there is overlap between Cache and Buf..?? I tried again and got: Mem: 36M Active, 2636K Inact, 14M Wired, 9628K Cache, 7458K Buf, 556K Free == 71478K... -- Zach Heilig (zach@blizzard.gaffaneys.com) | ALL unsolicited commercial email /var/spool/news is 110% full, | is unwelcome. I avoid dealing please delete all the spam you can. | with companies that email ads.
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