Date: Mon, 19 Mar 2001 22:33:03 -0800 From: sean-freebsd-hackers@chittenden.org To: David Scheidt <dscheidt@tumbolia.com> Cc: freebsd-hackers@freebsd.org Subject: Re: Easy way to compute memory stats? (procfs?) Message-ID: <20010319223303.K84536@rand.tgd.net> In-Reply-To: <Pine.BSF.4.21.0103192354310.37794-100000@shell-2.enteract.com>; from "dscheidt@tumbolia.com" on Tue, Mar 20, 2001 at = 12:11:45AM References: <20010319183135.B84536@rand.tgd.net> <Pine.BSF.4.21.0103192354310.37794-100000@shell-2.enteract.com>
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--81JctsDUVPekGcy+ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable > : Is there an easy way (from script ideally) to get the following > :stats: > : > :free physical mem (avail ram) >=20 > This is going to be quite small on any busy machine, or machine that > has a reasonable uptime. The VM system will cache things unless > there's a demand for memory. vm.stats.vm.v_free_count has the value > in it, but quite often will be quite a bit lower than the amount of > memory that would be available if the system were under memory > pressure. If you look at top's output, there is a value labled > cache. The pages in this queue are clean, and can be discarded > without needing to write them to backing store. The number the > system tells you isn't very useful without knowing what the system > is doing. Drat. I was hoping to arrive at a number similar to top's Free column. Right now the vm stat from sysctl is about 25% of what top's reporting (256MB physical). At the same time... the free pages may be a good value for me to toss around given that I'm also including the load and some statistics of the host's past. > :free swap >=20 > pstat(8) will tell you this Duh, thanks. > :total avail mem >=20 > Do you mean physical memory, in which case the value of hw.physmem will > tellyou. =20 Phys mem + swap, which I think I can calc pretty easily now that I have swap. -sc --=20 Sean Chittenden sean@chittenden.org --81JctsDUVPekGcy+ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Comment: For info see http://www.gnupg.org iEYEARECAAYFAjq2+Z8ACgkQn09c7x7d+q0cqgCffzZ2WFOVZvtgG0owL2FZ9ZKS nxIAn2VM+D9RPW6o6h6fnDM8B7WYokLn =u8t3 -----END PGP SIGNATURE----- --81JctsDUVPekGcy+-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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