Date: Sat, 10 Nov 2012 08:38:37 -0800 From: Alfred Perlstein <bright@mu.org> To: Eitan Adler <eadler@freebsd.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, Alfred Perlstein <alfred@freebsd.org>, src-committers@freebsd.org Subject: Re: svn commit: r242847 - in head/sys: i386/include kern Message-ID: <509E830D.5080006@mu.org> In-Reply-To: <CAF6rxgmV8dx-gsQceQKuMQEsJ%2BGkExcKYxEvQ3kY%2B5_nSjvA3w@mail.gmail.com> References: <201211100208.qAA28e0v004842@svn.freebsd.org> <CAF6rxg=HPmQS1T-LFsZ=DuKEqH30iJFpkz%2BJGhLr4OBL8nohjg@mail.gmail.com> <509DC25E.5030306@mu.org> <509E3162.5020702@FreeBSD.org> <509E7E7C.9000104@mu.org> <CAF6rxgmV8dx-gsQceQKuMQEsJ%2BGkExcKYxEvQ3kY%2B5_nSjvA3w@mail.gmail.com>
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On 11/10/12 8:25 AM, Eitan Adler wrote: > On 10 November 2012 11:19, Alfred Perlstein <bright@mu.org> wrote: >> Please consult the svn log for this file, it's relatively clear just in the >> commit logs/comments. Grep for 384/512 and look around. > Can this reasoning be added as a comment? I did grep for 384 in the log, but > a) I didn't find the answer > b) one shouldn't have to. > > It probably could be added, but then a bunch of other people would complain about the comment being too wordy or "not in English". I will paste the relevant log messages which do explain it. If you would like to add a comment or work on a comment that won't be criticized for being "too wordy" then we can do that together. r89769 | dillon | 2002-01-24 17:54:16 -0800 (Thu, 24 Jan 2002) | 9 lines Make the 'maxusers 0' auto-sizing code slightly more conservative. Change from 1 megabyte of ram per user to 2 megabytes of ram per user, and reduce the cap from 512 to 384. 512 leaves around 240 MB of KVM available while 384 leaves 270 MB of KVM available. Available KVM is important in order to deal with zalloc and kernel malloc area growth. Reviewed by: mckusick MFC: either before 4.5 if re's agree, or after 4.5 r87546 | dillon | 2001-12-08 17:57:09 -0800 (Sat, 08 Dec 2001) | 6 lines Allow maxusers to be specified as 0 in the kernel config, which will cause the system to auto-size to between 32 and 512 depending on the amount of memory. MFC after: 1 week
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