Date: Tue, 28 Feb 2006 15:07:42 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org Cc: Mike Jakubik <mikej@rogers.com>, Poul-Henning Kamp <phk@phk.freebsd.dk>, Peter Fraser <petros.fraser@gmail.com>, Jason Evans <jasone@freebsd.org>, Mark Kirkwood <markir@paradise.net.nz> Subject: Re: Virtual memory consumption (both user and kernel) in modern CURRENT Message-ID: <200602281507.46491.jhb@freebsd.org> In-Reply-To: <45B20008-CAC0-41FC-9F35-CEFE59611265@freebsd.org> References: <1743.1140821039@critter.freebsd.dk> <45B20008-CAC0-41FC-9F35-CEFE59611265@freebsd.org>
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On Friday 24 February 2006 17:55, Jason Evans wrote: > On Feb 24, 2006, at 2:43 PM, Poul-Henning Kamp wrote: > > In message <06424916-2FC9-4A31-A109-654682BFC1C4@freebsd.org>, > > Jason Evans writes: > >> I did some quick experiments last night, where I booted a -current > >> system with phkmalloc, then with jemalloc. The total increase in > >> resident memory was negligible, on the order of kilobytes. > > > > Running which applications ? > > This was immediately after boot. I used ssh to log in, then ran top > to get a snapshot at ~60 seconds after boot. Things like getty, zsh, > sshd, and sendmail were running (total of 23 processes). Admittedly, > this is a rather lame experimental design, but it was simple to > perform, and I wanted to know if there were huge differences in > system memory usage, as a number of people have repeatedly implied. > This experiment convinced me that there are not any consistently > substantial differences in memory usage, though I fully expect there > to be variation, depending on the application(s) being run. People are reporting issues with big hogs like kde though. You might want to duplicate your tests with that instead of the much smaller sshd, sendmail, etc. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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