Date: Wed, 06 Aug 2008 20:59:40 +0200 From: Kris Kennaway <kris@FreeBSD.org> To: Lin Jui-Nan Eric <ericlin@tamama.org> Cc: stable@freebsd.org Subject: Re: Max size of one swap slice Message-ID: <4899F49C.1000609@FreeBSD.org> In-Reply-To: <47713ee10808060013h10dd3f57ma5f45e69a322743a@mail.gmail.com> References: <47713ee10808050839k5b258831x66bc52f70b2c355b@mail.gmail.com> <B4738279-01FE-4AE2-9038-2E04A1BC3990@mac.com> <47713ee10808060013h10dd3f57ma5f45e69a322743a@mail.gmail.com>
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Lin Jui-Nan Eric wrote: > On Wed, Aug 6, 2008 at 12:46 AM, Chuck Swiger <cswiger@mac.com> wrote: >> It's hard to conceive of why you'd want to add so much swap space, anyway-- >> if you've got programs which actually need to deal with 10s of gigabytes >> worth of data, then they ought to maintain a smaller/reasonable-sized >> working set in RAM and do disk I/O as needed themselves rather than depend >> upon the VM pager, anyways. > We are running varnish, and found that it is not stable while using mmap mode. > We don't know whether if the problem is in the code of varnish or file > system, but > we found that if we run varnish using malloc mode with big swap, it > became stable. > > Thank you all for the information, I'll try to look into the kernel code. See http://www.freebsd.org/cgi/getmsg.cgi?fetch=540837+0+/usr/local/www/db/text/2008/freebsd-questions/20080706.freebsd-questions Kris
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