Date: Wed, 29 Apr 2009 15:59:19 -0500 From: Charles Howse <chowse@charter.net> To: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Running Apache with as few modules as possible Message-ID: <2382B6A6-0ACF-4558-A77A-806E01425A2B@charter.net> In-Reply-To: <C61E2E65.A320%fsb@thefsb.org> References: <C61E2E65.A320%fsb@thefsb.org>
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On Apr 29, 2009, at 3:18 PM, Tom Worster wrote: > On 4/28/09 6:45 PM, "Adam Vandemore" <amvandemore@gmail.com> wrote: > >>> OK, here we go: >>> With Apache running on the development machine, modules commented as >>> in my first post -- >>> CPU: 0.8% user, 0.0% nice, 0.4% system, 0.8% interrupt, 98.1% >>> idle >>> Mem: 27M Active, 139M Inact, 64M Wired, 11M Cache, 34M Buf, 648K >>> Free >>> Swap: 512M Total, 60K Used, 512M Free >>> >>> Apache running on the same machine without any modules commented >>> except mod_ssl -- >>> CPU: 0.8% user, 0.0% nice, 0.8% system, 0.4% interrupt, 98.1% >>> idle >>> Mem: 27M Active, 134M Inact, 64M Wired, 13M Cache, 34M Buf, 3584K >>> Free >>> Swap: 512M Total, 60K Used, 512M Free >>> >>> I just ran 'top' after starting httpd to get these figures, maybe I >>> should have done something different? >>> 'bout the only thing that makes sense to me is I have more Free >>> Memory >>> when commenting all those modules. >>> What is the list's opinion on this? >>> >> You should probably use pmap for a more accurate comparison. you may >> also want to set CFLAGS= -Os for size considerations(CPUTYPE as >> well), >> and remove unnecessary modules from kernel if you haven't done so >> already. > > agreed. top lines of top are too imprecise to really tell. but so > far as > the data goes, this is consistent with my findings, i.e. disabling > mods in > the apache runtime config file doesn't save enough to justify the > effort. I recall Bill Gates saying, "640k is enough for anybody." I agree, it's not much of a savings, and there's always the possibility that the webmaster may add something later that needs a module that's commented, and run around in circles before she/he realizes it.
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