Re: Running Apache with as few modules as possible
On 4/29/09 4:59 PM, "Charles Howse" wrote: > 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. right. one thing to remember about optimizations is to put your effort where you need it most. for example, in my apps that's always been in the database queries. so i have logging techniques that allow me to run pareto analyses on query timing data and use that to direct my efforts. spending a couple of weeks optimizing malloc(), a surprisingly popular activity, is seldom worth it. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: Running Apache with as few modules as possible
On Apr 29, 2009, at 3:18 PM, Tom Worster wrote: On 4/28/09 6:45 PM, "Adam Vandemore" 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. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: Running Apache with as few modules as possible
On 4/28/09 6:45 PM, "Adam Vandemore" 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. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: Running Apache with as few modules as possible
Charles Howse wrote: On Apr 28, 2009, at 2:29 PM, Tom Worster wrote: On 4/28/09 3:14 PM, "Charles Howse" wrote: Can anyone see anything that I've commented that I'll be sorry for? Can anyone suggest any more testing I should do? unfortunately i can't but i'd like to ask you to tell us, once you're done with removing modules, how much memory you saved relative to where you started. i'm curious because i went through a similar exercise not long ago and would be interested to compare notes. 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. -- Adam Vandemore Systems Administrator IMED Mobility (605) 498-1610 ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: Running Apache with as few modules as possible
On Apr 28, 2009, at 2:29 PM, Tom Worster wrote: On 4/28/09 3:14 PM, "Charles Howse" wrote: Can anyone see anything that I've commented that I'll be sorry for? Can anyone suggest any more testing I should do? unfortunately i can't but i'd like to ask you to tell us, once you're done with removing modules, how much memory you saved relative to where you started. i'm curious because i went through a similar exercise not long ago and would be interested to compare notes. 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? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: Running Apache with as few modules as possible
On 4/28/09 3:14 PM, "Charles Howse" wrote: > Can anyone see anything that I've commented that I'll be sorry for? > Can anyone suggest any more testing I should do? unfortunately i can't but i'd like to ask you to tell us, once you're done with removing modules, how much memory you saved relative to where you started. i'm curious because i went through a similar exercise not long ago and would be interested to compare notes. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
