Messages in this thread | | | Subject | Re: -Os versus -O2 | From | Arjan van de Ven <> | Date | Sun, 24 Jun 2007 18:17:20 -0700 |
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On Sun, 2007-06-24 at 18:08 -0700, david@lang.hm wrote: > > > > on a system level, size can help performance because you have more > > memory available for other things. It also reduces download size and > > gives you more space on the live CD.... > > > > if you want to make things bigger again, please do this OUTSIDE the > > "optimize for size" option. Because that TELLS you to go for size. > > then do we need a new option 'optimize for best overall performance' that > goes for size (and the corresponding wins there) most of the time, but is > ignored where it makes a huge difference?
that isn't so easy. Anything which doesn't have a performance tradeoff is in -O2 already. So every single thing in -Os costs you performance on a micro level.
The translation to macro level depends greatly on how things are used (you even have to factor in download times etc)... so that is a fair question to leave up to the user... which is what there is today.
-- if you want to mail me at work (you don't), use arjan (at) linux.intel.com Test the interaction between Linux and your BIOS via http://www.linuxfirmwarekit.org
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