[FFmpeg-cvslog] r22052 - in trunk/libavcodec: h264.c h264.h

[Jai Menon]

On Fri, Feb 26, 2010 at 4:10 AM, Michael Niedermayer <michaelni at gmx.at> wrote:
> On Thu, Feb 25, 2010 at 10:19:20PM +0000, M?ns Rullg?rd wrote:
>> Michael Niedermayer <michaelni at gmx.at> writes:
>>
>> > On Thu, Feb 25, 2010 at 10:49:18PM +0100, Michael Niedermayer wrote:
>> >> ? ? -On Thu, Feb 25, 2010 at 07:55:36PM +0000, M?ns Rullg?rd wrote:
>> >> > Michael Niedermayer <michaelni at gmx.at> writes:
>> >> >
>> >> > > On Thu, Feb 25, 2010 at 07:20:18PM +0000, M?ns Rullg?rd wrote:
>> >> > >> Michael Niedermayer <michaelni at gmx.at> writes:
>> >> > >>
>> >> > >> > sorry again, ill try not to forget svq3 from now on when compiling with
>> >> > >> > disabled dependancies. (enabling deps is no option as its too slow)
>> >> > >>
>> >> > >> Can you please elaborate on that? ?If you disable deps, you _will_
>> >> > >> miss things like this. ?I'm not aware of any case where more than
>> >> > >> necessary gets recompiled.
>> >> > >
>> >> > > add a comment to avcodec.h, bump minor api version, ...
>> >> > > there are many things that cause quite a bit to be recompiled
>> >> >
>> >> > It's hard to track dependencies other than by file, so yes, that would
>> >> > trigger some superfluous rebuilds. ?However, this change was only to
>> >> > h264.h. ?Nothing irrelevant depends on it.
>> >> >
>> >> > > was there some way to quickly enable/disable deps?
>> >> > > currently i have common.mak hacked to achive it, but i faintly remember
>> >> > > some discussions about it ...
>> >> >
>> >> > make DEPS=n
>> >>
>> >> Thanks ill try to build with deps from now on before or immedeatly after
>> >> a commit so such hour long breakage does not reoccur
>> >>
>> >>
>> >> >
>> >> > Before anyone asks, this is a hack that should not be documented. ?I
>> >> > don't want to deal with the trouble reports that would ensue.
>> >> >
>> >> > > also is there some way by which make would display what it would rebuild
>> >> > > without doing a time consuming rebuild? (had i run this with deps i would
>> >> > > have spot svq3)
>> >> >
>> >> > make -n
>> >>
>> >> not readable at all without filtering it though sed or other
>> >> btw here it take 7-11 seconds, which isnt exactly fast.
>> >
>> > and thats without deps
>> > with deps its 21 seconds
>> >
>> > and while my pentium dual does it in 2 secs with deps and 1.3 without i
>> > still think this is ridiculously slow for what it does
>>
>> On my computers it takes but a fraction of a second. ?What filesystem
>> are you using?
>
> ext2/ext3
> suggestions for something faster are welcome

a tmpfs perhaps :)
though i dont know how much ram you have...

-- 
Jai Menon