[Scummvm-devel] About announcing backend changes & build machine

[Kostas Nakos]

Pawe? Ko?odziejski wrote:
>> hmm, i just checked, myself on my home vserver with 1.8ghz amd cpu  
>> with
>> one core and 1gb ram it build arm linux from svn about 6 minutes  
>> with all
>> engines enabled minus scalers. So i wonder why it takes 3.5 min on  
>> four
>> cores. it seems compilation scummvm doesn't scale very vell. i'll  
>> test it
>> also later on diffrent vserver with four cpu cores.
> 
> it takes 1.2 min on 4 cores xeon 1.86ghz cpu with 4gb ram.
> 
> "Quad Intel 3.33 2 GB, 3.5 mins" interesting difference.
> I know that two scalers can slow down compilation, but still...

Slightly off topic but nevertheless: 3min 8sec for full wince release 
with hq scalers, make -j5, on cygwin. I cannot hypothesize about the 
slowdown, other than perhaps that cygwin has a lousy i/o response 
compared to a linux native environment (based on my experience, I would 
say about 20-50% drop in performance due to constant opening/closing of 
files sounds about right). Not tried in linux yet.

K.