Re: [gentoo-user] content of /usr/portage/distfile

[Alex <sohalt@gmail.com>]

Allan Gottlieb wrote:
> At Thu, 25 May 2006 10:40:26 +0000 Alex <sohalt@gmail.com> wrote:
> 
> 
>>Allan Gottlieb wrote:
>>
>>>You have to do experiments.  It depends heavily on your application
>>>mix.
>>
>>Yes, that would be the best, but I'm wondering how, because e.g. "time
>>bzip2 -9 foobar" wouldn't be helpfull. So now I've switched to "-Os"
>>and soon I can test, if it's a real difference.
> 
> 
> Please report back your findings, including the application mix you
> tested.  Although "scientific" timed benchmarks are important, I would
> also be interested in how the system feels.  For the latter ("feels"),
> you should qualitatively describe the use of the system (web server,
> desktop, laptop, etc) and what you commonly run (program devel, games,
> scientific/engineering apps, etc).
> 
> thanks,
> allan

Hi,

I've a desktop system and I commonly use applications like firefox, 
thunderbird and so on, kde, gaim and a terminal is nearly always there. 
Sometimes I'm running vim or kate.

If you're interested in some tests, not relevant for desktop systems, 
there are some I made:

Time wasted to compress a 416 mb tar:
         bzip2           gzip
-O3     2m40.882s       1m20.445s
-Os     2m39.314s       1m21.157s

decompress:
         bzip2           gzip
-O3     0m52.575s       0m4.972s
-Os     0m53.387s       0m4.828s

Convert 203 Mbs MP3s to WAV using LAME:
-O3     14m4.461s
-Os     16m50.599s

from wav to mp3:
-O3     1m1.708s
-Os     1m12.841s

Now I'm emerging -e world with -Os. When it is finished, I'll mail you 
the results.

Alex
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