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Re: [glob2-devel] using multy core when compiling
From: |
Stéphane Magnenat |
Subject: |
Re: [glob2-devel] using multy core when compiling |
Date: |
Sat, 26 Jan 2008 10:22:35 +0100 |
User-agent: |
KMail/1.9.6 (enterprise 0.20070907.709405) |
On Saturday 26 January 2008 01:18:25 Leo Wandersleb wrote:
> Hi!
>
> For all those having multy core CPUs and that are not so familiar with
> scons: use the option "-j" to run multiple jobs.
> scons -c && s=$(date +%s) && scons -j 2;e=$(date +%s);echo $(($e-$s))
> ...
> scons -c && s=$(date +%s) && scons -j 7;e=$(date +%s);echo $(($e-$s))
> shows me it takes only 85s
> compared to
> scons -c && s=$(date +%s) && scons;e=$(date +%s);echo $(($e-$s))
> that takes 160s.
>
> Greetings,
>
> Leo Wandersleb
>
> P.S.: That is more than one minute wasted time each time i compiled glob2
> :(((
Is there a way to let scons choose the number of process depending on the
number of core/hardware threads?
Steph
--
http://stephane.magnenat.net