[gambit-list] Problem in thread-sleep! may be a poor implementation of the select system call

David St-Hilaire sthilaid at iro.umontreal.ca
Thu Jan 29 11:16:33 EST 2009

Hey all!

I found out why, even after 'make update', I still didn't get the right
values... After some investigation of my system configuration with Marc, it
seems that my kernel configuration had the


option was disbled. After recompiling my kernel with it, Marc's patch using the
nanosleep calls now works fine on my box. I just hope that this flag is set by
default on the regular linux distros hehe!

Thanks to all for the help!


David St-Hilaire wrote:
> vasil wrote:
>> Interpreted code shows average n about 9064 (peak value was 9193),
>> compiled code - 9210 (peak value was 9226).
> Hi all!
> Sorry for the late response...
> So, even after upgrading to the latest gambit-c version:
> dave at david-laptop ~/sources/gambit-sources $ git log | head -n 3
> commit fd8910a5c8649c037be72ec3349ffe535f0a7cd1
> Author: Marc Feeley <feeley at iro.umontreal.ca>
> Date:   Wed Jan 28 11:33:16 2009 -0500
> I still get the bad performances...
> dave at david-laptop ~/sources/gambit-sources $ gsi/gsi ~/toto.scm
> 102
> dave at david-laptop ~/sources/gambit-sources $ gsc/gsc ~/toto.scm
> dave at david-laptop ~/sources/gambit-sources $ gsi/gsi ~/toto.o1
> 102
> The toto.scm file is the example provided by Marc, with a (declare (not safe))
> declartion added.
> I'm using the gentoo kernel 2.6.28-gentoo-r1. Vasil, what kernel did you used?
> Thank you for the help!
> David

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