lkml.org 
[lkml]   [2017]   [Dec]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subjectniced tasks on SMT system
Hi!

Ok, so I'm compiling, and I'd like to run a flight simulator.

Flightgear normally does 20fps on my system... kinda low but playable.

I have reniced make -j 5 fo kernel running. Scheduler gives 100% of
one of CPUs to Flightgear (good), but the smt sibling is used by the
compilation, and I'm down to 9 fps. Not good.

Even with single-threaded make, I have 10-13fps.

Is there way to learn which CPUs are SMT siblings?

Is there way to disable SMT during runtime?

Can I do something to improve Flightgear performance and still do
compilation?

Thanks,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2017-12-28 13:10    [W:0.072 / U:0.068 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site