Hi Anders,
Thanks. Very interesting. I added
<multithreading-mode>AutomaticSelection</multithreading-mode>
to my preferences.xml file under <rendering>. At LFPO I am getting 50
FPS (25-30 before). There are two core threads each 50-60% busy. The
rest is up to the graphics card probably.
m
Op 06-07-10 15:26, Anders Gidenstam schreef:
On Tue, 6 Jul 2010, fiers...@zonnet.nl wrote:
Op 06-07-10 14:12, Csaba Halász schreef:
I find it hard to believe that you have performance problems with a
core i7, assuming you got a halfway decent graphics card to go with
it.
I am not having performance problems. All is well, but I noticed that
only one core thread is used while my Linux reports 8 available (4 cores
times 2 threads).
Hi,
Have you tried telling OSG to use more threads?
Edit the following in your preferences.xml file:
<rendering>
<!-- Threading modes:
AutomaticSelection
DrawThreadPerContext
CullDrawThreadPerContext
CullThreadPerCameraDrawThreadPerContext
-->
<!-- multithreading-mode>AutomaticSelection</multithreading-mode -->
...
</rendering>
Note that enabling concurrency here currently breaks the built in
screenshot mechanism.
IMHO we need to proceed carefully with parallelization - to my
knowledge there are only a few subsystems that use (or could with in
reason be expected to use) enough CPU time to warrant the effort to
move them into separate threads.
AFAIK the really big CPU time consumer is rendering. Various AI
systems could be as well if they are used for a large number of AI
entities (though computation of AI behaviour is probably still much
cheaper than handling the 3d models for them).
Cheers,
Anders
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