Re: [Flightgear-devel] Multi core discussion

2010-07-07 Thread Mike
Aloha List, as owner of an Intel Q6600 I followed this discussion with much interest and checked thhe below mentioned option right away on Vista x64 with GIT binaries and data of June, 26. No matter which option I use or how I modify the start settings, FG crashes back to desktop right after

Re: [Flightgear-devel] Multi core discussion

2010-07-07 Thread fierst42
For me it worked, but I am on Ubuntu 10.04 64bit. Perhaps this has only been tested on Linux systems before...? m Op 06-07-10 23:49, Mike schreef: as owner of an Intel Q6600 I followed this discussion with much interest and checked thhe below mentioned option right away on Vista x64 with

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread Heiko Schulz
Hi I do not know if this has been discussed in this group before... (I am guessing it is...) Many modern computers are running multicore CPU's. I have noticed that FGFS only uses one thread in one core. And FGFS appears to be processor bound on my Core-I7, because the one core

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread James Turner
On 6 Jul 2010, at 12:45, fiers...@zonnet.nl wrote: It would be neat if more of the computing power that is available could be used. Yes, it would :) I do understand that in the main loop of FGFS many subsystems are related. But would it be possible to identify subsystems that can be

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread Csaba Halász
On Tue, Jul 6, 2010 at 1:45 PM, fiers...@zonnet.nl wrote: Hi Many modern computers are running multicore CPU's. I have noticed that FGFS only uses one thread in one core. And FGFS appears to be processor bound on my Core-I7, because the one core thread is 100% busy while my FPS are dropping

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread fierst42
Op 06-07-10 14:01, James Turner schreef: Summary - yes, it should be possible, yes it has been discussed, the issue is about finding the time to try it, and see what breaks, and what the potential gains are. Great! I will not bother you ;-) m

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread fierst42
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

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread Anders Gidenstam
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

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread Csaba Halász
On Tue, Jul 6, 2010 at 2:58 PM, fiers...@zonnet.nl wrote: I have searched the wiki, but cannot find an option for on-screen OSG stats. Which on screen OSG stats option do you mean? debug - cycle on screen stats or somesuch, can't say right now. Looks like this:

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread fierst42
Hi Anders, Thanks. Very interesting. I added multithreading-modeAutomaticSelection/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

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread fierst42
Op 06-07-10 15:44, Csaba Halász schreef: debug - cycle on screen stats or somesuch, can't say right now. Did that, but it only shows framerate and not the other stuff that is in your picture. I probably need to set an option in preferences or something like that. m

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread Csaba Halász
On Tue, Jul 6, 2010 at 3:58 PM, fiers...@zonnet.nl wrote: Op 06-07-10 15:44, Csaba Halász schreef: debug -  cycle on screen stats  or somesuch, can't say right now. Did that, but it only shows framerate and not the other stuff that is in your picture. I probably need to set an option in

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread Martin Spott
Hi Csaba, Csaba Halász wrote: FG itself isn't CPU limited, we barely use any processing power :) During preparations for some public show last year (maybe LinuxTag) I replaced the two Opteron 2 GHz CPU's by their respective 2.8 GHz counterparts and the result was an almost proportional (to the

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread Stefan Seifert
On Tuesday 06 July 2010 16:15:36 Martin Spott wrote: Even though a 2.8 GHz Socket 940 Opteron is by far not state of the art in these days, I think this scenario is a sufficient proof that the statement FG itself isn't CPU limited doesn't hold. As are the 100%. If the application is bound by

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread fierst42
A right. Hence the Cycle. I feel stupid now :-[ m Op 06-07-10 16:06, Csaba Halász schreef: On Tue, Jul 6, 2010 at 3:58 PM,fiers...@zonnet.nl wrote: Op 06-07-10 15:44, Csaba Halász schreef: debug -cycle on screen stats or somesuch, can't say right now. Did

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread Csaba Halász
On Tue, Jul 6, 2010 at 4:50 PM, Stefan Seifert n...@detonation.org wrote: On Tuesday 06 July 2010 16:15:36 Martin Spott wrote: Even though a 2.8 GHz Socket 940 Opteron is by far not state of the art in these days, I think this scenario is a sufficient proof that the statement FG itself isn't

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread Alex Perry
On Tue, Jul 6, 2010 at 5:12 AM, Csaba Halász csaba.hal...@gmail.com wrote: On Tue, Jul 6, 2010 at 1:45 PM,  fiers...@zonnet.nl wrote: Many modern computers are running multicore CPU's. I have noticed that FGFS only uses one thread in one core. And FGFS appears to be processor bound on my

Re: [Flightgear-devel] Multi core discussion

2010-07-06 Thread Anders Gidenstam
On Tue, 6 Jul 2010, Alex Perry wrote: Most of the _non-minimal rendering options use considerable CPU power on any GPU that is routinely available in a mobile form factor. If we want to be able to support non-desktop users (as well as simplify demonstrations at trade shows), we need to make