Re: [Flightgear-devel] CPU usage issue
Hmm... the puzzling thing is that you don't seem to be getting 100% utilisation when running FG. As Andy R explained, you should expect to see 100% utilisation. If you had been running on a multi-processor/core system then it might have made more snese. LeeE On Monday 31 Oct 2005 15:16, Drew wrote: No, single processor. On 10/29/05, Lee Elliott [EMAIL PROTECTED] wrote: Are you running on a dual processor/core system? LeeE On Friday 28 Oct 2005 01:41, Drew wrote: If you can throttle the frame rate when the window is open, can't it be throttled when it's minimized? When I have the window open, it runs at about 60% utilization, not 100. On 10/27/05, Andy Ross [EMAIL PROTECTED] wrote: Drew wrote: I have a Windows build of FlightGear, and have recently discovered when the FlightGear window is minimized, the CPU usage jumps up to 100%. Does anyone have any idea why this happens? What can be done to fix this? Didn't this subject come up before? Note that CPU usage is at 100% is neither a bug nor a problem by itself. Do you need more CPU for calculating something else? Are your other applications unresponsive? FlightGear, like most games or real-time simulations, has a frame-based main loop. It calculates a frame, renders it, and then immediately goes back to the start of the loop to render the next one. That keeps the frame rate as high as possible given the resources available. There is currently no provision for throttling the frame rate in situations where the window is minimized, although I suppose that could be done. Andy ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-d evel 2f585eeea02e2c79d7b1d8c4963bae2d ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] CPU usage issue
Lee Elliott wrote: Hmm... the puzzling thing is that you don't seem to be getting 100% utilisation when running FG. As Andy R explained, you should expect to see 100% utilisation. If you had been running on a multi-processor/core system then it might have made more snese. If you have vsync enabled or some other throttling mechanism turned on, you may very likely see 100% cpu utilization. Otherwise, the remaining time might be getting assigned to the system depending on out the drivers are laid out. Curt. -- Curtis Olsonhttp://www.flightgear.org/~curt HumanFIRST Program http://www.humanfirst.umn.edu/ FlightGear Project http://www.flightgear.org Unique text:2f585eeea02e2c79d7b1d8c4963bae2d ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] CPU usage issue
No, single processor.On 10/29/05, Lee Elliott [EMAIL PROTECTED] wrote: Are you running on a dual processor/core system?LeeEOn Friday 28 Oct 2005 01:41, Drew wrote: If you can throttle the frame rate when the window is open, can't it be throttled when it's minimized? When I have the window open, it runs at about 60% utilization, not 100. On 10/27/05, Andy Ross [EMAIL PROTECTED] wrote: Drew wrote: I have a Windows build of FlightGear, and have recently discovered when the FlightGear window is minimized, the CPU usage jumps up to 100%. Does anyone have any idea why this happens? What can be done to fix this? Didn't this subject come up before? Note that CPU usage is at 100% is neither a bug nor a problem by itself. Do you need more CPU for calculating something else? Are your other applications unresponsive? FlightGear, like most games or real-time simulations, has a frame-based main loop. It calculates a frame, renders it, and then immediately goes back to the start of the loop to render the next one. That keeps the frame rate as high as possible given the resources available. There is currently no provision for throttling the frame rate in situations where the window is minimized, although I suppose that could be done. Andy ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d___Flightgear-devel mailing listFlightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel2f585eeea02e2c79d7b1d8c4963bae2d ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] CPU usage issue
Are you running on a dual processor/core system? LeeE On Friday 28 Oct 2005 01:41, Drew wrote: If you can throttle the frame rate when the window is open, can't it be throttled when it's minimized? When I have the window open, it runs at about 60% utilization, not 100. On 10/27/05, Andy Ross [EMAIL PROTECTED] wrote: Drew wrote: I have a Windows build of FlightGear, and have recently discovered when the FlightGear window is minimized, the CPU usage jumps up to 100%. Does anyone have any idea why this happens? What can be done to fix this? Didn't this subject come up before? Note that CPU usage is at 100% is neither a bug nor a problem by itself. Do you need more CPU for calculating something else? Are your other applications unresponsive? FlightGear, like most games or real-time simulations, has a frame-based main loop. It calculates a frame, renders it, and then immediately goes back to the start of the loop to render the next one. That keeps the frame rate as high as possible given the resources available. There is currently no provision for throttling the frame rate in situations where the window is minimized, although I suppose that could be done. Andy ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
[Flightgear-devel] CPU usage issue
Hey all, I have a Windows build of FlightGear, and have recently discovered when the FlightGear window is minimized, the CPU usage jumps up to 100%. Does anyone have any idea why this happens? What can be done to fix this? Thanks, Drew ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] CPU usage issue
On Thursday 27 Oct 2005 20:28, Drew wrote: Hey all, I have a Windows build of FlightGear, and have recently discovered when the FlightGear window is minimized, the CPU usage jumps up to 100%. Does anyone have any idea why this happens? What can be done to fix this? Thanks, Drew Hmm.. when running FG my CPU usage is always at 100% although the total usage is split between user and system utilisation, with user taking the vast majority. I've noticed that if I bump up the anti-aliasing settings to high values I see a much higher system utilisation and lower frame rates, so I could imagine that minimising the FG window could do funny things to the frame rate and skew the user/system ratio. LeeE ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] CPU usage issue
Drew wrote: I have a Windows build of FlightGear, and have recently discovered when the FlightGear window is minimized, the CPU usage jumps up to 100%. Does anyone have any idea why this happens? What can be done to fix this? Didn't this subject come up before? Note that CPU usage is at 100% is neither a bug nor a problem by itself. Do you need more CPU for calculating something else? Are your other applications unresponsive? FlightGear, like most games or real-time simulations, has a frame-based main loop. It calculates a frame, renders it, and then immediately goes back to the start of the loop to render the next one. That keeps the frame rate as high as possible given the resources available. There is currently no provision for throttling the frame rate in situations where the window is minimized, although I suppose that could be done. Andy ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
Re: [Flightgear-devel] CPU usage issue
If you can throttle the frame rate when the window is open, can't it be throttled when it's minimized? When I have the window open, it runs at about 60% utilization, not 100.On 10/27/05, Andy Ross [EMAIL PROTECTED] wrote: Drew wrote: I have a Windows build of FlightGear, and have recently discovered when the FlightGear window is minimized, the CPU usage jumps up to 100%.Does anyone have any idea why this happens?What can be done to fix this?Didn't this subject come up before?Note that CPU usage is at 100%is neither a bug nor a problem by itself.Do you need more CPU forcalculating something else?Are your other applications unresponsive? FlightGear, like most games or real-time simulations, has aframe-based main loop.It calculates a frame, renders it, and thenimmediately goes back to the start of the loop to render the next one.That keeps the frame rate as high as possible given the resources available.There is currently no provision for throttling the frame rate insituations where the window is minimized, although I suppose thatcould be done.Andy___ Flightgear-devel mailing listFlightgear-devel@flightgear.orghttp://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d ___ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
