[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-10-28 Thread foxy123
Got the same on Gutsy with Nvidia Geforce 7600 GT (driver version 100.14.19). If I run any OpenGL app, it switches off the computer in few minutes because of high CPU load: 100-115%. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notifi

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-09-12 Thread Nick B.
I can confirm this. Enabling SyncToVblank greatly reduces the CPU load, but kills the FPS. The most I can get is about 60 FPS. Also my monitors refresh rate. Also certain things like Compiz don't run as smoothly with SyncToVblank enabled. Tested with Nvidia GeForce 6600 + 9631 driver Nvidia GeFo

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-12-07 Thread foxy123
I can confirm that it is the same in Hardy. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-12-01 Thread foxy123
any progress. The bug is quite annoying. It was ok with Feisty. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubun

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
100% cpu usage is normal. The idea is that iterates the rendering loop as fast possible. The faster gpu can render, the more cpu will be utilized, since cpu waits on gpu to finish rendering each frame. Wait time is not included in cpu utilization, because while it is waiting it will be used f

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread unimatrix
@UK-sHaDoW: Question... Why does this not happen on any other operating system (Win, OSX) then? -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu.

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
It does on my windows xp install, if its a simple opengl app. basically its looping like this while(1) { //Some code } which if you've ever done programming you would know put cpu utilization at 100% and possibly makes the system unresponsive. A quick way to test this is to put "while true; do

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread unimatrix
OK yes I understand the theory. And now that you mention this, I've done some tests. Your theory is correct on dual-core systems. I've tested my laptop with some OpenGL games: Quake 3, Sauerbraten, Frets On Fire, Stepmania, Tux Racer, Armagetron. They performed quite nicely, the CPU load was distr

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
That has nothing to do kernel optimization. The game has to be core aware in the game code to be able to utilize the second core. Otherwise it can only use 1 core instead of the whole 2. 1 is half of 2, so the game will only be able to use 50% throughput. Only really new games are core aware(Mul

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
By the way, just because it using a higher percentage of cpu, its not really bad thing. If the same game running at 50% or 100%, the game with 100% usage would be getting a lot more fps, with the trade off of hogging the cpu off other applications. -- OpenGL uses 100% CPU without Sync To VBlank

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-03-12 Thread unimatrix
@UK-sHaDoW: Then why is the same thing happening in apps like Google Earth? -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing lis

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-08-06 Thread Michael Nagel
i think this is not a bug and this report should be closed. if you tell an application to render as many frames as possible (vsync off) you can expect it to eat all available resources it can get hold of... i am closing this bug, but feel free to reopen it if you can make clear how actual behavior

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-08-06 Thread Michael Nagel
i think this is not a bug and this report should be closed. if you tell an application to render as many frames as possible (vsync off) you can expect it to eat all available resources it can get hold of... i am closing this bug, but feel free to reopen it if you can make clear how actual behavior

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-12-01 Thread foxy123
any progress. The bug is quite annoying. It was ok with Feisty. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubun

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-12-07 Thread foxy123
I can confirm that it is the same in Hardy. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-10-28 Thread foxy123
Got the same on Gutsy with Nvidia Geforce 7600 GT (driver version 100.14.19). If I run any OpenGL app, it switches off the computer in few minutes because of high CPU load: 100-115%. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notifi

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-09-12 Thread Nick B.
I can confirm this. Enabling SyncToVblank greatly reduces the CPU load, but kills the FPS. The most I can get is about 60 FPS. Also my monitors refresh rate. Also certain things like Compiz don't run as smoothly with SyncToVblank enabled. Tested with Nvidia GeForce 6600 + 9631 driver Nvidia GeFo

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-03-12 Thread unimatrix
@UK-sHaDoW: Then why is the same thing happening in apps like Google Earth? -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing lis

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
100% cpu usage is normal. The idea is that iterates the rendering loop as fast possible. The faster gpu can render, the more cpu will be utilized, since cpu waits on gpu to finish rendering each frame. Wait time is not included in cpu utilization, because while it is waiting it will be used f

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread unimatrix
@UK-sHaDoW: Question... Why does this not happen on any other operating system (Win, OSX) then? -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu.

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
It does on my windows xp install, if its a simple opengl app. basically its looping like this while(1) { //Some code } which if you've ever done programming you would know put cpu utilization at 100% and possibly makes the system unresponsive. A quick way to test this is to put "while true; do

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread unimatrix
OK yes I understand the theory. And now that you mention this, I've done some tests. Your theory is correct on dual-core systems. I've tested my laptop with some OpenGL games: Quake 3, Sauerbraten, Frets On Fire, Stepmania, Tux Racer, Armagetron. They performed quite nicely, the CPU load was distr

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
That has nothing to do kernel optimization. The game has to be core aware in the game code to be able to utilize the second core. Otherwise it can only use 1 core instead of the whole 2. 1 is half of 2, so the game will only be able to use 50% throughput. Only really new games are core aware(Mul

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
By the way, just because it using a higher percentage of cpu, its not really bad thing. If the same game running at 50% or 100%, the game with 100% usage would be getting a lot more fps, with the trade off of hogging the cpu off other applications. -- OpenGL uses 100% CPU without Sync To VBlank

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-08-06 Thread Michael Nagel
i think this is not a bug and this report should be closed. if you tell an application to render as many frames as possible (vsync off) you can expect it to eat all available resources it can get hold of... i am closing this bug, but feel free to reopen it if you can make clear how actual behavior

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-12-07 Thread foxy123
I can confirm that it is the same in Hardy. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
100% cpu usage is normal. The idea is that iterates the rendering loop as fast possible. The faster gpu can render, the more cpu will be utilized, since cpu waits on gpu to finish rendering each frame. Wait time is not included in cpu utilization, because while it is waiting it will be used f

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread unimatrix
@UK-sHaDoW: Question... Why does this not happen on any other operating system (Win, OSX) then? -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu.

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
It does on my windows xp install, if its a simple opengl app. basically its looping like this while(1) { //Some code } which if you've ever done programming you would know put cpu utilization at 100% and possibly makes the system unresponsive. A quick way to test this is to put "while true; do

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread unimatrix
OK yes I understand the theory. And now that you mention this, I've done some tests. Your theory is correct on dual-core systems. I've tested my laptop with some OpenGL games: Quake 3, Sauerbraten, Frets On Fire, Stepmania, Tux Racer, Armagetron. They performed quite nicely, the CPU load was distr

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
That has nothing to do kernel optimization. The game has to be core aware in the game code to be able to utilize the second core. Otherwise it can only use 1 core instead of the whole 2. 1 is half of 2, so the game will only be able to use 50% throughput. Only really new games are core aware(Mul

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
By the way, just because it using a higher percentage of cpu, its not really bad thing. If the same game running at 50% or 100%, the game with 100% usage would be getting a lot more fps, with the trade off of hogging the cpu off other applications. -- OpenGL uses 100% CPU without Sync To VBlank

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-09-12 Thread Nick B.
I can confirm this. Enabling SyncToVblank greatly reduces the CPU load, but kills the FPS. The most I can get is about 60 FPS. Also my monitors refresh rate. Also certain things like Compiz don't run as smoothly with SyncToVblank enabled. Tested with Nvidia GeForce 6600 + 9631 driver Nvidia GeFo

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-03-12 Thread unimatrix
@UK-sHaDoW: Then why is the same thing happening in apps like Google Earth? -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing lis

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-12-01 Thread foxy123
any progress. The bug is quite annoying. It was ok with Feisty. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubun

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-10-28 Thread foxy123
Got the same on Gutsy with Nvidia Geforce 7600 GT (driver version 100.14.19). If I run any OpenGL app, it switches off the computer in few minutes because of high CPU load: 100-115%. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notifi

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-03-12 Thread unimatrix
@UK-sHaDoW: Then why is the same thing happening in apps like Google Earth? -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing lis

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-09-12 Thread Nick B.
I can confirm this. Enabling SyncToVblank greatly reduces the CPU load, but kills the FPS. The most I can get is about 60 FPS. Also my monitors refresh rate. Also certain things like Compiz don't run as smoothly with SyncToVblank enabled. Tested with Nvidia GeForce 6600 + 9631 driver Nvidia GeFo

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-12-07 Thread foxy123
I can confirm that it is the same in Hardy. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
100% cpu usage is normal. The idea is that iterates the rendering loop as fast possible. The faster gpu can render, the more cpu will be utilized, since cpu waits on gpu to finish rendering each frame. Wait time is not included in cpu utilization, because while it is waiting it will be used f

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread unimatrix
@UK-sHaDoW: Question... Why does this not happen on any other operating system (Win, OSX) then? -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu.

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
It does on my windows xp install, if its a simple opengl app. basically its looping like this while(1) { //Some code } which if you've ever done programming you would know put cpu utilization at 100% and possibly makes the system unresponsive. A quick way to test this is to put "while true; do

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread unimatrix
OK yes I understand the theory. And now that you mention this, I've done some tests. Your theory is correct on dual-core systems. I've tested my laptop with some OpenGL games: Quake 3, Sauerbraten, Frets On Fire, Stepmania, Tux Racer, Armagetron. They performed quite nicely, the CPU load was distr

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
That has nothing to do kernel optimization. The game has to be core aware in the game code to be able to utilize the second core. Otherwise it can only use 1 core instead of the whole 2. 1 is half of 2, so the game will only be able to use 50% throughput. Only really new games are core aware(Mul

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
By the way, just because it using a higher percentage of cpu, its not really bad thing. If the same game running at 50% or 100%, the game with 100% usage would be getting a lot more fps, with the trade off of hogging the cpu off other applications. -- OpenGL uses 100% CPU without Sync To VBlank

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-08-06 Thread Michael Nagel
i think this is not a bug and this report should be closed. if you tell an application to render as many frames as possible (vsync off) you can expect it to eat all available resources it can get hold of... i am closing this bug, but feel free to reopen it if you can make clear how actual behavior

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-12-01 Thread foxy123
any progress. The bug is quite annoying. It was ok with Feisty. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubun

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-10-28 Thread foxy123
Got the same on Gutsy with Nvidia Geforce 7600 GT (driver version 100.14.19). If I run any OpenGL app, it switches off the computer in few minutes because of high CPU load: 100-115%. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notifi

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-12-07 Thread foxy123
I can confirm that it is the same in Hardy. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-09-12 Thread Nick B.
I can confirm this. Enabling SyncToVblank greatly reduces the CPU load, but kills the FPS. The most I can get is about 60 FPS. Also my monitors refresh rate. Also certain things like Compiz don't run as smoothly with SyncToVblank enabled. Tested with Nvidia GeForce 6600 + 9631 driver Nvidia GeFo

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-12-01 Thread foxy123
any progress. The bug is quite annoying. It was ok with Feisty. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubun

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
100% cpu usage is normal. The idea is that iterates the rendering loop as fast possible. The faster gpu can render, the more cpu will be utilized, since cpu waits on gpu to finish rendering each frame. Wait time is not included in cpu utilization, because while it is waiting it will be used f

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread unimatrix
@UK-sHaDoW: Question... Why does this not happen on any other operating system (Win, OSX) then? -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu.

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
It does on my windows xp install, if its a simple opengl app. basically its looping like this while(1) { //Some code } which if you've ever done programming you would know put cpu utilization at 100% and possibly makes the system unresponsive. A quick way to test this is to put "while true; do

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread unimatrix
OK yes I understand the theory. And now that you mention this, I've done some tests. Your theory is correct on dual-core systems. I've tested my laptop with some OpenGL games: Quake 3, Sauerbraten, Frets On Fire, Stepmania, Tux Racer, Armagetron. They performed quite nicely, the CPU load was distr

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
That has nothing to do kernel optimization. The game has to be core aware in the game code to be able to utilize the second core. Otherwise it can only use 1 core instead of the whole 2. 1 is half of 2, so the game will only be able to use 50% throughput. Only really new games are core aware(Mul

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
By the way, just because it using a higher percentage of cpu, its not really bad thing. If the same game running at 50% or 100%, the game with 100% usage would be getting a lot more fps, with the trade off of hogging the cpu off other applications. -- OpenGL uses 100% CPU without Sync To VBlank

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-08-06 Thread Michael Nagel
i think this is not a bug and this report should be closed. if you tell an application to render as many frames as possible (vsync off) you can expect it to eat all available resources it can get hold of... i am closing this bug, but feel free to reopen it if you can make clear how actual behavior

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-10-28 Thread foxy123
Got the same on Gutsy with Nvidia Geforce 7600 GT (driver version 100.14.19). If I run any OpenGL app, it switches off the computer in few minutes because of high CPU load: 100-115%. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notifi

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-12-07 Thread foxy123
I can confirm that it is the same in Hardy. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
100% cpu usage is normal. The idea is that iterates the rendering loop as fast possible. The faster gpu can render, the more cpu will be utilized, since cpu waits on gpu to finish rendering each frame. Wait time is not included in cpu utilization, because while it is waiting it will be used f

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread unimatrix
@UK-sHaDoW: Question... Why does this not happen on any other operating system (Win, OSX) then? -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu.

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
It does on my windows xp install, if its a simple opengl app. basically its looping like this while(1) { //Some code } which if you've ever done programming you would know put cpu utilization at 100% and possibly makes the system unresponsive. A quick way to test this is to put "while true; do

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread unimatrix
OK yes I understand the theory. And now that you mention this, I've done some tests. Your theory is correct on dual-core systems. I've tested my laptop with some OpenGL games: Quake 3, Sauerbraten, Frets On Fire, Stepmania, Tux Racer, Armagetron. They performed quite nicely, the CPU load was distr

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
That has nothing to do kernel optimization. The game has to be core aware in the game code to be able to utilize the second core. Otherwise it can only use 1 core instead of the whole 2. 1 is half of 2, so the game will only be able to use 50% throughput. Only really new games are core aware(Mul

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-01-19 Thread UK-sHaDoW
By the way, just because it using a higher percentage of cpu, its not really bad thing. If the same game running at 50% or 100%, the game with 100% usage would be getting a lot more fps, with the trade off of hogging the cpu off other applications. -- OpenGL uses 100% CPU without Sync To VBlank

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-09-12 Thread Nick B.
I can confirm this. Enabling SyncToVblank greatly reduces the CPU load, but kills the FPS. The most I can get is about 60 FPS. Also my monitors refresh rate. Also certain things like Compiz don't run as smoothly with SyncToVblank enabled. Tested with Nvidia GeForce 6600 + 9631 driver Nvidia GeFo

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-03-12 Thread unimatrix
@UK-sHaDoW: Then why is the same thing happening in apps like Google Earth? -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing lis

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-08-06 Thread Michael Nagel
i think this is not a bug and this report should be closed. if you tell an application to render as many frames as possible (vsync off) you can expect it to eat all available resources it can get hold of... i am closing this bug, but feel free to reopen it if you can make clear how actual behavior

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-12-01 Thread foxy123
any progress. The bug is quite annoying. It was ok with Feisty. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubun

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2007-10-28 Thread foxy123
Got the same on Gutsy with Nvidia Geforce 7600 GT (driver version 100.14.19). If I run any OpenGL app, it switches off the computer in few minutes because of high CPU load: 100-115%. -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notifi

[Bug 139107] Re: OpenGL uses 100% CPU without Sync To VBlank

2008-03-12 Thread unimatrix
@UK-sHaDoW: Then why is the same thing happening in apps like Google Earth? -- OpenGL uses 100% CPU without Sync To VBlank https://bugs.launchpad.net/bugs/139107 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing lis