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JastaV
03-05-2006, 06:44 AM
quote:
-----------------------
hamselv2

Posted Sat January 14 2006 09:57


Some PC's with a dualcore (e.g. AMD X2) processor may experience stutter and bad performance some time after the PC is started.
According to Microsoft a hotfix is supposed to be in the next WindowsXP servicepack. The problem can be solved now though.

From Microsoft's article ID 896256, last review December 20, 2005 (http://support.microsoft.com/?id=896256):
'A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article.
Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing.
Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP service pack that contains this hotfix.'.

There are a couple of solutions available:

http://www.xtremesystems.org/forums/showthread.php?s=81...26dad1281c2b&t=81429

http://forums.ubi.com/eve/forums/a/tpc/f/49310655/m/4021097973

You can get a driver for the AMD X2 CPU here:
http://www.amd.com/us-en/Processors/TechnicalResources/...82_871_13118,00.html
Present driver version (January 2006) for WindowsXP is named:
AMD Athlonâ"ž˘ 64 X2 Dual Core Processor Driver for Windows XP and Windows Server 2003 Version (exe) 1.2.2.2

At least one user of Pacfic Fighters solved the stutter problems by doing what's described above:
http://forums.ubi.com/eve/forums?a=tpc&s=400102&f=4...631063893#3631063893
Posts: 215 | Registered: Wed April 14 2004

-------------------------------

Hi everybody,

indeed I verifed that following indications at the link:

http://forums.ubi.com/eve/forums?a=tpc&s=400102&f=4...631063893#3631063893

....""When the game starts bring up your windows task manager (ctrl+alt+del) right click on "il2fb.exe" then hit "set affinity" now just untick one of the cores then close the task manager and alt+tab back into the game and your done. However with this method you will have to do this every time you start the game.""

....Il2PF performance is improved http://forums.ubi.com/images/smilies/clap.gif......

Anybody know if a new WinXP-update-Pack did definetely fixeded the issue ????

JastaV

JastaV
03-05-2006, 06:44 AM
quote:
-----------------------
hamselv2

Posted Sat January 14 2006 09:57


Some PC's with a dualcore (e.g. AMD X2) processor may experience stutter and bad performance some time after the PC is started.
According to Microsoft a hotfix is supposed to be in the next WindowsXP servicepack. The problem can be solved now though.

From Microsoft's article ID 896256, last review December 20, 2005 (http://support.microsoft.com/?id=896256):
'A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article.
Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing.
Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP service pack that contains this hotfix.'.

There are a couple of solutions available:

http://www.xtremesystems.org/forums/showthread.php?s=81...26dad1281c2b&t=81429

http://forums.ubi.com/eve/forums/a/tpc/f/49310655/m/4021097973

You can get a driver for the AMD X2 CPU here:
http://www.amd.com/us-en/Processors/TechnicalResources/...82_871_13118,00.html
Present driver version (January 2006) for WindowsXP is named:
AMD Athlonâ"ž˘ 64 X2 Dual Core Processor Driver for Windows XP and Windows Server 2003 Version (exe) 1.2.2.2

At least one user of Pacfic Fighters solved the stutter problems by doing what's described above:
http://forums.ubi.com/eve/forums?a=tpc&s=400102&f=4...631063893#3631063893
Posts: 215 | Registered: Wed April 14 2004

-------------------------------

Hi everybody,

indeed I verifed that following indications at the link:

http://forums.ubi.com/eve/forums?a=tpc&s=400102&f=4...631063893#3631063893

....""When the game starts bring up your windows task manager (ctrl+alt+del) right click on "il2fb.exe" then hit "set affinity" now just untick one of the cores then close the task manager and alt+tab back into the game and your done. However with this method you will have to do this every time you start the game.""

....Il2PF performance is improved http://forums.ubi.com/images/smilies/clap.gif......

Anybody know if a new WinXP-update-Pack did definetely fixeded the issue ????

JastaV

hamselv2
03-05-2006, 01:35 PM
I don't think so. Why ?
Notice that the Microsoft website mentions the 'next WindowsXP SERVICE PACK', not an update. We haven't had a new WindowsXP Service Pack (= SP3) since I quoted the Microsoft website.

JastaV
03-07-2006, 11:36 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by hamselv2:
I don't think so. Why ?
Notice that the Microsoft website mentions the 'next WindowsXP SERVICE PACK', not an update. We haven't had a new WindowsXP Service Pack (= SP3) since I quoted the Microsoft website. </div></BLOCKQUOTE>

By the way did you tried to disable CPU Core "Cool & Quiet" option in the BIOS as a measure to avoid CPU performance drop with Athlon dual core processors ??????

That's last suggestion from my PC Store technicians.....

JastaV

La7_Baalberith
03-07-2006, 12:09 PM
Hi,

I dont think patches will fix the microstutter problem on dual-core machines. PF isnt configured to run on a dual core, hence only 1 core will handle the game, the other core is basicly doing nothing. some slight backgroundtasking maybe, but nothing that will improve gamespeed, fps ect.

|CoB|_Spectre
03-07-2006, 04:52 PM
I think someone posted over in ORR that there's ample evidence to suggest 4.04 has a memory leak. Seems it does not properly clear memory after a mission has ended, which leads to deteriorating performance as flights continue unless a reboot or other memory clearing steps are taken. It wouldn't be the first time a patch has introduced memory leak issues, but it's hoped Oleg can track it down and fix it.

tanimbar
03-08-2006, 03:06 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by La7_Baalberith:
Hi,

I dont think patches will fix the microstutter problem on dual-core machines. PF isnt configured to run on a dual core, hence only 1 core will handle the game, the other core is basicly doing nothing. some slight backgroundtasking maybe, but nothing that will improve gamespeed, fps ect. </div></BLOCKQUOTE>

Actually PF runs on both cores in default mode but the total processing capacity is limited to 50%. Occasionally background processes other than PF will push the cores beyond 50%.

I've tested dual core and affinity settings quite a lot recently. Using dual core the fames per second (FPS) vary considerably and rapidly as the dual cores contend with each other - FPS will rise and fall 10,20, even 30 FPS rapidly and constantly. This results in a considerable lack of smoothness in game play.

Setting affinity to one core removes the contention and results in stable, i.e. slowly varying FPS, and smooth game play. Oddly, there is hardly any benefit in the speed of the game, e.g. Blackdeath track does not alter significantly between dual core and affinity settings. But the gain in smoothness in affinity mode is substantial.

Turning off CoolandQuiet on my system has no benefit, or is extremely marginal (1-2 FPS, i.e. not measurably significant), and I would not expect any other system to be different.

So use affinity on dual-core systems.

JastaV
03-08-2006, 11:30 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by tanimbar:

I've tested dual core and affinity settings quite a lot recently. Using dual core the fames per second (FPS) vary considerably and rapidly as the dual cores contend with each other - FPS will rise and fall 10,20, even 30 FPS rapidly and constantly. This results in a considerable lack of smoothness in game play......

Turning off CoolandQuiet on my system has no benefit, or is extremely marginal (1-2 FPS, i.e. not measurably significant), and I would not expect any other system to be different.

So use affinity on dual-core systems. </div></BLOCKQUOTE>


Same findings on my PC:

MB ASUS A8NSLI DL 4DDR400-2CH 2PCI-E16X La
AMD Athlon64 X2 4400 GHz
Corsair Value Twinx 2GB (1GbX2 MB) DDR PC3200 RAM
2 HD SATA 74GB 10.000RPM 8MB cache
GIBABYTE Nvidia G70 GeForce 7800 GTX 256MB VIVO HDTV PCI-E

....After last patch4.04 it seems like performance over time is more stable and omogeneous when disabling one of two CPU Cores.....

JastaV