You're probably feeling the input lag that many others have observed.

Yeah somethink like that.

If the patch does not help with stutters completely check the following:

0. Plan to get rid of your old WinXP and install Win7-64 asap. It has a trial period. Install it as a second OS first to see how much you can benefit.

1. Antivirus.
Exclude both IL-2 folders from antivirus shield/real-time(!) monitoring (both in Steam and Documents folders). Helped me a lot. Test with switched off antivirus program to see if this is the reason. More http://forum.1cpublishing.eu/showpos...5&postcount=33

2. Use a free program like Gamebooster to unload all unnesessary processes before you launch Il-2. Close your web browser!

3. Use a free program like Gamebooster to defragment game files after every patch(!) Use some advanced defragmenting software to put game files on outer tracks of your hard drive which are faster.

4. Try switching off hyper-threading in BIOS.

5. Try CPU-Control program to assign Steam and Launcher to 4 cores and the rest of background programs to cores number 2-3-4. Create profile for this setup. (Yes it helps even in Win7)

6. Defragment your pagefile. Move your page-file to ramdrive, ultra-fast thumbdrive, or just a separate hard drive. If you have 8+ GB RAM try switching off page-file completely (Some say that Windows won't let you do so completely and it is better to leave a small one on a RAMdrive). Put your system, game and pagefile into 3 different physical drives.

7. In video drivers put mip-map levels and texture quality to performance or high performance to save vram (especially 1gb card owners). Switch on filtering optimization and other performance options using programs like ATI Tray tools, nHancer, RivaTuner(or MSI Afterburner now?)

8. Try putting most frequently accessed game files to a RAMdrive http://forum.1cpublishing.eu/showthread.php?t=20228 (not necessary any more).

9. ATI users force max clocks in drivers. (Some cards just do not speed up when you launch this game unfortunately).
Delete UBI logo video file to avoid this issue.

10. Switch on triple buffering option using ATI Tray Tools or D3D Overrider if you use vsynk(!). Discussion here http://forum.1cpublishing.eu/showthr...t=29251&page=6

11. Switch off desktop Wallpaper rotation.

12. Make sure you are running 4-core CPU @3+ GHz. 3.8+ is recommended. Buy a good cooler and overclock. Check VRAM usage statistics on the forums. Buy a video card with enough vram to prevent stutters. (1.5 or 2GB vram now before patching).

upd.
13. Switch landscape shading to medium or low. It helps a lot both with fps and stutters. Switch off clouds completely in difficulty(!) settings. Put buildings to very low.

Reduce texture quality from "original/maximum" to "high or med quality" - important to avoid stutters.

Game settings to reduce/turn off for highest performance gain: resolution, SSAO, vsynk, shadows, landscape shading, texture quality, landscape details.

14. Use the Performance improvement mod(s) (no SSAO, no mipmaps, lower detail textures) (not necessary any more).

15. 16. Make sure your video settings in drivers do not override ingame settings, e.g. vsync, aniso-filtering, AA, etc. E.g. AA must be used in one place only, not in both.

upd. 21.05.11
upd. 22.05.11
You may use whatever program you like to do this but DO STOP all processes and background programs except absolutely essential. Read this: http://forum.1cpublishing.eu/showpos...44&postcount=1

Setup SLI http://forum.1cpublishing.eu/showthread.php?t=23087 and http://forum.1cpublishing.eu/showthread.php?t=23199
update http://forum.1cpublishing.eu/showthread.php?t=26236

Or Crossfire http://forum.1cpublishing.eu/showthread.php?t=23180 if you have them. 100% fps increase with 4 gpu setup reported.

upd. 3.06.11
Check your Power Management settings. Go to Advanced Power management and make sure NO powersaving options are on (e.g. switching off hard drives, usb controllers, downclocking cpu, etc, etc, etc.). Gamebooster applies a Gaming Power Plan that does it automatically if set up correctly.

If you have issues, 1st verify game cache/files integrity in Steam. Reinstall all software from the redist folder within Steam/IL-2 folder. Check appropriate sites for newer versions/updates of these programs.

upd. 21.07.11
"Beating the bugs..." Guide from Das Attorney http://forum.1cpublishing.eu/showthread.php?t=24735

Tips thread http://forum.1cpublishing.eu/showthread.php?t=24624

Another tips thread to check out http://forum.1cpublishing.eu/showthread.php?t=24782

System Trouble Shooting Thread http://forum.1cpublishing.eu/showthread.php?t=31987

Optimization and Performance Thread http://forum.1cpublishing.eu/showthread.php?t=29004

upd. 26.01.12
http://ultimatecomputers.net/forum/v...php?f=7&t=3644

Update Microsoft.NET Framework 4 Client Profile and DX http://forum.1cpublishing.eu/showthread.php?t=33075

... I am sure there are some more things to optimize in our systems.

no antivirus installed on my gamer wins (I have dual boot, one is "gamer", other "worker", no antivirus installed or running on win7 gamer installation)
Have something simmilar...no that it does much to improve performance in the game

I have MyDefrag..Its the best...google why

I already did that

It helps a bit but COD currently have probs with multicore support....

I defragmented pagefile....

Will try that thanks...but really, is our goal to have textures set to performance??

Will try...thanks

already did that....

yep I did...not that its a big resource hog on new systems

My i7920 runs on 3.5 Ghz (default was 2.6) overclocked on default voltage cooled with Scythe Katana

I can compare this to Rise of flight which is very hardware consuming and ROF had probs too (at release) but now devs optimised the sim (still have some issues like graphic glitches (when changing views above frontline) but thats another story)....

why not optimize the game?? there is probably a deeper problem in the code... try to fly your plane over the sea, then crash and look around, look at the sky, the FPS are LOW also without any plane.... so i don't think that with the next patch we will see something better... :(

I'm still running a dual core! :-P

I think the stuttering slowdown during flight, especially over towns, is due to how COD loads and unloads data of the terrain that you are approaching. I find that as I fly, it stutters when view is static or rotating the external view around and when I hit pause it becomes absolutely perfectly smooth. I have most settings on low apart from model detail on high.

In task manager I can see that CPU usage is mostly below 75% on all 4 cores, cpu power doesn't seem to be a bottleneck. Sometimes Launcher.exe (COD executable) is thrashing away loading gigabytes of data even when stationary/paused. Mostly happens over towns.

My PC specs:

Intel Q6600 Core 2 Quad
4Gb 800mhz DDR2
ATI 4830 512mb VRAM

quite amazing how we an think we can fix this. im sorry but only the devs can fix this, no amount of this that and the next should have to be done to make it work as intended.

Patch fixed it for me. Check out my sig. 35+ smooth fps is great especially online.

yeah works good for me too ! \o/ hurrah. (without any tweaks) as is the way it should be.