Hi all, I've been having issues with stutters happening abouy every 60sec's or so for about 5sec's in duration dropping the frame rate from a steady 30FPS to 10FPS and while there are no stutters the sim runs as smooth as silk, I have followed all the guides in setting up fsx, DX10Fixer, tried all combinations of Bufferpool settings fsx settings, Rex settings, cloud resolutions, antivirus settings as well as uninstalling the antivirus program, slider positions and the list goes on to no prevail so I'm here to see if anyone can help me out, I do recall quite a while ago I never had this problem until I installed ASN, but I'm not saying this is the problem it's just not as bad when not running ASN but it still happens. I'm assuming it's some sort of proccess happing that I am just unable to crack. I'm running FSX on an Asus G74X which has always done the job really well. A quick overveiw of fsx addons are, FTXG, REX\OD, PMDG7NGX, T7, RC4, ASN, GSX. I will try to include my FSXCFG file if someone would be so kind to look at to see something that I can't that may help.

 

Thanks Rod.

How do I attach my fsxcfg file?

Do you have FSUIPC? If so, check your autosave settings.

 

- Make a backup of your FSX.CFG and delete the original. Let FSX create a new one and just add HIGHMEMFIX.

- Download Nvidia Inspector

- Enable DX10

- Follow the DX10 Tweak Guide written by Paul J (PM me if you can't find a copy)

 

Additionally, you may want to:

- Defrag your FSX HD

- Disable AV during your FSX session only (turn it back on when you're done)

- Close any other programs that may be using resources during FSX (Steam, Dropbox, etc)

Done all of the above

The affinity mask tweak helped reduce stutters for me. It restricts FSX operations to certain cores, leaving a core free for all other processes. Assuming you have a quad-core, try putting the following in your fsx.cfg...

 

[JOBSCHEDULER]

AffinityMask=14

 

Also you could try running FSX in windowed with the Processes page of Task Manager running on the side, and when you get the stutters, check if a process has jumped up in CPU usage.

Thanks Michael I have the Affinity set at 14 but will try the processes page whilst running and see what I get.

 

Cheers Rod.

ASN had a bug which caused stutters like the one you described. I would start by testing extensively without ASN on. Also make sure if you use it, you have the latest version which has improved the situation for most people.

 

 

 

he affinity mask tweak helped reduce stutters for me. It restricts FSX operations to certain cores, leaving a core free for all other processes. Assuming you have a quad-core, try putting the following in your fsx.cfg...
 
[JOBSCHEDULER]
AffinityMask=14
 
Also you could try running FSX in windowed with the Processes page of Task Manager running on the side, and when you get the stutters, check if a process has jumped up in CPU usage.

 

Some good advice, except you forgot to ask if he has HT on or off. 

 

If you have Hyper Threating enabled in the BIOS, 14 is not the correct setting as you will be running on 1.5 cores instead of 3. 

 

The best is to turn off HT in the BIOS and then set affinity mask 14, but if you insist on using HT on, you need to set affinity mask to 84. These values only apply to 4 core processors and will be completely different for processors with more or less cores than 4.

ASN had a bug which caused stutters like the one you described. I would start by testing extensively without ASN on. Also make sure if you use it, you have the latest version which has improved the situation for most people.

 

 

 

 

Some good advice, except you forgot to ask if he has HT on or off. 

 

If you have Hyper Threating enabled in the BIOS, 14 is not the correct setting as you will be running on 1.5 cores instead of 3. 

 

The best is to turn off HT in the BIOS and then set affinity mask 14, but if you insist on using HT on, you need to set affinity mask to 84. These values only apply to 4 core processors and will be completely different for processors with more or less cores than 4.

 

Yup good point. He says he has his affinity mask set up anyways.

Yup, which is why I wanted to mention it.

 

Most people just copy tweaks off the internet without knowing what they do.

 

In this case, if he has ht on, by implementing this tweak, he actually would have degraded performance instead of making it better.

i7 Sandy @4.4ghz,16gig DDR3 RAM, Win7 64,  GTX580 3gig DDR5 RAM, 30" Monitor @ 2560x1600, FSX Config Tweaks followed from Nick and here too.  Have UTX/GEX, FTX/REX Essentials OD, Ultimate Traffic2, Shockwave Lights, and some Carenado AC installed.   Suffered terribly from "microstutters" until I did this:

 

Set in FSX Settings as FPS Target = 30FPS.   In NI set Vsync to "Use 3D App" and presto no more microstutters.  FSX runs beautifully, smooth as glass at a steady 30 FPS with 8xS AA, 16 Aniso, and 2XSGSS,  Day or Night.   No other "tweak" whatsoever had as much dramatic effect as fixing FPS to 30 in FSX and setting Vsync to "Use 3D App" in NI.   I have tons of GA(45% in UT2) and Commercial traffic(100% in UT2) and have vehicle traffic set to 12.

 

Hope this helps.

 

C.

Thanks for the imput guys and yes HT is enabled so what do you suggest as a AF setting 84, 255? I've been trying for weeks to solve this problem and have just about had enough. New fsx cfg file rebuilt and tried with no other tweeks except for adding the HIGHMEMFIX=1 with no change, I will disable HT and add the correct AF and see if aomething changes.

 

Cheers Rod.

Thanks for the imput guys and yes HT is enabled so what do you suggest as a AF setting 84, 255? I've been trying for weeks to solve this problem and have just about had enough. New fsx cfg file rebuilt and tried with no other tweeks except for adding the HIGHMEMFIX=1 with no change, I will disable HT and add the correct AF and see if aomething changes.

 

Cheers Rod.

 

Firehawk44 should chime in soon, listen to him or not, but what ever you do, pick one source for tweaks and stick with it or you will go nuts.

Thanks for the imput guys and yes HT is enabled so what do you suggest as a AF setting 84, 255? I've been trying for weeks to solve this problem and have just about had enough. New fsx cfg file rebuilt and tried with no other tweeks except for adding the HIGHMEMFIX=1 with no change, I will disable HT and add the correct AF and see if aomething changes.

 

Cheers Rod.

 

If you disable HT, and you have a quad-core, then go with 14

Thanks guys I will try your suggestions, the only tweaks I've ever used is the ones advised as per avsim guide and the DX10 how to doc and nothing else, just to verify the AF setting with H.T enabled?

 

Cheers Rod.

Disable ht in the bios and set af mask to 14.

 

I just realized that you are on a laptop, so perhaps you are simply limited by your mobo in there, which might not have enough bandwidth to get everything through.

 

Also, your graphics card is a limiting factor.

Thanks guys I will try your suggestions, the only tweaks I've ever used is the ones advised as per avsim guide and the DX10 how to doc and nothing else, just to verify the AF setting with H.T enabled?

 

Cheers Rod.

 

Be careful how you take advice, too many cooks spoil the soup. Stick with one and consider eliminating things that could cause the issue. Technically you are suppose to install FSX with no addons and get it running at optimum then start adding things SLOWLY. It seems all the top tweakers out there all work to varying degrees, but when you mix things up, that is when you start chasing your tail.

 

It is not unusual for Hardware to be the issue also. Michael Greenblatt was very good about matching up hardware that complimented each other and not fought each other, he called it "System Unification".