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Severe FPS loss during sustained cannon fire
Closed, ResolvedPublic


When firing the cannons of various vehicles, severe FPS loss with audio distortion can be experienced during sustained fire. It happens in particular with the cannons that have a high rate of fire, such as the Cheetah/Tigris AA cannon and the A-164, Buzzard and Neophron. This happens for both the gunner and bystanders. SP and MP. {F23866}


Legacy ID
Steps To Reproduce
  1. Place A-164 Wipeout in the editor towards any building
  2. Fire cannon at wall
  3. Notice the FPS drops to single digits and sound distortion occurs.

Additional Information

AMD Phenom II X4 955BE @ 3.2ghz
AMD HD7850 1gb
12GB 1600 ddr3 ram
Creative Soundblaster X-Fi

Event Timeline

L3TUC3 edited Steps To Reproduce. (Show Details)May 2 2014, 12:11 AM
L3TUC3 edited Additional Information. (Show Details)
L3TUC3 set Category to Performance.
L3TUC3 set Reproducibility to Always.
L3TUC3 set Severity to None.
L3TUC3 set Resolution to Fixed.
L3TUC3 set Legacy ID to 2319300897.May 7 2016, 6:32 PM
L3TUC3 edited a custom field.
Iceman added a subscriber: Iceman.May 7 2016, 6:32 PM
Iceman added a comment.May 2 2014, 2:25 PM


thank you for submitting the ticket. I was unable to reproduce the problem. For me, no FPS drops were present even after long run with Wipeout gatling or Tigris.

Could you please upload your DX-Diag?
You can find how to get your file here:

Thank you.

L3TUC3 added a subscriber: L3TUC3.May 7 2016, 6:32 PM
L3TUC3 added a comment.May 2 2014, 4:51 PM

DxDiag added.

Scruffy added a subscriber: Scruffy.May 7 2016, 6:32 PM

I had the same problem, posted about it here:

Since then I can't reproduce it anymore. I changed back to the old X-Fi Music and updated the Catalyst drivers to the new 14.4 beta, don't think anything else changed except Arma 3 patches of course. No idea what did it.

You'll have to lower the sample number under audio options significantly if you can't get rid of the problem.

L3TUC3 added a comment.May 8 2014, 7:19 PM

I did some more testing. Dropping the sources helped. Dropping the sample rates progressively improves fps.

This confused me as that indicated the sound processing was in fact CPU bound. I did some more research on my particluar card, the Creative Labs X-Fi Xtreme Audio PCI-E and it turns out it can't do any hardware acceleration or very poorly.

I close this issue as it's not in fact an issue with A3. I'll be buying a new sound card.

You will find no card that does support hardware acceleration for Arma 3, Arma 1 was the last game to support this and only old games do with workaround ALchemy on Vista and later OS. There is only software based audio stuff anymore since years, maybe it changes with the new AMD TrueAudio in the future.

Try different drivers or your onboard sound chip, or live with lowered samples. I somehow got rid of it and now can't reproduce anymore on 2 PCs, second one with the Asus card.

R3vo added a subscriber: R3vo.May 7 2016, 6:32 PM
R3vo added a comment.Nov 15 2014, 11:35 PM

Issue is still persistend for many players and it's absolutely a game breaker.

oukej added a comment.Nov 24 2014, 3:48 PM

Should now be fixed on the dev. branch. Thank you for helping us make the game better!

bombe added a subscriber: bombe.May 7 2016, 6:32 PM

I have the same problem. Ifrit grenade launcher and all other vehicles like this make this bug.
I cant play online with this problems... when i lost those fps and sound distorsion. Its for 5~ 15 second

Do you still experience the issue? Do you run Development Branch of the Arma 3?
Could you please send me the revision number of the build? ("LCtrl+/" in the game to copy i to clipboard)

Goomer added a subscriber: Goomer.May 7 2016, 6:32 PM

Does this mean i can finally use 192khz in shared mode? :U
I'm hyped.

R3vo added a comment.Nov 26 2014, 7:51 PM

We'll see, I haven seen anything about it in the dev changelog yet.

bombe added a comment.Nov 26 2014, 8:48 PM

I'm running on 1.34.128075 and i'm not in the dev branch.
Here the DxDiag :

Works for me, in the dev branch, of course my FPS drops but not to 0.

oukej added a comment.Nov 27 2014, 8:44 AM

I haven seen anything about it in the dev changelog yet.

I'm running on 1.34.128075 and i'm not in the dev branch.

The next stable patch that will include this fix should be deployed before Xmas.

Works for me, in the dev branch, of course my FPS drops but not to 0.

Yes, the particles can eat a lot of performance and we're investigating whether we can improve that as well. The stuttering and freezes were sound-related and they should no longer happen.

twisted added a subscriber: twisted.May 7 2016, 6:32 PM

confirmed. massive drop from maybe 30-50fps to 10-15fps and its due to heavy cannon fire.

danczer added a subscriber: danczer.May 7 2016, 6:32 PM

Are you sure that it's not because of your GFX settings? I mean, have you tried with lower settings? Some fps drop has to be happened, because there are things to do during canon firing. Destroying things etc.
Pls give some context, what happened when you lost half of your FPS.

R3vo added a comment.Dec 8 2014, 6:04 PM

Are you sure that this issue is still persistent? Because it's supposed to be fixed with patch 1.36. Unfortunately, I haven't had a chance to verify this myself.

The issue is fixed, in a way. Your still going to get frame drops due to heavy cannon fire, but you frames won't drop to 0.