Operation Arrowhead performance optimizations/comparisons

[WillaCHilla]

ARMA 2 defaulted to 16 3D audio samples at once
OA defaults to 32 3D audio samples at once and allows to choose from 16 to 128 in steps of 8
2D samples aren't counted into this counter ...

Do you know if the audio-samples are calculated by the cpu only? -Is there a big performance-hit if you choose values like "128"?

-If this is the case-is an extra soundcard (Xfi e.g.) involved in the calculating of it?

I know-questions over questions, but this is a very interesting new feature in OA and I think I´m not the only one whos very interested in it.

[Varanon]

As I said in the impression / discussion threads for Operation Arrowhead, I'm one of the lucky few to suffer some problems with the game, despite having ArmA II run butter-smooth without any issues.

I've got the same problem, ArmA 2 running great, OA, while only margnially slower than ArmA 2, suffers from sudden drops in framerate resp. momentary freezes for half a second every, say 10 to 20 seconds.

My specs are following;

Windows 7 64Bit
Core i7 940
ATi 4870X2
6GB DDR3

Windows 7 64 bit here, too, AMD Athlon 64 X2 5600+, and ATI 4850 (no sli). Using Catalyst 10.6 (I'll try 10.3 again tonight, although that means I have to do something about that stupid flash player... meh). Also copied the whole ArmA 2 installation to a different disk, no change.

[jpinard]

Do you know if the audio-samples are calculated by the cpu only? -Is there a big performance-hit if you choose values like "128"?

-If this is the case-is an extra soundcard (Xfi e.g.) involved in the calculating of it?

I know-questions over questions, but this is a very interesting new feature in OA and I think I´m not the only one whos very interested in it.

In a short answer - every sound card has a limitation on the # of simultaneous 3d voices (sounds) it can post. The latest X-Fi PCI Express (Titanium Fatality) does its best to compensate Windows 7 users for the loss of control over cpu cycles the card traditional performed under Win XP. 50% of gamers still have motherboards using the crappy old AC'97 built-in mobo sound which I believe only has the ability to do 32 voices... and it may not even be true 3d positional in the sense we're talking here. So your answer is... it all depends on what you have now. I'll do some comparison tests for you later on.

[Bono_LV]

5. Turn VSYNC OFF! <--- this makes at least a 5 fps difference and makes the game much more responsive.

Any ATI user can do this? How? ATI ccc option doesn't work. I tried ATI Tray tools. It's buggy. On any settings change or loading screen v-sync just enables and my fps drops back to 20's.

My system:
Q9550@3.4GHz
4GB ram
HD4870x2 2GB
2x7200rpm HDD Raid-0

[Xirow]

Well,

As I said in the impression / discussion threads for Operation Arrowhead, I'm one of the lucky few to suffer some problems with the game, despite having ArmA II run butter-smooth without any issues.

My settings for the game I've tried to closely match ArmA IIs settings, View distance of about 3000, everything on Very High except for PP, which is on low due to its changes, AA on Disabled and AF on Normal.

Running the benchmark gives me a 35FPS result, which isn't bad but far from acceptable and nothing like the performance in A2.

It isn't just low performance, game seems to suffer from constant micro-stutters that just trickles down and have an adverse effect on everything. In Zargabad it's especially bad, performance is also abysmal - Feels like the computer is struggling bad and sometimes the walk / run animation on the soldier won't even play, he'll just float because the game is too busy trying to render / deal with other issues, it's that bad!

I tried a different driver set ( ATi ) with no effect, I tried defragmenting my drive with 0 effect whatsoever, I tried renaming my .exe to both arma2 and crysis with no effect and now I'm lost for things to try, except waiting for a patch or something.

My specs are following;

Windows 7 64Bit
Core i7 940
ATi 4870X2
6GB DDR3

I solved all my stuttering problems in ArmA II by disabling HT and it's still disabled, with no effect. I'm running the game without extensions, so no -maxmem etc.

Same here except that i get around 50fps but there are micro-stutters all the time too...
My specs are

Windows 7 64Bit
Core i7 920
ATi 5870
6GB DDR3

I disabled V-Sync with ATI Tray Tools but it doesn't make any difference

[rcjsniper]

Same stuttering problems with me also

i7 920 @ 3.8
sli gtx 480's
xfi titanium
win7 x64bit
6g 1600mhz

Bummer to as arma2 with ace 2 is running nice but his game micro and super stutters like a mofo

On internal bench mark in the scenarious i have all very high minus AA and get a score of 53 to 57 fps

[Silentspy]

stuttering here too

i7 930 @ normal clock
ATI 5870 sapphire vapor x
onboard soundcard (realtek 889)
win 7 64bit
6gb 1600mhz ram

arma 2 vanilla with latest patch runs VERY smooth and even with all kinds of mods on, i just dont get why OA stutters so much in comparison

[mrbinkels]

You can change arma2.exe to something else, rename your OA.exe to arma2.exe and it will run crossfire that way. However my results were negligible. No improvement for me with my setup running crossfire.

---------- Post added at 12:19 PM ---------- Previous post was at 12:17 PM ----------

I get stuttering in the benchmarks only, haven't noticed while playing though.

[rcjsniper]

Im thinking maybe our I7's may have something to do with it, or this game isnt patched to what arma2 is at 1.07. ive been doing all the rename exe tricks and -winxp command and other tweaks but no success of getting rid of the stuttering. Hopefully a patch comes soon as ive been waiting for a good war on terror game like this.

[Sgt Gul]

i have an amd x4 processor, do i need to remove cpucount? both from OA and Arma2? Or only OA?