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Yeah, you can't really say ARMA would be the same as some other FPS. However "it's not like other games" can't be the reason for all the problems. I know it's impossible to create a full scale software/game that wouldn't have any bugs, but if and when the bugs appear, the developers NEED to comment them and tell what they are going to do about it. The FPS issue isn't something you can blame the users for. People are posting that they have 20-30 fps on LOW settings with two dualcore graphic cards, quadcore processor and 8gb of fast ram. All the drivers up-to-date. Only solutions so far have been confusing workarounds, what I want, is a word from BI about what they are going to do about this problem. Even "We can't tell what the problem is, but we are working on it" would do, but they have to admit there's something wrong. Games are different, but other new games work fine on the people who post about the problem. Please don't go for "ARMA is different", but rather tell us what you know about this.

Sorry that I really can't help, but for windowed mode and lower resolution try this launch option: -window Displays ArmA windowed instead of full screen (can be used in conjunction with -x/-y: -window -x=800 -y=600) I have been playing for a while now and I confirm that I have the same, if not better fps with just one core active. Something has really gone wrong here.

Ok, seems it wasn't quite as simple as "add a flag and game will perform faster". Sorry about giving such false idea :P

Ok, sorry if it wasn't actually useful :P But wouldn't it still do as temporary solution? After all it just enables 32 bit applications to use more ram than 2gb.

It's just your graphics card, did you buy a pre-build computer from some market? They usually only hype the multiple cores of processor and gigabytes of ram, but never speak about the graphics card that's currently the most expensive and meaningful piece in games. To be able to run all today's games maxed, you'll probably need to spend around 300-400$ to graphics card, if not more.

Hello, for first I'm not expert in this, so what I'm about to say might not be so simple as I think. However I think there's no harm in pointing this out and I'm seriously not trying to "teach" BI. So, ARMA 2 is only able to use 2047mb of RAM, trying to specify higher in launch options will fall back to 2047mb. Is there a reason for this? I wish you could take a look at this article, even tho you most likely know this: http://msdn.microsoft.com/en-us/library/bb147385(VS.85).aspx#The__LARGEADDRESSAWARE_flag just in case you could have missed that bit. From what I understand, this would allow ARMA to use more RAM, even tho it isn't build for 64-bit systems.

Hi, I already discussed nearly the same thing in my other topic, but since it went so far off the original subject I'm starting a new one. First I couldn't get second core of my hd4870x2 working, however when I got told my launch options weren't right, it started working. I went to editor and spawned myself somewhere, the performance was just horrible. About half of the fps I got before or less. I alt-tabbed to whine on the topic and when I got back, everything started to flicker. I quit the mission and spawned myself again. Now the performance was about the same as before. I also tried the benchmark and it looked just the same as with just one GPU active. I checked rivatuner for what happened and noticed something really weird: As you see, when it first started to work, both GPU's were working 100%, but the performance was bad. After the alt-tab and reload however, both GPU's were working only 50%, but the performance got better. Now this is weird, since both should work 100% all the time and performance should be better. So I'm asking if BI guys know anything about this and also what kind of performance the others are getting with dualcore graphic cards. I currently get ~21 fps with everything else than AA at very high. Both resolutions 1920x1200 and draw distance about 5000m. Same performance with either one or two GPU's. My setup is hd4870x2, phenom 9950 @ 2,6GHz, 4gb of ddr2 @ 1066MHz.

That's true, but I have it correctly. However it isn't really the problem here. What I want to do is to enable to other core of my graphics card in game. Also would like to know if there's any way to make the game use more ram than 2047. Again, I'm no expert in this, but from what I remember WOW has the same thing with memory. It's limited to 2047 and one guy claimed he could fix it with a simple statement to enable large address awareness, but the rules don't allow such modifications. Well, this is something I really know nothing about, but I'm interested if it's actually so easy to let the software use more ram and if it is, why it hasn't been done. EDIT: Oh, that's true and now the options seem to work. Both GPU's work, yey! However just one thing. Performance got much WORSE (about half the fps). Seriously, what's this? -.-" EDIT2: Ok, hasty words. Didn't test for long before yelling. Now this is still extremely weird: First I got it to work, I simply went to editor and spawned myself in middle of nowhere. Had horrible fps, went to menu to check if the video settings were the same and yeah, they were the same. Then I came back to post about it. I alt-tabbed back to the game and everything was flickering. I aborted the mission and spawned myself again. Now the performance was about the same as before, I already went to the benchmark and it seems it's about exactly the same as before. I checked rivatuner for what happened and noticed something weird: First spikes use 100% of the GPU, that's how it's supposed to be! But the performance was terrible. When the performance got back to normal, it used about 50% of both and that's about equal to one core. Now I'd really like some BI person to answer, if they are aware of what could be causing this. Is it just that arma 2 doesn't properly support multiple gpu's? ***NOTE*** Since the main problem got solved and this is going so far off, I started another topic about the new problem: http://forums.bistudio.com/showthread.php?p=1338788

For me it doesn't. I renamed the exe to crysis, target of shortcut is now "C:\Program Files (x86)\Steam\steamapps\common\arma 2 demo\crysis.exe" -winxp, -maxmem=2047,-cpuCount=4,-nosplash However I noticed that at least the nosplash option doesn't work. Could be just that it can't be disabled on demo. But both gpu's should still work in the demo too, right?

Tried with crysis64.exe, since I'm using 64-bit os and read that's what you are supposed to use. However all it does is break steam launch (couldn't find a way to alter the path to exe). It shows up as crysis64.exe in processes if I launch it via shortcut, but it doesn't use the second GPU. From what I understood, that solution only works for nvidia SLI and maby for ati crossfire, but the thing is that the gpu's aren't really connected via crossfire. They are in the same card and are just linked together.

From what I tested I can tell ARMA 2 doesn't use the available resources properly. It only uses one GPU, that means the other one is useless and I think it can't even use the 1gb of memory dedicated to that other GPU. I think that's the main performance issue. Does anyone know any fix for that? Also, as I thought ARMA 2 only uses 2gb of memory. That might have big impact on the performance too. Any way to make use of the other 2gb? One bright side tho, it seems to use all 4 cpu cores. Couldn't actually see how many the process uses, but while playing all the 4 cores seemed to have lots of activity. I have launch option -cpuCount=4 set, but haven't tried if it's able to use all the cores without manually setting the amount. If someone is interested, here's a png of all the monitors open. http://i205.photobucket.com/albums/bb71/Ezmundorf/arma2info.png

Ok, so one for everything else and one for AI, is there any way to make use of the 2 other cores? Couldn't find the patch. I'm not an expert, but this seems like it's limited to 2gb: "-maxmem= Limit memory allocation (in MB). 2047 is hardcoded maximum at the moment (Arma2 1.01 final, anything higher falls back to 2047)." It's from Bohemia Interactive Wiki. Does anyone happen to know any program that allows monitoring of cpu/gpu and ram usage in games?

NOTE: I got both GPU's working, but another problem appeared. Since this topic went a bit far from original subject, I started a new one: http://forums.bistudio.com/showthread.php?p=1338788 This thread can be locked. Hi, I know there's quite a few posts from users who think their system should be able to get better FPS. However only major fix I found was for nvidia cards. It isn't very clear on what ARMA 2 supports and what it doesn't. So here's a few questions: Does it support multiple cores on processors? Some say it only uses one core, some give advice to set cpuCount to 2 even on quad core processors. Does it support dualcore graphic cards, such as hd4870x2? If not, is there any kind of fix for it available? Does it support more than 2047mb of ram? They said 1.01 doesn't, but the game updated from that. Should it support more now, or is there any fan-made fix available? My setup: hd4870x2, phenom 9950 @ 2,6 GHz, 4gb of dd2 @ 1066 GHz.' I currently have 5000m draw, 1920x1200 resolutions and all settings @ very high, exept for the AA (that's completely disabled since it drops my FPS down to something around 10). Benchmark gives me average of 21 fps. Sorry for making another "why my fps is low" thread, but actual answers are so cluttered around the internets and differ from each other. Someone should make a sticky about what kind of hardware ARMA 2 properly supports, what it doesn't and what kind of fixes are available.

Ok, found it. I think what you are looking for is this: ErrorMessage: Corrupted data detected. SmallMemAlloc not free when destructed - SmallMemAlloc::ReleaseAll skipped. Elem. size 24 SmallMemAlloc not free when destructed - SmallMemAlloc::ReleaseAll skipped. Elem. size 28 SmallMemAlloc not free when destructed - SmallMemAlloc::ReleaseAll skipped. Elem. size 36 SmallMemAlloc not free when destructed - SmallMemAlloc::ReleaseAll skipped. Elem. size 160 Same repeats for each start attempt. Seems to be about memory, but I don't know. I think I'm just blind, since I can't find attachment feature. Here's a link: http://rapidshare.com/files/249222662/ArmA2Demo.RPT.html ---------- Post added at 05:36 PM ---------- Previous post was at 04:20 PM ---------- I couldn't find any other cases like this, so it's most likely about my setup? Would appreciate even a bit of information, since I'd just want to know if there's anything I can do or should I just wait for a fix through update or something.

Only problem is that it doesn't mention the file. I thought It's a bit strange to just have error like this: Is there a log somewhere that would be a bit more specific? If it helps, the check at start seems to go right (around 8 checkboxes filling up before the game tries to start).