Dedicated issues (Only activating 1 cpu)

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Alright today 4 am I receive a call from clan members that the server is lagging so I take a peak and notice the ArmA Server is running on 1 CPU only.. The server itself have 8 cores and I recently updated it to Beta too as adding cpucount due I discovered this bug too before.. Its really pissing me off that it does this.

Server Specs -
Type AMD Opteron™ 3280 8 cores @ 2.4Ghz each
16 GB Ram

Performance during 1 CPU usage 6 fps..

Anychance its a arma bug? Or Box bugged.

[.kju [PvPscene]]

Try: -cpuCount=2 -exThreads=1

What mission? One with much AI, right?

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Insurgency with 20 Playera online, isn't it possible running 8 cores or atleast 4?

[.kju [PvPscene]]

For what purpose?

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Cause 1 core is weak as its 2.4GHZ Each Core, if I run at least 4 core I can offer a smooth playing with at least a server fps rate of ~30-40fps ..

[VisceralSyn]

Since the server has been coded multi-threaded, the server really has only used 2 core's. 1 for AI and the other for everything else. Without having made a good choice of server-cpu architecture, the ai-thread will strangle 1 core. I have a 3Ghz Wolfdale Xeon, when I attempt to run Benny's with all the ai, 1 core is pegged at 100% and server-framerates go single digits.

There isn't a whole lot that can be done, the server wants more speed provided by efficient architecture, not cores.

...Syn...

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So to be exact, The Octo Core with 2.4GHZ is kinda weak cause what I get is that 1 Core is for AI and another one is for the rest ..

Shouldn't this be fixed? Cause more cores usage is easier to maintain the "Smoothness", as your members were having a smoothness when Server FPS were at 10.

[_MaSSive]

Server should detect cores automatically and spread usage among them. Not equally but at least its better then using just one. To be clear, I agree with above that one core will have 100% CPU usage with a lot of AI and there is nothing to do about it.

I assume you got some kind of affinity setup if its using only one core, but it may also be that you activated all of the AI available or have incorrect networking setup in cfg for larger amounts of players, which might lead to high CPU usage.

If after launching you server with parameter -cpuCount=4 -exThreads=7 CPU usage is still too high for one core, while others are idle, and you get low server performance, then try setting your mission parameters to omit some of the AI ( eg. turn of civilians, and reduce bots to 50% and amount of their vehicles ).
If after said above nothing helps, then try tweaking your servers arma2oa.cfg

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Before I set cpuCount to 4 - It does not recognize 8 cores right? Only four cores correct?

[_MaSSive]

Before I set cpuCount to 4 - It does not recognize 8 cores right? Only four cores correct?

If you set it to 4 then thats what is will use. But there is no reason to set it to 8 cores if only one is actually with high usage. 4 is more than enough.

If you want you can try it with 8 instead of 4.

-cpuCount=8 -exThreads=7