High cpu utilization

[aNNDREH 23]

Hello, I am hosting a Linux Debian 8 root server.

4vCores 2.00 - 2.66GHz
16GB DDR3 ECC memory
60GB SSD

On the server runs 1 Gameserver Arma 3.
Mods:
Exile
CUP CWA
CUP Units
CUP Maps
CUP Core
CUP Vehicles
CUP Weapons
BW Mod
CBA
Enhanced Soundscape
XCam Taunus

Addons:
Igiload
Enigma Revive
Strain gage
Roaming AI
ZCP

I start the Gameserver it shows according to SSH command Top Arma3server with a CPU 113.4 utilization and memory 9.9 utilization.

Currently there are 1 players on the Gameserver and 91 AI according to Infistar.
Is there a way to reduce or optimize the CPU?
Server FPS according to Infistar jump from 6 FPS to 50 FPS.

[aNNDREH 23]

top - 14:45:02 up 9 days, 16:08,  1 user,  load average: 0,20, 0,17, 0,10
Tasks: 100 total,   1 running,  99 sleeping,   0 stopped,   0 zombie
top - 16:48:38 up 9 days, 18:11,  2 users,  load average: 1,34, 1,42, 1,34
Tasks: 104 total,   2 running, 102 sleeping,   0 stopped,   0 zombie
%Cpu(s): 30,2 us,  0,7 sy,  0,0 ni, 69,1 id,  0,0 wa,  0,0 hi,  0,0 si,  0,0 st
KiB Mem:  16471600 total, 16083020 used,   388580 free,   140040 buffers
KiB Swap:  2594812 total,    28192 used,  2566620 free. 13456916 cached Mem

  PID USER      PR  NI    VIRT    RES    SHR S   %CPU %MEM     TIME+ COMMAND
 9767 daytona   20   0 2737296 1,626g  53864 R 124,9 10,3 137:17.94 arma3server

 

[1Man 100]

Are you running occupation addon? If so remove it and restart server you might see a difference.

Edited April 13, 2017 by 1Man

[aNNDREH 23]

Yes its Running. Is there an alternative for roaming? And the performance loss new or?

[tinboye 219]

are you utilizing your affinity in your launch commandline? like -enableHT and -exThreads=7

https://community.bistudio.com/wiki/Arma_3_Startup_Parameters

[aNNDREH 23]

thank you brother i will try it and post the results.

[aNNDREH 23]

So I've tried enableHT that has brought minimal more performance.
Cpucount = 4 and exthreads = 7, power remains the same.
Have the AI roaming removed and the server has 10-20 FPS more. Jumps between 40-55 FPS.

According to SSH command "top" it shows the CPU: 21 us
And arma3server has a CPU utilization of 90%.

This means that the server is set wrong somewhere if it is a total of 21 CPU is loaded and arma3server 90%

[aNNDREH 23]

## Server Start Command | https://github.com/GameServerManagers/LinuxGSM/wiki/Start-Parameters#additional-parameters
fn_parms(){
parms="-netlog -ip=${ip} -port=${port} -cfg=${networkcfgfullpath} -config=${servercfgfullpath} -mod=${mods} -servermod=${servermods} -cpuCount=4 -exThreads=7 -enableHT -bepath=${bepath} -autoinit -loadmissiontomemory"

 

[tinboye 219]

arma will only use up to 7 threads total.

if using -enableHT then do not use -cpuCount=4

 

[kuplion 1785]

1 hour ago, tinboye said:

arma will only use up to 7 threads total.

if using -enableHT then do not use -cpuCount=4

 

It's not 7 threads, it's just the config parameter BI chose.

For a server, you don't need anymore than -exThreads=1.