Server Choke Core2Duo

[cs.source]

Hello Guys,

I have one 20slot css server running at 100tickrate and when there is 12/20 players the server choke gets to about 40/60 and goes back down etc. My server details are below.

Mem: 2GIG
Processor:
[root@server ~]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel® Core™2 CPU 6700 @ 2.66GHz
stepping : 6
cpu MHz : 2666.828
cache size : 4096 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips : 5336.18
clflush size : 64

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel® Core™2 CPU 6700 @ 2.66GHz
stepping : 6
cpu MHz : 2666.828
cache size : 4096 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips : 5333.31
clflush size : 64

Distro: Fedora Core 6
[root@server ~]# uname -r
2.6.20-1.2952.fc6
/boot/config-2.6.20-1.2952.fc6:

# CONFIG_SECCOMP is not set
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000

Server Rates:
sv_minrate 0
sv_maxrate 30000
decalfrequency 10
sv_maxupdaterate 100
sv_minupdaterate 10

I presume the kernels timer freq is 1000HZ. This is strange because the box is quite well specced. Any ideas guys?

John

[fqdn]

what's your upload speed and set your sv_minrate to something, 0 has been known to cause issues.

[Bonsaihero]

Also can he run a 100tick 20 slots?

[cs.source]

Hi Guys,

Thanks for your replies. The upload speed is 100Mbit full duplex.

John

[Uri Dead]

cs.source Wrote:Hi Guys,

Thanks for your replies. The upload speed is 100Mbit full duplex.

John

Upload (upstream) Internet speed......

[cs.source]

Hello,

Its 100Mbit and not capped so 12mbps on a perfect network each way.

[cs.source]

Hi,

I have tried this on a normal map with 14/20 players and it seems fine perhaps its the surf maps that cause the choke.

[cs.source]

Hi,

The kernel is not compiled at 1000HZ. I tried running the server at 66tick and no choke. So I'm now going to do a custom kernel compile.

John

[Bonsaihero]

Try putting it on 66tick, i bet it will work.

[Muppet]

cs.source Wrote:Hi,

I have tried this on a normal map with 14/20 players and it seems fine perhaps its the surf maps that cause the choke.

Get the server under load again and when the choke starts again, go do 'top' in the console to see CPU usage and mem usage.

Choke can be a number of things - the server cant sustain the required FPS to match tickrate, the client has incorrect rates set or the server doesn't have enough bandwidth for min rates (which i doubt will be your problem).

If nothing seems badly wrong in top, you could try settings the affinity to one core.

[davgkill]

cs.source Wrote:Its 100Mbit and not capped so 12mbps on a perfect network each way.

Man where do i get a connection like that!?

[Drocona]

any big city can supply a 20-100mbit fiber, or a datacentre mostly have OC-48 or higher connections (some total of 600gb/s