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Hi Chaps,
A few weeks ago someone suggested compiling a low latency kernel, tickless
for high fps which we have progressed and done.
My box is a dual xeon 2.6ghz, HT is turned off and just the two cpu's are
showing up. Its identical to my windows box in terms of hardware and setup.
On my windows box I have 3 TF2 Servers and 1 TFC server running, when full
task manager reports around 85% cpu usage and no fps related problems (although
similar cpu loads being reported).
Yet on the linux box it drops to 10fps, now with 14 players its fine
21:39:53 CPU In Out Uptime Users
FPS Players
45.00 35178.93 38394.59 210 4 493.83 14
Soon as it hits 18+ it goes off the boat...
21:31:36 CPU In Out Uptime Users FPS Players
83.33 48139.13 79145.84 202 3 11.23 19
21:33:24 CPU In Out Uptime Users FPS Players
83.75 54450.20 113019.84 203 3 13.33 22
If you look at top you see its hammering the server.
top - 21:36:51 up 5:25, 1 user, load average: 1.36, 1.27, 1.22
Tasks: 60 total, 5 running, 55 sleeping, 0 stopped, 0 zombie
Cpu(s): 48.5%us, 4.5%sy, 0.0%ni, 46.2%id, 0.0%wa, 0.2%hi, 0.7%si, 0.0%st
Mem: 3767424k total, 1097880k used, 2669544k free, 44068k buffers
Swap: 1518100k total, 0k used, 1518100k free, 628592k cached
PID PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
12268 25 0 230m 169m 22m R 73 4.6 59:40.89 srcds_i486
12154 15 0 98300 70m 6592 R 19 1.9 33:39.28 hlds_i686
11989 15 0 77908 57m 6248 R 9 1.6 25:21.40 hlds_i686
12323 15 0 207m 144m 22m S 6 3.9 9:17.43 srcds_i486
This server is running 1 x TF2 22 man server 1 x TF2 20 man server 1 x TFC 14
man server and 1 x TFC 20 man server.
My windows box is running 1 x TFC 14 man server, 1 x TF2 20 man server, 1 x
TF2 18 man serverx 1 x TF2 18 man server.
As you can see the CPU load, at the moment the fps dropped to 11fps the box
was hardly busy.
At the same time this was my windows box....
4:27025
21:44:20 CPU In Out Uptime Users FPS Players
53.85 52241.09 128488.64 39 0 441.99 19
.4:27035
21:45:25 CPU In Out Uptime Users FPS Players
48.46 53325.14 63532.80 3228 69 261.63 18
21:45:29 stats
.4:27045
21:46:23 CPU In Out Uptime Users FPS Players
55.86 48499.68 98046.57 4857 111 256.18 18
Short term im going to drop the linux servers down to 18 slots and up the
Windows ones a bit to see what effect taht has but I have another windows
server setup to 24 slots and it has no problems either...
.129:27035
21:47:25 CPU In Out Uptime Users FPS Players
43.42 62050.84 105045.49 34 1 510.61 24
All 3 machines are dual xeon 2.6ghz with HT disabled.
AS these are my public boxes I know nothing else is running on the hardware
at the same time and its not shared the only difference is linux/Windows.
I heard people talking about manually assinging the afinity, does that make
much of a difference? Or has anyone else found any other tricks?
Much appreciated.
John
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