2006-08-07, 08:15 PM
OK, Well znx needs to be thanked once again for this.
Where this can be used for example:
If you are running 4 gaming servers assuming you are using Dual Xeon processors with HT ( classed as 4 cpu's in linux)
Server 1 uses 60% CPU Usage
Server 2 Uses 60% CPU Usage
Server 3 Uses 20% CPU Usage
Server 4 Uses 20% CPU Usage
Rather than letting the distro automtically assign CPU's it is sometimes better for you to do it manually. In this instance it would make server to have
Server 1 using CPU0
Server 2 using CPU1
Server 3 + 4 using CPU2
Leaving you with a spare CPU.
Example of how to install this in Debian / Redhat / Other:
Code:
# apt-get install schedutilsRedhat
Code:
# up2date schedutilsOther
Code:
# rpm -ivh schedutils*If you have a particular process running and it will retain the same PID throughout then you can do the following command:
Code:
# taskset -c 1 -p 13545'-c 1- = Which cpu you wish the process to run on. In my example this can be set to Either ( CPU0, CPU1, CPU 2, CPU3 )
'-p 12345- Is the process, if the process does not retain the same PID then you need to do the following:
Code:
# taskset -c 3 ./server1.shIf the 'respawning' script needs to be run in screen, you would do:
Code:
screen -m -d -s -- taskset -c 3 ./server1.shThe parent and child, no matter how many times new children (therefore new PIDs) it will still run on CPU3 ( -c3 )
More information on this can be found @ [/url]http://www.cyberciti.biz/tips/setting-proc...or-process.html
And more information about re-spawning scripts can be found @ [url=<___base_url___>/index.php?showtopic=1746][/url][url=<___base_url___>/index.php?showtopic=1746]https://www.linux-noob.com/forums/index.php?showtopic=1746
I hope this helps.
Sorry if some of the lingo is incorrect. I tried my best, im a linux noob :)
Thanks to znx again.