cpuocup is a simple tool to consume cpu resources. I wrote it just for fun and to experience using Copilot. It is not very useful maybe.
git clone https://github.com/caibingcheng/cpuocup.git
cd cpuocup
g++ main.cpp -o cpuocup -pthread
# cross compile on arm
# aarch64-linux-gnu-g++ main.cpp -o cpuocup -pthreadcpuocup 0.5
#set thread 0 to 50% usage
cpuocup 1,0.5
#set thread 1 to 50% usage, and bind to cpu 1The help message is almostly wrote by Copilot. I just modify some words and add some comments for it.
$ cpuocup --help
NAME
cpuocup - set cpu userspace usage rate
VERSION
v0.1.0
USAGE
cpuocup [rate] [cpu_id,rate] [cpu_id,priority,rate] [cmd,rate] [cmd,priority,rate] ...
DESCRIPTION
This program is used to set cpu rate. Max 16 threads are supported at the device.
rate: thread rate, 0.0 <= rate <= 1.0
cpu_id: cpu id, -1 means thread not bind any cpu, range: [-1, 15]
priority: thread priority, range: [0, 99]
cmd: f, r, F, R
f: set to all threads
r: set to all threads which is not specific
F: set to all threads, and bind to corresponding cpu
R: set to all threads which is not specific, and bind to corresponding cpu
EXAMPLE
cpuocup 0.5 0.9
set thread 0 to 50% usage, and thread 1 to 90% usage
cpuocup 1,0.5
set thread 1 to 50% usage, and bind to cpu 1
cpuocup 1,20,0.5
set thread 1 to 50% usage, and bind to cpu 1, and set thread priority to 20
cpuocup f,0.5
set all threads to 50% usage
cpuocup 1,20,0.5, r,40,0.9
set thread 1 to 50% usage, and bind to cpu 1, and set thread priority to 20
set all threads which is not specific to 90% usage, and set thread priority to 40, and bind to corresponding cpus
AUTHOR
Written by caibingcheng.
REPORTING BUGS
Report bugs to [email protected].
COPYRIGHT
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.- bind thread 1 to cpu 1 and set it to 10% usage
- bind thread 2 to cpu 2 and set it to 20% usage
- bind thread 3 to cpu 3 and set it to 30% usage
top -1 -H result.
