Is cpus_limit related with cpu usage?

[jianzzz]

I am confused about cpus_limit.
1、May I ask what is cpus_limit really means?
2、I want to calculate the cpu usage of each container/task, so I use prom statement like:
irate(cpu_user_seconds_total{id=~"$busi.*"}[5m])*100,
but I get some result that is more than 100. That's my number two confusion.
3、Is cpus_limit related with cpu usage?

[liuhui8]

hi~ do you finally to know how to calculate the cpu usage?