0号核心cpu的使用率很高 [英] the 0th core cpu usage very high
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问题描述
Cpu0 : 68.9%us, 4.6%sy, 0.0%ni, 20.5%id, 0.0%wa, 1.0%hi, 5.0%si, 0.0%st
Cpu1 : 58.1%us, 4.3%sy, 0.0%ni, 33.6%id, 0.0%wa, 0.0%hi, 4.0%si, 0.0%st
Cpu2 : 56.1%us, 5.0%sy, 0.0%ni, 34.9%id, 0.0%wa, 0.3%hi, 3.7%si, 0.0%st
Cpu3 : 55.8%us, 4.0%sy, 0.0%ni, 36.2%id, 0.0%wa, 0.0%hi, 4.0%si, 0.0%st
Cpu4 : 53.0%us, 5.6%sy, 0.0%ni, 38.4%id, 0.0%wa, 0.0%hi, 3.0%si, 0.0%st
Cpu5 : 53.0%us, 5.6%sy, 0.0%ni, 36.8%id, 0.0%wa, 0.0%hi, 4.6%si, 0.0%st
Cpu6 : 54.0%us, 4.3%sy, 0.0%ni, 38.1%id, 0.0%wa, 0.0%hi, 3.6%si, 0.0%st
Cpu7 : 53.6%us, 4.6%sy, 0.0%ni, 37.4%id, 0.0%wa, 0.3%hi, 4.0%si, 0.0%st
Cpu8 : 49.8%us, 5.6%sy, 0.0%ni, 40.2%id, 0.0%wa, 0.0%hi, 4.3%si, 0.0%st
Cpu9 : 55.4%us, 5.0%sy, 0.0%ni, 36.3%id, 0.0%wa, 1.0%hi, 2.3%si, 0.0%st
Cpu10 : 54.3%us, 6.0%sy, 0.0%ni, 34.8%id, 0.0%wa, 0.0%hi, 5.0%si, 0.0%st
Cpu11 : 53.6%us, 6.3%sy, 0.0%ni, 36.4%id, 0.0%wa, 0.7%hi, 3.0%si, 0.0%st
Cpu12 : 55.0%us, 4.0%sy, 0.0%ni, 37.1%id, 0.0%wa, 0.0%hi, 4.0%si, 0.0%st
Cpu13 : 53.7%us, 4.0%sy, 0.0%ni, 38.7%id, 0.0%wa, 0.3%hi, 3.3%si, 0.0%st
Cpu14 : 52.8%us, 5.0%sy, 0.0%ni, 37.6%id, 0.0%wa, 0.0%hi, 4.6%si, 0.0%st
Cpu15 : 56.8%us, 4.0%sy, 0.0%ni, 34.9%id, 0.0%wa, 1.0%hi, 3.3%si, 0.0%st
服务进程运行在MIPS平台的linux系统上.该进程大约有70个线程，其中16个线程绑定到16个核心，每个核心绑定一个线程.左线程不绑定操作.因此，从结果中我们可以看到，第0核的cpu使用率非常高.我怀疑linux系统是否使左线程在第0个内核上运行.因此，第0核的CPU使用率非常高.我该如何解决这个问题?
The service process running on linux system of MIPS platform. The process had about 70 threads, 16 threads bond to the 16 cores, every core bond a single thread. The left threads do not bond operation. So from the result we can see that the 0th core''s cpu usage very high. I doubt the linux system make the left threads running on the 0th core. So the 0th core''s cpu usage very high. How can I handle this problem? Thanks.
推荐答案
通常，由于管理共享内存和指令管道内衬的复杂性，应用程序中的线程将在单个CPU上执行.
如果执行2个或更多进程，则将在其他CPU上看到更多用法.
Generally the threads within an application will execute on a single CPU because of the complexities of managing shared memory and instruction pipe lining.
If you execute 2 or more processes then you will see more usage on other CPU''s.
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