zoukankan      html  css  js  c++  java
  • 线程绑定cpu

    #include <stdio.h>
    #include <pthread.h>
    #include <sys/sysinfo.h>
    #include <unistd.h>
    #include <sched.h>
    
    void SetCpuWhich() {
        int cpu_num=sysconf(_SC_NPROCESSORS_CONF);
        printf("[%s]cpu_num:%d
    ",__FUNCTION__,cpu_num);
    
        int cpu_which=1;
        cpu_set_t mask;
        CPU_ZERO(&mask);
        CPU_SET(cpu_which,&mask);
        if(sched_setaffinity(0,sizeof(mask),&mask)==-1) {
            printf("[%s]sched_setaffinity false:cpu_which%d
    ",__FUNCTION__,cpu_which);
            return;
        }
        else {
            printf("[%s]sched_setaffinity true:cpu_which%d
    ",__FUNCTION__,cpu_which);
        }
     }
    
     void GetCpuWhich() {
        int cpu_num=sysconf(_SC_NPROCESSORS_CONF);
        printf("[%s]cpu_num:%d
    ",__FUNCTION__,cpu_num);
    
        cpu_set_t get;
        CPU_ZERO(&get);
        if(sched_getaffinity(0,sizeof(get),&get)==-1) {
            printf("[%s]sched_getaffinity false
    ",__FUNCTION__);
            return;
        }
    
        for(int i=0;i<cpu_num;i++) {
            if(CPU_ISSET(i,&get)) {
                printf("[%s]sched_getaffinity true:cpu_which:%d
    ",__FUNCTION__,i);
            }
        }
     }
    
  • 相关阅读:
    每日日报46
    每日日报45
    每日日报44
    每日日报43
    每日日报42
    每日日报41
    每日日报40
    每日日报之一周总结
    每日日报
    每日日报
  • 原文地址:https://www.cnblogs.com/smallredness/p/11003407.html
Copyright © 2011-2022 走看看