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Processor affinity is a modification of the native central queue scheduling algorithm in a symmetric multiprocessing operating system. Each task (be it process or thread) in the queue has a tag inDicaTing its preferred / kin processor. At alLOCATIOn time,each task is allocated to its kin processor in preference to others.
查看this thread,其中讨论了为特定线程设置亲和性的用法.
摘自此主题：
int sched_setaffinity(pid_t pid,size_t cpusetsize,cpu_set_t *mask); Passing 0 as the pid,and it'll apply to the current thread only,or have other thread report their kernel pid with the linux specific call pid_t gettid(void); and pass that in as the pid.
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