摘要：
Dynamic tick/tickless kernel If, however, a CPU leaves the idle state upon an interrupt (the architecture code calls handle_IRQ(), which indirectly ca 阅读全文
摘要：
#include <linux/delay.h> Simple sleeping in the kernel 简单睡眠函数。passive delay ，睡眠时让出CPU资源，非原子操作中用； usleep_range(unsigned long min, unsigned long max) #微 阅读全文