除其他条件外：HZ较小，工艺进度不准确？

Question

除了其他条件：HZ较小，工艺进度不准确？ HZ定义在＆＃34; arch / arm / include / asm / param.h＆＃34;：

#ifdef __KERNEL__
# define HZ     CONFIG_HZ   /* Internal kernel timer frequency */
# define USER_HZ    100     /* User interfaces are in "ticks" */
# define CLOCKS_PER_SEC (USER_HZ)   /* like times() */
#else
# define HZ     100
#endif