The Linux kernel maintains a global variable called jiffies, which represents the number of timer ticks since the machine started. This variable is initialized to zero and increments each timer interrupt.
The jiffies global and associated functions are provided in ./linux/include/linux/jiffies.h.
asmlinkage long sys_getjiffies( void )
{
return (long)get_jiffies_64();
}
do you know your jiffer ?
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