摘要：
I’ve been getting some emails from young developers wanting to “level up” as programmers. I’m definitely not the first to write about this topic, so I’m not sure how much I have to add. Still, for what it’s worth here are a few points off the top of my head:Work with other developers. We are at a wo 阅读全文
摘要：
我言简意赅的说：1 if the timer expires in the next 0 to 255 jiffies, it is added to one of the 256 lists devoted to short-range timers using the least significant bits of the expires field.2 If it expires farther in the future (but before 16,384 jif-fies), it is added to one of 64 lists based on bits 9–14 o 阅读全文