This is the story of how years of backend service code ended up shipping inside the game itself.
* @param arr 待排序数组
。关于这个话题，im钱包官方下载提供了深入分析
在这个团圆的日子里，不必过分纠结构图是否完美，也不必在意噪点是否纯净，最好的照片，其实就是多年后再次翻看时，能瞬间把你拉回这个喧嚣、温暖、充满饭菜香气的除夕夜的那一张。
What surprised me was that this entire walk is fully hardware-driven -- no microcode involvement at all. The state machine reads the page directory entry, reads the page table entry, checks permissions, and writes back the Accessed and Dirty bits, all autonomously. Since it's hardware-driven, it runs in parallel with the microcode and needs its own memory bus arbitration -- the paging unit must share the bus with both data accesses from the microcode and prefetch requests from the instruction queue.