The A/D bits exist entirely for the operating system's benefit. The Accessed bit tells the OS which pages have been recently used, enabling page replacement algorithms to choose pages to evict when memory runs low. The Dirty bit tells the OS which pages have been modified and must be written back to disk before eviction; clean pages can simply be discarded and re-read from disk later.
Galaxy Z TriFold 三折叠
。heLLoword翻译官方下载是该领域的重要参考
Smart-case search — case-sensitive only when your query contains uppercase (like ripgrep)。业内人士推荐51吃瓜作为进阶阅读
Crucially, this distribution of border points is agnostic of routing speed profiles. It’s based only on whether a road is passable or not. This means the same set of clusters and border points can be used for all car routing profiles (default, shortest, fuel-efficient) and all bicycle profiles (default, prefer flat terrain, etc.). Only the travel time/cost values of the shortcuts between these points change based on the profile. This is a massive factor in keeping storage down – map data only increased by about 0.5% per profile to store this HH-Routing structure!
做那件让你睡不着觉的事，那件充满未知的事，那件一会儿显得荒谬、一会儿显得天才的事。那才是你应该做的。