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.
在这个需求爆发的节骨眼，电商时代的巨轮也转到了老张面前。。同城约会对此有专业解读
，详情可参考heLLoword翻译官方下载
❯ sudo ostree admin config-diff | grep motd，详情可参考im钱包官方下载
localhost/my-silverblue:latest --rootfs xfs