本文共 731 字，大约阅读时间需要 2 分钟。

?????Linux?????????????????????????????????????Linux????????????????????????????

?????????

• CPU???????????????????????
• MMU?????????????RWX?????
• Linux????zone???DMA?Normal?HIGHMEM???
• Buddy?????????
• ????????CMA??????

??????????

• slab?????kmalloc/kfree???
• ??????????????
• mallopt???????
• vmalloc???????
• ???????OOM??????
• Android???????????

?????????

• ???????VMA??????????
• ???????vss?rss?pss?uss?????
• page fault?????major?minor???
• ?????????
• valgrind?addresssanitizer???????

???I/O????

• page cache??????
• free???????
• read?write????????mmap?
• file-backed?????????
• swap?zRAM???????
• LRU??????

???????????

• DMA????????
• ??cgroup?????
• ?????page in/out?swapin/out???
• Dirty ratio?????
• swappiness?????

???????????????????????Linux?????????????????????????

转载地址：http://npt.baihongyu.com/