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?????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?????????????????????????
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