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== linux 进程管理api == * fork 创建新进程 * exec* 用一个新的程序代替当前运行的进程 * wait 等待子进程结束 == 内存管理 == * [[https://en.wikipedia.org/wiki/Sbrk|sbrk]]:sbrk是一个Unix系统调用,用来改变进程数据段的大小,是很多内存分配程序(malloc)的基础之一(另一个是mmap) * [[https://en.wikipedia.org/wiki/Unikernel|Unikernel]] a library OS |