ubuntu进程能杀的都杀光了内存占用还是很高
我把能杀的进程都杀完了，看到free的结果，used - cached - buffers还有703MB。发了工单问客服，一直都答非所问。
客服一直说used - cached - buffers肯定比RES总和要大，可是也不能差这么多吧，RES加起来怎么也没有100MB。
free -mt
htop
ps -aux
/proc/meminfo
写回答
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回1楼gnuhacker的帖子那假如把进程杀掉，操作系统交换出去的这部分内存是不是也应该被释放掉？我现在把进程都杀得差不多没了，内存怎么还没释放呢2015-10-30 10:07:43赞同 展开评论 打赏 -
What is the kernel in the Code Sea?RSS: "Resident Set Size", 实际驻留"在内存中"的内存数. 不包括已经交换出去的代码. 举一个例子: 如果你有一个程序使用了100K内存, 操作系统交换出40K内存, 那么RSS为60K. RSS还包括了与其它进程共享的内存区域. 这些区域通常用于libc库等.-------------------------
smem看看
smem reports physical memory usage, taking shared memory pages into account. Unshared memory is reported as the USS (Unique Set Size). Shared memory is divided evenly among the processes sharing that memory. The unshared memory (USS) plus a process's proportion of shared memory is reported as the PSS (Proportional Set Size). The USS and PSS only include physical memory usage. They do not include memory that has been swapped out to disk.
Memory can be reported by process, by user, by mapping, or systemwide. Both text mode and graphical output are available.2015-10-30 10:02:26赞同 展开评论 打赏
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