vzs is the size of the virtual memory used by the process (from /proc//stat). This can include uninitialized memory and memory shared with other processes, and is therefore largely useless to determine how much memory a process actually needs.

    MemTotal is found in /proc/meminfo, and is basically how much RAM you have.

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    vzs是进程所使用的虚拟内存的大小(来自/proc/<pid>/stat)。这可能包括未初始化的内存和与其他进程共享的内存，因此在确定一个进程实际需要多少内存方面基本上是无用的。
    MemTotal是在/proc/meminfo中找到的，基本上就是你有多少内存。
    %vxs = vzs/total