time -f '%M' <run_program>

使用Massif: http://valgrind.org/docs/manual/ms-manual.html

因为/usr/bin/time在许多现代发行版中都不存在(取而代之的是Bash内置时间)，你可以使用Busybox time实现带-v参数:

busybox time -v uname -r

它的输出类似于GNU时间输出。 Busybox在大多数Linux发行版(Debian, Ubuntu等)中都是预安装的。如果你使用Arch Linux，你可以安装它:

sudo pacman -S busybox

'htop'是查看哪个进程使用了多少RAM.....的最佳命令

欲知详情 http://manpages.ubuntu.com/manpages/precise/man1/htop.1.html

[编辑:适用于Ubuntu 14.04: /usr/bin/time -v命令确保使用完整路径。]

看起来/usr/bin/time确实给了你这个信息，如果你输入-v(这是在Ubuntu 8.10上)。例如，参见下面的最大常驻集大小:

$ /usr/bin/time -v ls /
....
        Command being timed: "ls /"
        User time (seconds): 0.00
        System time (seconds): 0.01
        Percent of CPU this job got: 250%
        Elapsed (wall clock) time (h:mm:ss or m:ss): 0:00.00
        Average shared text size (kbytes): 0
        Average unshared data size (kbytes): 0
        Average stack size (kbytes): 0
        Average total size (kbytes): 0
        Maximum resident set size (kbytes): 0
        Average resident set size (kbytes): 0
        Major (requiring I/O) page faults: 0
        Minor (reclaiming a frame) page faults: 315
        Voluntary context switches: 2
        Involuntary context switches: 0
        Swaps: 0
        File system inputs: 0
        File system outputs: 0
        Socket messages sent: 0
        Socket messages received: 0
        Signals delivered: 0
        Page size (bytes): 4096
        Exit status: 0

/usr/bin/time可能是你想要的。喜欢的东西。

 /usr/bin/time --format='(%Xtext+%Ddata %Mmax)'

详见第(1)段。