在Linux上:

使用/usr/bin/time -v <program> <args>查找“最大常驻集大小”。

(不要与Bash time内置命令混淆!所以使用完整路径，/usr/bin/time)

例如:

> /usr/bin/time -v ./myapp
        User time (seconds): 0.00
        . . .
        Maximum resident set size (kbytes): 2792
        . . .

在BSD、MacOS上:

使用/usr/bin/time -l <program> <args>，查找“最大常驻集大小”:

>/usr/bin/time -l ./myapp
        0.01 real         0.00 user         0.00 sys
      1440  maximum resident set size
      . . .

/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。

请务必回答这个问题。提供详细信息并分享您的研究!

对不起，我是第一次来这里，只能问问题。

使用建议:

valgrind --tool=massif --pages-as-heap=yes --massif-out-file=massif.out ./test.sh; grep mem_heap_B massif.out | sed -e 's/mem_heap_B=\(.*\)/\1/' | sort -g | tail -n 1

然后:

grep mem_heap_B massif.out
...
mem_heap_B=1150976
mem_heap_B=1150976
...

这与顶部命令在相同时刻所显示的非常不同:

14673 gu27mox   20   0 3280404 468380  19176 R 100.0  2.9   6:08.84 pwanew_3pic_com

Valgrind的测量单位是什么??

/usr/bin/time -v ./test.sh从来没有回答-你必须直接将可执行文件提供给/usr/bin/time:

/usr/bin/time -v  pwanew_3pic_compass_2008florian3_dfunc.static  card_0.100-0.141_31212_resubmit1.dat_1.140_1.180   1.140 1.180 31212


    Command being timed: "pwanew_3pic_compass_2008florian3_dfunc.static card_0.100-0.141_31212_resubmit1.dat_1.140_1.180 1.140 1.180 31212"

    User time (seconds): 1468.44
    System time (seconds): 7.37
    Percent of CPU this job got: 99%
    Elapsed (wall clock) time (h:mm:ss or m:ss): 24:37.14
    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): 574844
    Average resident set size (kbytes): 0
    Major (requiring I/O) page faults: 74
    Minor (reclaiming a frame) page faults: 468880
    Voluntary context switches: 1190
    Involuntary context switches: 20534
    Swaps: 0
    File system inputs: 81128
    File system outputs: 1264
    Socket messages sent: 0
    Socket messages received: 0
    Signals delivered: 0
    Page size (bytes): 4096
    Exit status: 0

[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

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

你可以使用Valgrind这样的工具来做到这一点。