Hi,
I have softwares that i want to compare between them.
Comparison parameters are:
1. memory usage
2. cpu usage
3. time of running

How can i do that?
i didnt write those softwares (i dont have access to the code).
Thanks,
Pap

You can use valgrind to get memory usage and time to get cpu and time running information

for example

valgrind /bin/ls -lR /var > /dev/null
==24054== Memcheck, a memory error detector
==24054== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al.
==24054== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info
==24054== Command: /bin/ls -lR /var
==24054==
==24054== HEAP SUMMARY:
==24054== in use at exit: 2,747,654 bytes in 59 blocks
==24054== total heap usage: 49,159 allocs, 49,100 frees, 27,671,387 bytes allocated
==24054==
==24054== LEAK SUMMARY:
==24054== definitely lost: 0 bytes in 0 blocks
==24054== indirectly lost: 0 bytes in 0 blocks
==24054== possibly lost: 0 bytes in 0 blocks
==24054== still reachable: 2,747,654 bytes in 59 blocks
==24054== suppressed: 0 bytes in 0 blocks
==24054== Rerun with --leak-check=full to see details of leaked memory
==24054==
==24054== For counts of detected and suppressed errors, rerun with: -v


time /bin/ls -lR /var > /dev/null
0.086u 0.199s 0:00.89 30.3% 0+0k 11784+0io 0pf+0w

time gives user, system, real, cpu%

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