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Old 03-12-2014, 05:14 AM   #1
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Registered: Feb 2011
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compare between softwares

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).
Old 03-12-2014, 08:36 AM   #2
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Registered: Jun 2008
Distribution: debian, ubuntu, sidux
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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== 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== 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== 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%

Last edited by estabroo; 03-12-2014 at 08:38 AM. Reason: removed formatting blocks
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