Profile

Profile a single program giving stats for CPU, memory and other things (see man 2 getrusage). The standard input is closed for the child process, so programs like cat or xargs can't be profiled (for now).

The following list is the data that this software can tell you (on Linux systems). The second list is all the features that are unmaintained for linux, maybe on other systems it could be useful.

user CPU time used
system CPU time used
maximum resident set size
page reclaims (soft page faults)
page faults (hard page faults)
block input operations
block output operations
voluntary context switches
involuntary context switches

Unmaintained fields

integral shared memory size
integral unshared data size
integral unshared stack size
swaps
IPC messages sent
IPC messages received
signals received

TODO

Express the CPU time on CPU cycles.
Check if there are another function/library that could tell us more info about a child process.

Example

> ./profile thunar
user CPU time used:                 0s 206666us
system CPU time used:               0s 49999us
residet set size used:              35864
page reclaims (soft page faults):   3979
page faults (hard page faults):     0
block input operations:             0
block output operations:            16
voluntary context switches:         343
involuntary context switches:       26

Copyright

The MIT License (MIT)

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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

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