liftoff

liftoff is a small tool that works similar to the Unix command time. It mainly prints the execution time of a command but in a higher granularity. Additionally it prints the ressource usage observed by the kernel. This output can be redirected to an output file.

• start time
• real execution time
• user execution time
• system execution time
• initial scheduler affinity set
• maximum resident set size
• soft page faults
• hard page faults
• file input operations
• file output operations
• voluntary context switches
• involuntary context switches
• exit code
• command line

Example

$ liftoff -- echo "Hello world!"
Hello world!
start time:                   2016-06-09 16:29:39.713507
real execution time:          0.001824 s
user execution time:          0.000000 s
system execution time:        0.000000 s
initial affinity set:         0 1 2 3 
maximum resident set size:    2104 kb
soft page faults:             82
hard page faults:             0
fs input ops:                 0
fs output ops:                0
voluntary context switches:   18
involuntary context switches: 1
exit code:                    0
command line:                 echo Hello world!