Problem with time command
luzar722 at gmail.com
Fri Apr 21 16:31:40 UTC 2017
Was testing the time command. These problems came to light.
time [-al] [-h | -p ] utility-name
issuing time -h custom.refresh
results in error message -h: Command not found
issuing time -p custom.refresh
results in error message -p: Command not found
The DESCRIPTION says,
The time utility executes and times the specified utility. After the
utility finishes, time writes to the standard error stream, (in
seconds): the total time elapsed, the time used to execute the utility
process and the time consumed by system overhead.
issuing time custom.refresh
results in this output
0.089u 0.469s 0:01.44 37.5% 32+181k 64+137io 709pf+0w
so based on the description
0.089u = the total time elapsed
0.469s = the time used to execute the utility [ie custom.refresh]
0:01.44 = time consumed by system overhead
These 3 figures do not cross foot balance.
Shouldn't time consumed by system overhead + the time used to execute
the utility = the total time elapsed?
so that leaves
32+181k 64+137io 709pf+0w
without any description of what it is and no explanation of what the u
suffix of 0.089u means or the s suffix of 0.469s means. The time command
description already states [in seconds].
Can anyone shed some light on these problems?
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