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hi there i'm working on a project about implementing a new scheduler into kernel 2.4 version. i figured out the concepts of how it works. However, i struggle with compute ...
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- 12-18-2012 #1
- Join Date
- Dec 2012
compute the run time and sleep time of a process in kernel 2.4
hi there i'm working on a project about implementing a new scheduler into kernel 2.4 version. i figured out the concepts of how it works. However, i struggle with compute the exact run time (which determines the time process is on the CPU) and sleep time (the time process is waiting for the CPU).by the way, i figured out i could use getnstimeofday() - sleep_time(which is in task_struct) which gives the waiting time of a process (which is mainly what i want). i will be glad for every reply and thanks anyway.
- 01-24-2013 #2
- Join Date
- Apr 2009
- I can be found either 40 miles west of Chicago, or in a galaxy far, far away.
It is easier to get this data from /proc, but the sysstat source code will help you figure out how this is done. In any case, source code excavations can reveal a lot of interesting cruft!Sometimes, real fast is almost as good as real time.
Just remember, Semper Gumbi - always be flexible!