README.md

os-scheduler-responsiveness-test

This is a Python/Go script that tests responsiveness or interactivity of the OS scheduler. The interactive thread sleeps more than it runs (i.e. user clicks). The script measures interactivity with 3 different tasks (sort 10000 array, read file and print to console, read file and write it to another file). During each process it sleeps for random time between 1s-3s. At the same time, you can run # threads doing is prime function which overwhelm the cpu which is usefull to test the interactivity during heavy tasks running.

Options

python3 responsiveness.py -h 
usage: responsiveness.py [-h] [-i I] [-f F] [--nf NF] [-p P] [--np NP]

optional arguments:
  -h, --help  show this help message and exit
  -i I        number of interactive threads
  -f F        number of read/write files threads
  --nf NF     number of read/write files iterations
  -p P        number of calculate prime threads
  --np NP     number of calculate prime iterations

Note

Use it with AUTOGROUP disabled (on one terminal)

Or if autogroup is enabled, then open 2 terminals and run

terminal1: python3 responsiveness.py -i1 
terminal2: python3 responsiveness.py -p4 --np 4

Example

Python

python3 responsiveness.py -i1 -p4 --np 4

-i is the number of threads for interactive test, usually one or two is good as it represents a user activity

-p is the number of threads performing is prime function

--np the size of numbers in prime test:

for i in range(10001, 10001 * (np + 1), 2):

Go

go run prime.go -p 4 -t 96 & go run interactive.go -t 95

-p int number of threads (default 1) -t float number of seconds (default 10)