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💡 Newskategorie: Linux Tipps
🔗 Quelle: reddit.com
This is a python 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.
This tool shows some differences between two linux cpu schedulers cfs and cachy
```
python3 responsiveness.py -i1 -p4 --np 4
cfs
0 prime time: 117.67925237099999 1 prime time: 118.21711467099999 2 prime time: 117.73428037500001 3 prime time: 117.94308160699998 0 total response time: 1.7313118889998407 runs: 59 average: 0.029344269305082046
0 prime time: 117.39117799799999 1 prime time: 116.843602734 2 prime time: 117.548042081 3 prime time: 117.06012180399998 0 total response time: 1.5514819410002474 runs: 57 average: 0.02721898142105697
0 prime time: 117.895916193 1 prime time: 117.52486103799998 2 prime time: 117.36508882599998 3 prime time: 117.68883336199997 0 total response time: 1.9522037520001163 runs: 63 average: 0.03098736114285899
Cachy CPU scheduler v5.9-r1
0 prime time: 117.76532076499984 1 prime time: 117.80854429700003 2 prime time: 117.71759791300019 3 prime time: 117.54894736100005 0 total response time: 1.0005061630004093 runs: 58 average: 0.017250106258627745
0 prime time: 117.21840353000016 1 prime time: 117.34062325900004 2 prime time: 117.55275667900014 3 prime time: 117.29024891299991 0 total response time: 0.8467758320007306 runs: 55 average: 0.015395924218195101
0 prime time: 118.15438402999985 1 prime time: 118.598745689 2 prime time: 118.86651868100012 3 prime time: 118.57876234199989 0 total response time: 1.2112995319992024 runs: 62 average: 0.019537089225793586
```
https://github.com/hamadmarri/os-scheduler-responsiveness-test
your thoughts and opinions please
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