Can I reschedule a process to real time scheduling?











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I'm running some stuff in a python script. At one point there's a few lines of code where I need the timing to be exactly the same every time. The time isn't important - just consistency. Unfortunately, the real world time delay between those things varies by 100s of ms. I assume this because other things taking up processing time in inconsistent amounts.



Is there a way I could do something like renicing, but into real time scheduling just before executing those commands, and then turn it off afterwards so background stuff can resume?



I've tried just renicing the whole script execution to -20 but that only helps a bit.



I can't leave python, the critical stuff contains calls to third party libraries.






python scheduling nice priority







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    I'm running some stuff in a python script. At one point there's a few lines of code where I need the timing to be exactly the same every time. The time isn't important - just consistency. Unfortunately, the real world time delay between those things varies by 100s of ms. I assume this because other things taking up processing time in inconsistent amounts.



    Is there a way I could do something like renicing, but into real time scheduling just before executing those commands, and then turn it off afterwards so background stuff can resume?



    I've tried just renicing the whole script execution to -20 but that only helps a bit.



    I can't leave python, the critical stuff contains calls to third party libraries.






    python scheduling nice priority







    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I'm running some stuff in a python script. At one point there's a few lines of code where I need the timing to be exactly the same every time. The time isn't important - just consistency. Unfortunately, the real world time delay between those things varies by 100s of ms. I assume this because other things taking up processing time in inconsistent amounts.



      Is there a way I could do something like renicing, but into real time scheduling just before executing those commands, and then turn it off afterwards so background stuff can resume?



      I've tried just renicing the whole script execution to -20 but that only helps a bit.



      I can't leave python, the critical stuff contains calls to third party libraries.






      python scheduling nice priority







      share|improve this question













      I'm running some stuff in a python script. At one point there's a few lines of code where I need the timing to be exactly the same every time. The time isn't important - just consistency. Unfortunately, the real world time delay between those things varies by 100s of ms. I assume this because other things taking up processing time in inconsistent amounts.



      Is there a way I could do something like renicing, but into real time scheduling just before executing those commands, and then turn it off afterwards so background stuff can resume?



      I've tried just renicing the whole script execution to -20 but that only helps a bit.



      I can't leave python, the critical stuff contains calls to third party libraries.






      python scheduling nice priority




      python scheduling nice priority






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










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