[GitHub] [airflow] potiuk commented on issue #6627: [AIRFLOW-5931] Use os.fork when appropriate to speed up task execution.

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potiuk commented on issue #6627: [AIRFLOW-5931] Use os.fork when appropriate to speed up task execution.
URL: https://github.com/apache/airflow/pull/6627#issuecomment-557299451
 
 
   But @dimberman ->  multiprocessing also uses os.fork() underneath in fork mode (default for Linux). I have my reservations with using mutlprocessing (but mostly because people do not realise that it actually uses fork (and we plan to use it anyway so no difference). 
   
   Using multiprocessing might be a more portable way if we consider running it in different environments. Note that in python 3.8 default mode for the new process is spawn as forking on MacOS might cause crashes because threads are not safe for forking and some system libraries on MacOS run threads. So using multiprocessing.Process will be slower on MacOS in 3.8 but won't crash.

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