nice – Tarik Billa

Controlling scheduling priority of python threads?

September 11, 2023 by Tarik

I believe that threading priority is not controllable in python due to how they are implemented using a global interpreter lock (GIL). Having said that, even if you could give one thread more CPU processing priority, the python implementation that hands around the GIL would not be aware of this as it handed around the … Read more

Python: ulimit and nice for subprocess.call / subprocess.Popen?

May 24, 2023 by Tarik

Use the preexec_fn parameter to subprocess.Popen, and the resource module. Example: parent.py: #!/usr/bin/env python import os import sys import resource import subprocess def setlimits(): # Set maximum CPU time to 1 second in child process, after fork() but before exec() print “Setting resource limit in child (pid %d)” % os.getpid() resource.setrlimit(resource.RLIMIT_CPU, (1, 1)) print “CPU … Read more