STINNER Victor <[email protected]> added the comment:
I cannot reproduce the issue. IMO it has been fixed.
Moreover, you must join timers using timer.join(): a timer remains a thread.
Code:
---
import os
import threading
os.system(f"grep ^VmRSS /proc/{os.getpid()}/status")
# warmup
for n in range(10):
timer = threading.Timer(5, None)
timer.start()
timer.cancel()
timer.join()
os.system(f"grep ^VmRSS /proc/{os.getpid()}/status")
for n in range(1000):
timer = threading.Timer(5, None)
timer.start()
timer.cancel()
timer.join()
os.system(f"grep ^VmRSS /proc/{os.getpid()}/status")
---
Output on Linux with the main branch of Python (3.11):
---
VmRSS: 10924 kB
VmRSS: 11104 kB
VmRSS: 11104 kB
---
----------
nosy: +vstinner
resolution: duplicate -> fixed
stage: -> resolved
status: open -> closed
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<https://bugs.python.org/issue43050>
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