time.sleep waits less than expected #9693
Description
CircuitPython version
Adafruit CircuitPython 8.1.0-beta.1-48-g98a1083d6-dirty on 2023-08-22; ESP32-S3-DevKitC-1-N32R8 with ESP32S3Code/REPL
import time
LOOP=200
acc = 0
for i in range(LOOP):
t = time.monotonic_ns()
time.sleep(0.01)
t2 = time.monotonic_ns()
diff_us = (t2-t) // 1000
acc += diff_us
avg = acc / LOOP
print(f'expected 10000 us, got {avg} us')Behavior
The result shows:
expected 10000 us, got 9799.07 us
Description
see:
https://forums.adafruit.com/viewtopic.php?p=1024856#p1024856
Additional information
No response