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Code Issues Releases Wiki Activity

Use the process CPU count to determine how many children to create (#8268)

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This commit is contained in:
J. Nick Koston
2025-02-18 11:10:33 -06:00
committed by GitHub
parent 1257640e48
commit abbd72e802
4 changed files with 40 additions and 13 deletions
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16
esphome/core/config.py
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@@ -1,5 +1,4 @@
import logging
import multiprocessing
import os
from pathlib import Path
@@ -94,10 +93,19 @@ def valid_project_name(value: str):
return value
def get_usable_cpu_count() -> int:
"""Return the number of CPUs that can be used for processes.
On Python 3.13+ this is the number of CPUs that can be used for processes.
On older Python versions this is the number of CPUs.
"""
return (
os.process_cpu_count() if hasattr(os, "process_cpu_count") else os.cpu_count()
)
if "ESPHOME_DEFAULT_COMPILE_PROCESS_LIMIT" in os.environ:
_compile_process_limit_default = min(
int(os.environ["ESPHOME_DEFAULT_COMPILE_PROCESS_LIMIT"]),
multiprocessing.cpu_count(),
int(os.environ["ESPHOME_DEFAULT_COMPILE_PROCESS_LIMIT"]), get_usable_cpu_count()
)
else:
_compile_process_limit_default = cv.UNDEFINED
@@ -156,7 +164,7 @@ CONFIG_SCHEMA = cv.All(
),
cv.Optional(
CONF_COMPILE_PROCESS_LIMIT, default=_compile_process_limit_default
): cv.int_range(min=1, max=multiprocessing.cpu_count()),
): cv.int_range(min=1, max=get_usable_cpu_count()),
}
),
validate_hostname,