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[esp32] Enable LWIP core locking on ESP-IDF to reduce socket operation overhead (#9857)

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This commit is contained in:
J. Nick Koston
2025-07-28 13:33:54 -10:00
committed by GitHub
parent 2c9987869e
commit 4f425c700a
1 changed files with 20 additions and 0 deletions
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20
esphome/components/esp32/__init__.py
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@@ -571,6 +571,8 @@ CONF_SDKCONFIG_OPTIONS = "sdkconfig_options"
CONF_ENABLE_LWIP_DHCP_SERVER = "enable_lwip_dhcp_server"
CONF_ENABLE_LWIP_MDNS_QUERIES = "enable_lwip_mdns_queries"
CONF_ENABLE_LWIP_BRIDGE_INTERFACE = "enable_lwip_bridge_interface"
CONF_ENABLE_LWIP_TCPIP_CORE_LOCKING = "enable_lwip_tcpip_core_locking"
CONF_ENABLE_LWIP_CHECK_THREAD_SAFETY = "enable_lwip_check_thread_safety"
def _validate_idf_component(config: ConfigType) -> ConfigType:
@@ -619,6 +621,12 @@ ESP_IDF_FRAMEWORK_SCHEMA = cv.All(
cv.Optional(
CONF_ENABLE_LWIP_BRIDGE_INTERFACE, default=False
): cv.boolean,
cv.Optional(
CONF_ENABLE_LWIP_TCPIP_CORE_LOCKING, default=True
): cv.boolean,
cv.Optional(
CONF_ENABLE_LWIP_CHECK_THREAD_SAFETY, default=True
): cv.boolean,
}
),
cv.Optional(CONF_COMPONENTS, default=[]): cv.ensure_list(
@@ -785,6 +793,18 @@ async def to_code(config):
if not advanced.get(CONF_ENABLE_LWIP_BRIDGE_INTERFACE, False):
add_idf_sdkconfig_option("CONFIG_LWIP_BRIDGEIF_MAX_PORTS", 0)
# Apply LWIP core locking for better socket performance
# This is already enabled by default in Arduino framework, where it provides
# significant performance benefits. Our benchmarks show socket operations are
# 24-200% faster with core locking enabled:
# - select() on 4 sockets: ~190μs (Arduino/core locking) vs ~235μs (ESP-IDF default)
# - Up to 200% slower under load when all operations queue through tcpip_thread
# Enabling this makes ESP-IDF socket performance match Arduino framework.
if advanced.get(CONF_ENABLE_LWIP_TCPIP_CORE_LOCKING, True):
add_idf_sdkconfig_option("CONFIG_LWIP_TCPIP_CORE_LOCKING", True)
if advanced.get(CONF_ENABLE_LWIP_CHECK_THREAD_SAFETY, True):
add_idf_sdkconfig_option("CONFIG_LWIP_CHECK_THREAD_SAFETY", True)
cg.add_platformio_option("board_build.partitions", "partitions.csv")
if CONF_PARTITIONS in config:
add_extra_build_file(