github/esphome
2
0
Fork 0
mirror of https://github.com/esphome/esphome.git synced 2026-09-12 15:57:33 +00:00
Code Issues Packages Projects Releases Wiki Activity

[logger] Add comment explaining why compiled log level matters

Browse Source
This commit is contained in:
J. Nick Koston
2026-03-26 08:27:00 -10:00
parent da54960191
commit 8677dafae8
1 changed files with 4 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
esphome/components/logger/logger.cpp
+4
View File
@@ -244,6 +244,10 @@ void Logger::dump_config() {
#ifdef USE_ZEPHYR
dump_crash_();
#endif
// Warn users that VERBOSE/VERY_VERBOSE logging impacts performance.
// The compiled log level (ESPHOME_LOG_LEVEL) is what matters here — even if
// initial_level is set lower at runtime, log messages at the compiled level
// are still formatted (vsnprintf) and written to UART which is blocking.
#if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERY_VERBOSE
if (this->current_level_ >= ESPHOME_LOG_LEVEL_VERY_VERBOSE) {
ESP_LOGW(TAG, "VERY_VERBOSE logging is active. This will significantly impact device performance and may cause "