Echo 2.3.1: accurate CPU and GPU temperature
Translated automatically from Russian. Read the original →
What Was Fixed
In Echo 2.3, the CPU temperature could show ~105 °C on a cold laptop at idle. The reason: the SMC, along with the real sensors, reports throttle limits — “overheat threshold” constants for each P-cluster that are read as regular values (93–105 °C). The temperature tab shows the maximum across all keys, and the stored limit always won out over the real sensors. The filter that separates limits from measurements trusted a key forever after its first change — and limits shift over time, so once a key shifted, it stuck to the maximum forever.
Now a key must constantly “move” to be included in the maximum: a key with no movement is treated as a limit immediately, and a key that has sat at the same value for 12 seconds is excluded again. The idle temperature is now honest right away — 55–60 °C, with no starting window of 105 °C after launch.
The second fix is small but nice: a single failed sensor read cycle no longer hides the temperature tab until restart — availability follows the last read.
Update
Echo 2.3.1 is already on GitHub. The update will arrive automatically via the built-in updater, or download Echo-2.3.1.dmg (4.9 MB) from the releases page.