# UI performance

Software version: R1FA001 prg1225-3062_DEV_YE

## General

Explanations
tRef | Maximum allowed execution time for the action.
tExec | Actual execution time for the action.
When | Time in ms since system startup.
Action func | The address of the action function. In most cases, the description provides enough information to deduce which function it is, but if it doesn’t, you can look up this address in the map file.

Error levels
Critical | tExec > 1000 ms
Error | tExec > 5 * tRef | Level disabled. - Set CFG_UI_BOOKSHELF_PERFORMANCE_LOG_LEVEL = 1 to enable.
Warning | tExec > tRef | Level disabled. - Set CFG_UI_BOOKSHELF_PERFORMANCE_LOG_LEVEL = 2 to enable.

## Errors

When | Action func | tExec | tRef | Description
--- | --- | --- | --- | ---
13221 | 0x1453320d | 2076 | 150 | Action function in [InitBook#131] [InitBook_StartUp_Page] triggered by Event#7 [UI_INITIATING_EVENT]