ipc/sem_mon_level is a SAP Parameter attribute which is used to control semaphore trace level information. This is available within R/3 SAP systems depending on the version and release level.
Below is the standard documentation available and a few details of the attributes values .
The individual bits have the following meanings:
1 - Statistics for semaphore operations:
Counter for sempahore requests
Counter for semaphore releases
Counter for requests/releases in the time ranges <(><<)>100us,
<(><<)>1ms, <(><<)>10ms, ... <(><<)>10s, >10s
3 - Activate trace for semaphores
7 - Activate CPU time measurement
15 - Activate special measurements for HP multi-processors
31 - Activate trace for internal operations
If all bits are 0, it means that monitoring is deactivated.
See SAP Parameter Documentation for full SAP documentation for this profile parameter.