The DEBUG_SHOW_SEM setting in notes.ini can be set to enable semaphore
diagnostic trace messages. DEBUG_SHOW_SEM=1 to enable the tracing. DEBUG_SHOW_SEM=0
to disable the tracking. The default state is 'disabled'.
When absent or set to 0 the default behavior is to not generate these diagnostic
This setting (almost) never be used. Leaving it disabled will provide a
slight performance improvement. This setting should only be enabled for
data gathering under instruction from field/support personnel. When debugging
semaphore problems it's handy to have this setting enabled.
DEBUG_SHOW_TIMEOUT, DEBUG_CAPTURE_TIMEOUT, DEBUG_SEM_TIMEOUT
The IBM developerWorks article entitled "Lotus
Domino 7 server performance, Part 1
recommends that the setting be enabled. That is debatable.
Domino Configuration Tuner:
This setting is included in the DCT
catalog of best practices.