event buffer timeout reporting is too noisy

[dd1]

ss_timed_mutex_wait_for_sec: long wait for mutex buffer mutex, 0.0 seconds. 315.0 seconds until timeout

best I can tell, often enough locking an event buffer takes longer than ??? milliseconds. this is unexpected and annoying (linux/c++ mutexes are “unfair”). we should not complain about it too much.

K.O.