systemtap точки зондирования (systemtap probe points)
ON-THE-FLY ARMING
The following types of probe points may be armed/disarmed on-the-
fly to save overheads during uninteresting times. Arming
conditions may also be added to other types of probes, but will
be treated as a wrapping conditional and won't benefit from
overhead savings.
DISARMABLE exceptions
kernel.function, kernel.statement
module.function, module.statement
process.*.function, process.*.statement
process.*.plt, process.*.mark
timer. timer.profile
java