Usage: callgrind_control [options] [ <PID>|<Name> ...]
If no PIDs/Names are given, an action is applied to all currently
active Callgrind runs. Default action is printing short information.
Options:
-h Print this help text
-v Print version
-q Be quiet
-l Print more information
-s Print status information
-b Print backtrace information
-e [A,..] Print event counters for A,.. [default: all]
-d [str] Request a profile dump, include <str> as trigger hint
-z Zero all cost counters
-k Kill
-i on/off Switch instrumentation state on/off
-w <dir> Manually specify the working directory of a callgrind run
