Returns an instance of the scoped performance timer for a specific group. The scoped timer is a timer that measures timestamps from the moment of the first scope using. This moment is called the time origin.
group name, that timer should belong to. It appears at the beginning of all time marks namespaces.
scope name, that defines the scope. It doesn't appear in any time mark namespaces.
Returns an instance of the performance timer for a specific group
group name, that timer should belong to. It appears at the beginning of all time marks namespaces.
A factory to create performance timers