Budget-aware event information collection during program execution

An apparatus for budget-aware event information collection during execution of a program on the apparatus, the apparatus comprising:

• one or more computer processors;
• and
• an auditor module configured to be operated by the one or more computer processors to:
• determine, for a thread of the program executing on the apparatus, a collection ratio of a number of events associated with execution of the thread that have occurred during a period of execution of the thread and for which information has been collected to a total number of associated events that have occurred during the period of execution of the thread;
• determine, based at least in part on the determined collection ratio, whether a slowdown cost budget has been exceeded;
• and
• determine, based at least in part on a result of the determination of whether a slowdown cost budget has been exceeded, whether to collect information about associated events occurring during execution of the thread subsequent to the period of execution.

A computer-implemented method for budget-aware event information collection during execution of a program on a computing device, the method comprising:

• determining, by the computing device, a collection ratio of a number of events associated with execution of the thread that have occurred during a period of execution of the thread and for which information has been collected to a total number of associated events that have occurred during the period of execution of the thread;
• determining, by the computing device, based at least in part on the determined collection ratio, whether a slowdown cost budget has been exceeded;
• and
• determining, based at least in part on a result of the determining of whether a slowdown cost budget has been exceeded, by the computing device, whether to collect information about associated events occurring during execution of the thread subsequent to the period.