Efficient thread-safe tracking of function usage in distributed-processing systems

A method, comprising:

• executing a set of processes in one or more applications on one or more computer systems;
• and
• for each process in the set of processes:
• executing a set of threads in the process that perform calls to a set of functions in a distributed-processing system;
• when a thread in the set of threads performs a call to a function in the set of functions, identifying a hash entry representing the function in a hash table;
• recording the call in the hash entry representing the function by incrementing a counter in the hash entry, wherein different hash entries respectively store counters for different functions among the set of functions;
• and
• using a collector thread in the process to update a data store containing usage data for the process with values of the counters for the calls to the set of functions.

An apparatus, comprising:

• one or more processors;
• and
• memory storing instructions that, when executed by the one or more processors, cause the apparatus to:
• execute a set of processes in one or more applications on one or more computer systems;
• and
• for each process in the set of processes:
• execute a set of threads in the process that perform calls to a set of functions in a distributed-processing system;
• when a thread in the set of threads performs a call to a function in the set of functions, identifying a hash entry representing the function in a hash table;
• record the call in the hash entry representing the function by incrementing a counter in the hash entry, wherein different hash entries respectively store counters for different functions among the set of functions;
• and
• use a collector thread in the process to update a data store containing usage data for the process with the values of the counters for the calls to the set of functions.