All entries in the ets tables "held" by this process should have the following format: TODO: add duration after mono completion time

{
  unique_ref, # via `make_ref/0`
  pid,
  monotomic_start_time,
  successful_monotomic_completion_time,
  wall_clock_start_time,
  successful_wall_clock_completion_time,
  total_tasks_to_execute,
  success_count,
  failure_count
}

The details of the ets table and the tuple format are an internal detail, and should not be relied upon by other modules.

The table is :public so that message passing is not necessary to allow other processes to write to the table, but we avoid race conditions since only atomic operations are used in this module.