package async_unix

num_threads is the number of currently open threads.

num_completed_work is the total number of jobs that the thread pool has completed, including work completed by reserved helper threads. The previous value of num_completed_work can be subtracted from this to get the number of jobs completed since the previous stats.

unfinished_work is the current total number of jobs that have been added to the thread pool but not completed, including work added to helper threads via add_work_for_helper_thread.

total_working_time is the total amount of time spent working on jobs across all threads, including jobs that are currently in progress. E.g. if 5 threads each run a 1s job, this will be 5s. The previous value of total_working_time can be subtracted from this to get the amount of time spent working since the last previous stats.

max_unfinished_work is the max observed value of unfinished_work since the last time stats were collected.

max_queue_wait is the max observed time that work has waited in the queue to be assigned an available thread to run on. This includes both work that has started, and work that is waiting to start. This does not include work added directly to helper threads via add_work_for_helper_thread.