Up to size worker threads (default: every core but one), started on demand and reused. An idle worker does not keep the process alive.
size
Readonly
Terminates every worker; queued tasks fail.
Runs the tasks of one call under one deadline; resolves, in the order given, when all have answered. The heaviest weight is dispatched first, so the longest task does not start last.
weight
Optional
Up to
sizeworker threads (default: every core but one), started on demand and reused. An idle worker does not keep the process alive.