Adaptive lock list searching of waiting threads

摘要

A system and technique for adaptive lock list searching of waiting threads includes logic executable by a processor to: determine an average service time for a lock associated with a shared computing resource; determine an average search time for selecting a thread to next receive the lock from a plurality of threads waiting for the lock; sum the average service time and the average search time; apply a search factor to the summed average service time and average search time to obtain a target search time for searching the waiting threads for selecting the next thread for obtaining the lock; determine a quantity of waiting threads to consider for next obtaining the lock based on the target search time and the average search time, the quantity being less than a total quantity of waiting threads; and identify the next thread to obtain the lock from the quantity.

主权项

1. A system, comprising:
a processor unit; and logic executable by the processor unit to:
determine an average service time for a lock associated with a shared computing resource;determine an average search time for selecting a thread to next receive the lock from a plurality of threads waiting for the lock;sum the average service time and the average search time;apply a search factor to the summed average service time and average search time to obtain a target search time for searching the waiting threads for selecting the next thread for obtaining the lock;determine a quantity of waiting threads to consider for next obtaining the lock based on the target search time and the average search time, the quantity being less than a total quantity of waiting threads; andidentify the next thread to obtain the lock from the quantity.