| 摘要 |
A method for managing a mutex in a data processing system is presented. For each mutex, a count is maintained of the number of threads that are spinning while waiting to acquire a mutex. If a thread attempts to acquire a locked mutex, then the thread enters a spin state or a sleep state based on restrictive conditions and the number of threads that are spinning during the attempted acquisition. In addition, the relative length of time that is required by a thread to spin on a mutex after already sleeping on the mutex may be used to regulate the number of threads that are allowed to spin on the mutex.
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