公开(公告)号：US11126474B1

公开(公告)日：2021-09-21

申请号：US15622490

申请日：2017-06-14

Applicant: Amazon Technologies, Inc.

Inventor： Tzachi Zidenberg ,  Adi Habusha ,  Zeev Zilberman

IPC: G06F9/52 ,  G06F9/455 ,  G06F9/48 ,  G06F9/50

Abstract: Techniques for reducing the probability of spinlock and/or reducing the time that a virtual central processing unit (CPU) may hold a lock are provided. In one embodiment, a computer-implemented method includes determining that an executing virtual CPU is holding a lock for exclusive use of a resource, and scheduling the executing virtual CPU to run for up to a specified time period before de-scheduling the executing virtual CPU. In one embodiment, the executing virtual CPU holding the lock writes a value to a register to indicate that the executing virtual CPU is holding the lock.