Quote: use thread lock reservations for faster locking without atomic operations; needs one bit and a shared word of the object header

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This paper proposes a new runtime technique called … The key idea is to allow a lock … acquisition is ultra-fast if the lock is reserved … [p. 131] the other hand, if the lock is reserved for another … … lock reservations can be built on any existing … has one available bit. This bit is used … [p. 132] the vast majority of lock operations are … were performed by the initial lockers … When the [rcnt] field is non-zero, the lock … [with the given tid] … The rcnt field is also intended for recursive … [p. 139] lock reservations sped up more than 58% …   Google-1   Google-2

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