Advanced Micro Devices Corporation

Akash A

Shaju Abraham

Naveen M

Shreeroop Ajaykumar

According to one aspect, a system includes a processor core, a history buffer, a history buffer logic, and an interrupt controller. The processor core is configured to issue a trigger that causes the history buffer logic to, after a fixed time, flush existing entries in the history buffer and start adding new entries into the history buffer. According to another aspect, a system includes a processor core that includes a load store tracker buffer and a prefetch engine. The buffer is configured to track a critical section memory location associated with critical section data fetched by the processor core. The prefetch engine is configured to obtain the critical section memory location from a previous load store tracker buffer associated with a previous lock holder processor core. The system also includes a lock manager configured to signal the buffer to start and stop tracking the critical section memory.

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Bengaluru, India

Akash A