| 摘要 |
A multiprocessing system, including a multithreading microprocessor and a multiprocessor operating system (OS), is disclosed. The microprocessor includes a plurality of thread contexts (TCs), each having a program counter and a general purpose register set for executing a thread. The microprocessor also includes a translation lookaside buffer (TLB), shared by the plurality of TCs rather than being replicated for each of the plurality of TCs, and privileged to be managed only by operating system-privileged threads rather than by user-privileged threads. The OS manages the TLB, and schedules execution of both the operating system-privileged threads and the user-privileged threads on the plurality of TCs.
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