Digital data processing apparatus having hardware...

Electrical computers and digital processing systems: processing – Processing control – Context preserving (e.g. – context swapping – checkpointing,...

Reexamination Certificate

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C711S133000, C710S001000

Reexamination Certificate

active

07624257

ABSTRACT:
Asymmetric hardware support for a special class of threads is provided. Preferably, the special class threads are high-priority, I/O bound threads. In a first aspect, a multithreaded processor contains N sets of registers for supporting concurrent execution of N threads. At least one of the register sets is dedicated for use by a special class of threads, and can not be used by other threads even if idle. In a second aspect, the special class of threads can fill only the a limited portion of the cache memory, in order to reduce flushing of the cache which might otherwise occur.

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