Thread switch upon spin loop detection by threshold count of...

Details Thread switch upon spin loop detection by threshold count of... Thread switch upon spin loop detection by threshold count of...

2007-01-16

2007-01-16

Kim, Kenneth S. (Department: 2111)

Electrical computers and digital processing systems: virtual mac

Task management or control

Process scheduling

C712S241000, C718S104000, C718S108000

Reexamination Certificate

active

10990385

ABSTRACT:
The present invention relates to a processor system. The processor system is made up of a multithread control unit for selectively making switching among said threads to be executed in an arithmetic unit, a loop predicting unit for predicting a loop of an instruction string on the basis of a processing history of a branch instruction in the thread, and a loop detecting unit for, when the loop predicting unit predicts the loop, detecting the loop on the basis of an instruction. When the loop detecting unit detects the loop, the multithread control unit making the switching from the thread, which is in execution in the arithmetic unit, to a different thread. This prevents a wait condition stemming from the loop from interfering with the execution of other threads without retouching software.

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patent: 2002-278752 (2002-09-01), None
patent: 5-12010 (2003-01-01), None

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