Placing a processor into a gradual slow mode of operation in...

Electrical computers and digital processing systems: processing – Dynamic instruction dependency checking – monitoring or... – Reducing an impact of a stall or pipeline bubble

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07434033

ABSTRACT:
Mechanisms for placing a processor into a gradual slow down mode of operation are provided. The gradual slow down mode of operation comprises a plurality of stages of slow down operation of an issue unit in a processor in which the issuance of instructions is slowed in accordance with a staging scheme. The gradual slow down of the processor allows the processor to break out of livelock conditions. Moreover, since the slow down is gradual, the processor may flexibly avoid various degrees of livelock conditions. The mechanisms of the illustrative embodiments impact the overall processor performance based on the severity of the livelock condition by taking a small performance impact on less severe livelock conditions and only increasing the processor performance impact when the livelock condition is more severe.

REFERENCES:
patent: 6532574 (2003-03-01), Durham et al.
patent: 6968431 (2005-11-01), Mayfield
patent: 2003/0115559 (2003-06-01), Sawada
patent: 2004/0093198 (2004-05-01), Neifert et al.
patent: 2004/0215933 (2004-10-01), Nguyen et al.
patent: 2006/0064695 (2006-03-01), Burns et al.
patent: WO 99/21081 (1999-04-01), None
Tanenbaum, Andrew S., Structured Computer Organization, Second Edition, Prentice-Hall, Inc., pp. 10-12, 1984.
U.S. Appl. No. 11/279,777, filed Apr. 14, 2006, Abernathy et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Placing a processor into a gradual slow mode of operation in... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Placing a processor into a gradual slow mode of operation in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Placing a processor into a gradual slow mode of operation in... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4009215

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.