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Central Repository for Wake-and-Go Mechanism

  • US 20110173630A1
  • Filed: 02/01/2008
  • Published: 07/14/2011
  • Est. Priority Date: 02/01/2008
  • Status: Active Grant
First Claim
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1. A method, in a data processing system, for performing a wake-and-go operation, the method comprising:

  • detecting, by a wake-and-go engine within a multiple processor system, a thread that is waiting for an event associated with a target address;

    populating, by the wake-and-go engine, a central repository wake-and-go storage array with the target address;

    responsive to detecting that the thread is waiting for the event, placing the thread in a sleep state;

    responsive to an event that modifies a data value associated with the target address, determining whether to wake the thread; and

    responsive to a determination to wake the thread, placing the thread in a non-sleep state.

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