METHODS AND APPARATUS FOR SYNCHRONIZING MULTIPLE PROCESSORS OF A VIRTUAL MACHINE
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United States of America Patent
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Issued Date -
Aug 14, 2014
app pub date -
Feb 14, 2013
filing date -
Feb 14, 2013
priority date (Note) -
Abandoned
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Abstract
Methods and apparatus for synchronizing multiple virtual processors of a virtual machine are disclosed. A hypervisor schedules a first virtual processor in a virtual machine to execute using a first physical processor. Subsequently, the hypervisor receives an indication from the first virtual processor that it is waiting on a second different virtual processor. If the second virtual processor is not already running on another physical processor, the hypervisor saves the priority associated with the first virtual processor, lowers the priority associated with the first virtual processor, and schedules the second virtual processor to execute using the first physical processor or another physical processor.
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