Interrupt latency measurement
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United States of America Patent
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Dec 17, 2013
Grant Date -
Sep 13, 2012
app pub date -
Mar 9, 2011
filing date -
Mar 9, 2011
priority date (Note) -
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Abstract
A system and method for setting a first indicator indicating that interrupts are virtually locked, receiving a first interrupt at a processor of a computing device, setting a second indicator indicating the receipt of the first interrupt and recording a first timestamp based on the receipt of the first interrupt. The system and method further adapted to virtually execute a routine for the first interrupt that includes determining if the second indicator is set, record a second timestamp based on the virtual execution of the routine and determine an interrupt latency based on the first and second timestamp.
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