Adjustment of post and non-post packet transmissions in a communication interconnect
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United States of America Patent
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Jul 1, 2014
Grant Date -
Sep 13, 2012
app pub date -
Mar 9, 2011
filing date -
Mar 9, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
In a communication interconnect such as PCIe which favors post transmissions such as write requests over non-post transmissions such as read requests and completions, methods and systems for shortening the delay for non-post transmissions while maintaining fairness among the post transmissions. Undispatched non-post transmission requests are monitored on a running basis; and when a running value of the undispatched non-post transmission requests exceeds a threshold; ones of the post transmission requests are randomly dropped.
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