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Data transfer command latency of a host device

  • US 10,642,764 B1
  • Filed: 03/01/2019
  • Issued: 05/05/2020
  • Est. Priority Date: 03/01/2019
  • Status: Active Grant
First Claim
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1. A method of operating an input/output device, the method comprising:

  • the input/output device interacting with a host device workload execution profiler to achieve a workload type lock;

    the input/output device correlating the workload type lock to a workload type;

    comparing a host device workload threshold with one or more host perfection scores;

    wherein the host perfection scores are calculated for each data input or data output initiator of the host device using a ranking mechanism;

    wherein each host perfection score is determined by;


    (W1*A1)+(W2*A2)+ . . . +(Wn*An)where A1, A2, through An are host measurement attributes and W1, W2, through Wn are relative weight factors applied to each of the host measurement attributes and wherein the sum of the relative weight factors is 100%; and

    the input/output device altering settings for the workload type to affect one of a flash translation layer queue depth, a host device data transfer scheduler, and a command status host notification timing to a host device, based on the host perfection scores.

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