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Using frequency domain to prioritize storage of metadata in a cache

  • US 9,804,973 B1
  • Filed: 11/12/2015
  • Issued: 10/31/2017
  • Est. Priority Date: 01/09/2014
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • measuring an amount of randomness within a plurality of addresses that are referenced in a plurality of accesses to one or more storage devices including adding together frequency component values above a first cutoff frequency in a first frequency distribution of a first frequency domain representation of the plurality of addresses of the plurality of accesses; and

    caching, in dependence upon the amount of randomness for each of the plurality of addresses, metadata associated with one or more of the plurality of addresses.

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