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SYSTEM AND METHOD FOR CONTROLLING CACHE FLUSH SIZE

  • US 20180032439A1
  • Filed: 07/28/2016
  • Published: 02/01/2018
  • Est. Priority Date: 07/28/2016
  • Status: Active Grant
First Claim
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1. A method for controlling cache flush size in an information handling system, comprising:

  • setting a threshold value for modified cache lines in a cache;

    writing to a cache line in the cache;

    determining whether or not the writing causes the cache line to transition to a modified state;

    in response to determining that that the writing causes the cache line to transition to the modified state;

    incrementing a count of modified cache lines in the cache;

    determining, dependent on the incremented count, whether or not the threshold value for modified cache lines in the cache is exceeded; and

    flushing one or more modified cache lines in the cache to persistent memory, in response to determining that the threshold value for modified cache lines in the cache is exceeded.

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