Silent store detection and recording in memory storage
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United States of America Patent
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Mar 7, 2017
Issued Date -
N/A
app pub date -
Nov 23, 2015
filing date -
Jun 25, 2015
priority date (Note) -
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Abstract
An aspect includes receiving a write request that includes a memory address and write data. Stored data is read from a memory location at the memory address. Based on determining that the memory location was not previously modified, the stored data is compared to the write data. Based on the stored data matching the write data, the write request is completed without writing the write data to the memory and a corresponding silent store bit, in a silent store bitmap is set. Based on the stored data not matching the write data, the write data is written to the memory location, the silent store bit is reset and a corresponding modified bit is set. At least one of an application and an operating system is provided access to the silent store bitmap.
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