I/O SCHEDULING METHOD USING READ PRIORITIZATION TO REDUCE APPLICATION DELAY
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United States of America Patent
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Issued Date -
Jul 14, 2016
app pub date -
Jan 6, 2016
filing date -
Jan 14, 2015
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Abstract
An I/O scheduler having reduced application delay is provided for an electronic device having storage media and running at least one application. Each application interfaces with the storage media through an I/O path. Each application issues I/O requests requiring access to the storage media. The I/O requests include reads from the storage media and writes to the storage media. The I/O requests are ordered in the I/O path such that the reads are assigned a higher priority than the writes. The I/O requests are dispatched from the I/O path to the storage media in accordance with ordering step such that the reads are dispatched before the writes. The scheduler's dispatch can also apply concurrency parameters for the electronic device.
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