Method and apparatus for implementing command queue ordering with benefit determination of prefetch operations

   
   

A method and apparatus are provided for implementing command queue ordering with benefit determination of a prefetch operation. For each command in a hard disk drive command queue, a rotational position optimization (RPO) score is calculated. A prefetch benefit is calculated for each command in the hard disk drive command queue within a working partition. The RPO score is modified utilizing the calculated prefetch benefit for the commands in the hard disk drive command queue within the working partition. A best RPO score is identified to select a next command in the hard disk drive command queue to execute.

_ uno método y aparato ser proporcionar para implementing comando coleta ordering con ventaja determinación uno prefetch operación. _ para cada comando en uno duro disco conducir comando coleta, uno rotatorio posición optimización (RPO) cuenta ser calculated. _ uno prefetch ventaja ser calculated para cada comando en duro disco conducir comando coleta dentro uno working partición. _ RPO cuenta ser modificar utilizing calculated prefetch ventaja para comando en duro disco conducir comando coleta dentro working partición. _ uno mejor RPO cuenta ser identificar seleccionar uno siguiente comando en duro disco conducir comando coleta ejecutar. _

 
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> Real-time shared disk system for computer clusters

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