I have a Dell PE2590 with a PERC5 handling a 6 disk RAID5 array. Write-back caching is enabled but it's defaulting to write-through. This is obviously murdering performance (writes = 30Mbps vs 300Mbps ...

A disk or memory cache that supports the caching of writing. Data written by the CPU to memory or to disk is also written into the cache. Write performance is not improved with this method. However, ...

A disk or memory cache that supports writing. Data normally written to memory or to disk by the CPU is first written into the cache. During idle machine cycles, the data are written from the cache ...

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Part 2 applies the concepts introduced here to the Blackfin processor. It will be published Monday, February 7. This series reviews techniques you can use to tune DSP system performance, using the ...