Wednesday, August 11, 2010

Direct I/O vs. Cached I/O

The simple difference between Direct I/O and Cached I/O:

Direct I/O :


































Cached I/O :



































Keep in mind, all of your data won't be cached all of the time. Only a small amount will be, so you won't get that high performance 100% of the time. If you want that, go with SSD.

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