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Multithreaded Read & Write Patterns

The multithreaded tests simulate a situation when there are one to four clients accessing the hard disk at the same time – the clients’ address zones do not overlap. We will discuss diagrams for a request queue of 1 as the most illustrative ones. When the queue is 2 or more requests long, the speed doesn’t depend much on the number of applications. You can also click the following links for the full results:

The SSDs are rather good at multithreaded reading except for two products. The Kingston suffers a twofold performance hit and the X25-V suddenly feels bad at four data threads. This may be a problem of Intel’s drivers because the single SSD does not show such behavior.

These SSDs are indifferent to the number of write threads. They even try to speed up because the multiple threads are not unlike a requests queue.

 
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