Yapt v0.3

Yapt v0.3 


Yapt (yet another performance test) is a benchmark recommended by a pair of drive manufacturers and was incredibly difficult to locate as it hasn’t been updated or used in quite some time.  That doesn’t make it irrelevant by any means though, as the benchmark is quite useful.  It creates a test file of about 100 MB in size and runs both random and sequential read and write tests with it while changing the data I/O size in the process.  The results are a good look at overall drive performance.

Western Digital SATA 6Gb/sec 1TB Caviar Black (WD1002FAEX) Review - Storage 31

Western Digital SATA 6Gb/sec 1TB Caviar Black (WD1002FAEX) Review - Storage 32

Western Digital SATA 6Gb/sec 1TB Caviar Black (WD1002FAEX) Review - Storage 33

Western Digital SATA 6Gb/sec 1TB Caviar Black (WD1002FAEX) Review - Storage 34

Yapt was a bit of a mixed bag here.  While the Caviar Black did well in these tests, it only did so under the ICH.  The Marvell controllers seemed to hold it back in random reads, and caused an abnormal linear increase across the random write chart.  Caching helped the Marvell push the Caviar Black to the top of the sequential read chart (blue line), but this was mostly due to the smaller test file size used with Yapt, meaning some of the reads were cache hits and artificially brought the score up.

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