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Seagate Constellation.2 1TB 2.5-inch SATA Hard Drive - Benchmarks - Crystal Disk Mark

By: Chris Ramseyer | HDDs in Storage | Posted: Jan 20, 2011 7:43 am
TweakTown Rating: 91%Manufacturer: Seagate



Version and / or Patch Used:3.0 Technical Preview
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CrystalDiskMark is a disk benchmark software.


Key Features:-


* Sequential reads/writes
* Random 4KB/512KB reads/writes
* Text copy
* Change dialog design
* internationalization (i18n)


Note: Crystal Disk Mark 3.0 is not available to the public yet, but the Technical Preview does allow us to test 4K performance at queue depths of 4 and 32 in addition to 1. The current release Crystal Disk Mark only shows us QD 1.




We use CDM mainly for looking at 4k and NCQ on solid state drives. Platter drives have yet to catch SSDs in 4k performance, but we can still use the software to see how well native command queuing is working on a drive. Here we see that a single 4k hit delivers just under 1MB/s, but once we get to a depth of 32 the performance increases to around 2.3MB/s.




NCQ on the write side shows the 4k performance at nearly the exact same levels.


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