Why doesn’t high IOPS/low latency Fusion IODrive improve query performance?

Hi experts,

  I saw a few case studies in Fusion IO. This case (http://www.fusionio.com/case-studies/betonsoft/ ) shows 10X faster checkdb run times using Fusion IO. This case (http://www.fusionio.com/case-studies/equinox/ )shows 18X faster query load improvement. So I run a POC recently.

  In the configuration, I compare EVA 8100(168 * 15Krpm FC HDDs) with Fusion IO Duo 2.4TB. In SQLIO, you can see my test result shows 42K IOPS(100% read) which is almost the same as Microsoft test. Also, the average latency is 1ms.