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Demartek Shares Benchmark Output File Formats

Updated 16 April 2012 — Added IOmeter 2010

By , Demartek President

We run a variety of benchmark tools in the course of our lab validation tests. We were curious about the actual data that these tools write in their respective data files, so we decided to look inside these files, and share that data. Having knowledge of the data written by these benchmark tools can help decide which tool to use for certain types of tests. This data has implications for compression and data de-duplication. It may also have other implications.

Benchmark tool file formats include:

Other benchmark tool file formats will be added.

For each test tool, we show a snapshot of the data at the beginning of the file and at an address a fair distance into the file. The snapshots were taken from our favorite text editor, UltraEdit, from IDM Computer Solutions, Inc. There are three columns of data in these snapshots:

Benchmark Tool File Output Formats
FIO
FIO 		IOmeter 2006
IOmeter 2006 		IOmeter 2008
IOmeter 2008
IOmeter 2010
IOmeter 2010 		SQLIO
SQLIO 		SQLIOSim
SQLIOSim
VDbench
VDbench

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