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Intel’s NASPT (NAS Performance Toolkit ) is a benchmark tool designed to enable direct measurement of home network attached storage (NAS) performance. NASPT uses a set of real-world workload traces (high definition video playback and recording, video rendering/content creation and office productivity) gathered from typical digital home applications to emulate the behaviour of an actual application.
We’ve used some of the video and office apps results to highlight a NAS device’s performance.
HD Video Playback
This trace represents the playback of a 1.3GB HD video file at 720p using Windows Media Player. The files are accessed sequentially with 256kB user level reads.
4x HD Playback
This trace is built from four copies of the Video Playback test with around 11% sequential accesses.
HD Video Record
Trace writes an 720p MPEG-2 video file to the NAS. The single 1.6GB file is written sequentially using 256kB accesses.
HD Playback and Record
Tests the NAS with simultaneous reads and writes of a 1GB HD Video file in the 720p format.
Content Creation
This trace simulates the creation of a video file using both video and photo editing software using a mix of file types and sizes. 90% of the operations are writes to the NAS with around 40% of these being sequential.
Office Productivity
A trace of typical workday operations. 2.8GB of data made up of 600 files of varying lengths is divided equally between read and writes. 80% of the accesses are sequential.
Photo Album
This simulates the opening and viewing of 169 photos (approx 1.2GB). It tests how the NAS deals with a multitude of small files.
Video Tests
In the four Video tests of Intel’s NASPT we used, the performance using a 10GbE connection was very, very impressive. The fastest figure for the tests came in the HD Video Playback test with 743.6MB/s in RAID 5. With a 1GbE connection the performance across the arrays is very consistent throughout.
Office Tests
In the NASPT Office tests, the fastest speeds came when the drives were in a RAID 50 array with a 10GbE connection.
SSD RAID
Video Tests
Using the SSD arrays combined with a 10GbE connection the fastest speed we achieved in testing was a very impressive 990.7MB/s in the 4xHD Playback test with the drives built into a RAID 5 array.
Office Tests
With the SSD arrays and a 10GbE connection there was real drop off in performance from the RAID 5 array during the Office Productivity test and again from the RAID 6 array in the Photo Album test.
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