SSD Performance Atto Disk Benchmark
Atto Disk Benchmark
One of the finest tools available to measure storage performance is ATTO. I love it to death as it is so reliable and produces such accurate results. The great thing about ATTO is that we can test with predefined block sizes. So we can test with a 32MB sequence of 4KB files, yet also 32MB in 1MB files. This gives us an excellent scope of overall performance with small and large files.
ATTO Write performance
The most important and difficult task for any storage unit is ... writing really small files fast, so let's start off there and have look at that with this WRITE test. We scale 4KB block sizes to 1024KB block sizes in bursts of 256MB with a queue depth of 4 and then measure how fast the storage device is dealing with them. The storage units we used:
- WD1500HLFS VelociRaptor
- Corsair V128 128GB (MLC) Indilinx
- OCZ Vertex 2 100 GB (MLC) SF1200
- OCZ Enyo 128GB (MLC) Indilix USB 3.0
We recently added the latest revision of the Western Digital WD1500HLFS VelociRaptor to our test suite, it is considered one of the fastest and most expensive 10k RPM HDD your money can get you. It's read/write performance is unprecedented good for a traditional/mechanical HDD of course.
Then the new and also Indilinx based Corsair V128 SSD, the the very fast MLC based OCZ Vertex 2 nearing ~260MB/sec write performance (SandForce SF1200). Look at the 4KB file size test by the way, that is unbelievably good. That's the strength of the SandForce controllers.
In red the OZC Enyo running over USB 3.0, what you need to compare to constantly is the Corsair V128, whihc is a comparable product, yet then over SATA2. Check out the Enyo, nearing in on 200 MB/sec writes over USB, that is imrpessive.
ATTO Read performance
The previous test was write performance, but let's have a peek at read performance. The SandForce-1200 controller based SSDs kicks ass and definitely take a lead in this particular benchmark.
The SSDs are all really fast, but that's 265 MB/sec read performance for the Enyo when it's peaking. In the low file-size spectrum we also see very decent performance. Obviously not SandForce/Vertex 2 performance, but yeah .. really good.
