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 Read performance

Let's have a peek at read performance spread out over different file sizes. All Indilinx controller based SSDs haul ass and definitely take a lead in this particular benchmark though USB is a little different.

As you can see SATA2 still dominated with it's direct interface, we spot the sexy ADATA N002 SSD boasting speeds towards 250 MB/sec. On USB 3.0 that performance is a little less but we are nearing 200 MB/sec, which is exceptionally fast.

... compare that to the maximum ~35 MB/sec on USB 2.0

ATTO Write performance

The most important and difficult task for any SSD 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 9 and then measure how fast the storage device is dealing with them.

We again see USB 3.0 competiting with SATA2, very nice USB 3.0 write performance at roughhly 160 MB/sec !