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

Have a peek at synthetically measured read performance. As you can see after 16KB block sizes performance jumps up significantly. That is read performance peaking at roughly 110MB/sec.

ATTO Write performance

The most important and difficult task for any storage unit is writing really small files fast. Have a look at this WRITE test. We scale 4KB block sizes to 1024KB block sizes in bursts of 256MB with a queue depth of 10 and then measure how fast the storage device is dealing with them.

As you can see the storage device max out at roughly 110 MB/sec on write performance. That's nice.