Combined random 4k SSD benchmark

[Pyrolistical]

Most benchmark programs only test random 4k read or write alone, but this is not how the real world works. Most of the time you'll have a combination of random reads and writes at the same time.

This benchmark is designed to reveal those characteristics and while it is still not a real world test, its much more thorough than a simple benchmark.

Here's an example of the results of this benchmark.

This is my OCZ Vertex 120 GB on ICH9

As you can see at 100% write and 100% read get the same results as you would in other benchmarks, but its the stuff in the middle where it gets interesting.

What this shows is the controller is boosting 4k random writes at the cost of 4k random reads, but its not free trade off. As you can see at 80% read 20% write you have a maximum performance loss of ~35%

What does this mean in the real world? A small amount of random write destroys overall performance. You generally won't get very high 4k random reads in the real world.

Run this for yourself and do post the results

Download Combined random 4k SSD benchmark

Read the instructions.txt