hIOmon SSD Performance Monitor - Understanding desktop usage patterns.

[Ao1]

Here I use the WMI browser to give me a live feed of the top 10 processes, whilst running all the typical programs that I use, namely: Power DVD, WMP, Photoshop, Modern Warfare 2 SP, Tracktor, Office, IE9, Messenger & MS Essentials (Quick scan).

Bandwidth
Interestingly MW2 SP only loaded at a max read transfer rate of 81.78MB/s

If I add up all the top ten maximum max read transfer rates I get a total of 327.12MB/s, so if I wanted to run all of the them at the same time I would need a bandwidth of 327.12MB/s, although that would not be physically possible to do. If I took out MW2 SP I would need a bandwidth of 245.35MB/s, which is possible with the X25-M, but again it would still be physically impossible to run them all at the same time. (Without running a batch file).

The fastest write speed I obtained was 42MB/s using Photoshop. If I add up all the top ten maximum max write transfer rates I get a total of 98.88MB/s, which is within the specs of an X25-M, but again impossible to implement together at the same time.

IOPS
The IOPS constantly change when being monitored so between selecting specific filters it keeps increasing, however it is clear to see that virtually 100% of IOPS are done in less than one millisecond.

Queue depths
The maximum QD's for writes surprised me but the averages (not shown below) are always below 2. The same with reads. I ran more proceses togther than what I would do normally to try and push the QD up.

Now I see exactly why a SSD raid 0 array was not any faster for my particular usage patterns in comparison to a single SSD. I didn't need the bandwidth or an increase in IOPS.