Crucial MX100 512GB Solid State Drive Review

IOMeter

IOMeter is an I/O subsystem measurement and characterization tool for single and clustered systems. It is used as a benchmark and troubleshooting tool and is easily configured to replicate the behaviour of many popular applications. One commonly quoted measurement provided by the tool is IOPS.

IOMeter allows the configuration of disk parameters such as the ‘Maximum Disk Size’, ‘Starting Disk Sector’ and ‘# of Outstanding I/Os’. This allows a user to configure a test file upon which the ‘Access Specifications’ configure the I/O types to the file. Configurable items within the Access Specifications are:

• Transfer Request Size
• Percent Random/Sequential distribution.
• Percent Read/Write Distribution
• Aligned I/O’s.
• Reply Size
• TCP/IP status
• Burstiness.

Unconditioned Read / Write

Conditioned Read / Write

As the volume fills we do note a slight drop in performance when at around 25% full, however as the volume continues to fill, this figure is reversed with the IOPs rising to levels close to those listed in the specifications.

Drive Comparison

For the purpose of drive comparison I use the performance figures from both unconditioned and conditioned tests with 0% data fill.

Once again, for a budget drive it is quite a feat to see it positioned so high up in the rankings, leaving drives such as a Vertex 460 and M550 behind.