OCZ Vertex 450 256GB SSD Review
Chris Hadley / 11 years ago
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.
Whilst the read speeds are a little down on those expected, the IOPS however easily pass the 85k rated pushing well over the 90k barrier.
The read speeds are impressive, however the write is even more impressive, with just under a 10% gain on on the 90k IOPs as rated. Almost tipping over the 100k mark, this is one of the strongest drives I have seen for IOPS, more so than the Vector.
