OMeter 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, and TCP/IP status among others.
The first IOmeter benchmarks run are the 128K Sequential read and write tests. With 1272.53 MB/s read and 989.76 MB/s write speeds, the HyperX Predator PCIe SSD does more than great here.
The second test is a 4K random benchmark where we measure the IOPS the drive can perform. Kingston’s HyperX Predator scored 97.9K IOPS at reading and 69.5K IOPS at writing. Again a very good score for an SATA-based drive.
After the conditioning of the drive, the 128K Sequential read and write tests still show great speeds with the a result that lands at 1071.95 MB/s read and 922.57 MB/s write speeds.
The 4K random benchmark scored better results after the conditioning and we’re seeing the Kingston’s HyperX Predator score 99.0K IOPS at reading and 78.4K IOPS at writing.