Performance in Intel IOMeter

Sequential Read & Write Patterns

IOMeter is sending a stream of read and write requests with a request queue depth of 4. The size of the requested data block is changed each minute, so that we could see the dependence of the drive’s sequential read/write speed on the size of the processed data block. This test is indicative of the maximum speed the drive can achieve.

The numeric data can be viewed in tables. We will discuss graphs and diagrams.

IOMeter: Sequential Read & Write

There is no new information here. The read speed is 30MBps with something again. The top write speed is somewhat lower at 26MBps.

Disk Response Time

In this test IOMeter is sending a stream of requests to read and write 512-byte data blocks with a request queue of 1 for 10 minutes. The total amount of requests processed by the drive is much larger than its cache buffer, so we get a sustained response time that doesn’t depend on the drive’s cache.

The read response time is somewhat too high. The HDD in this enclosure must be switched into low-noise mode.