Iometer workstation and database performance
Speaking of the business end, we ran Iometer with the database and workstation profiles.
The first test runs the database pattern - 8KB transfers, 67 per cent read, 33 per cent write ratio, and 100 per cent random accesses - with a queue depth of two. A low QD intimates a very light load.
Drives are not manually TRIMmed at any stage subsequent to the initial TRIMming before running benchmarks...and three drives pull away from the rest here.
Now the load is increased to 32 outstanding I/Os (queue depth), indicating moderate load. Drives that can efficiently queue requests see a huge leap in performance. Intel's X25-M is helped along by the new 02HD firmware.
Workstation
The workstation pattern - 8KB transfers, 80 per cent read, 20 per cent write, and 80 per cent random accesses - shows the same three drives battling it out for top spot with a queue depth of two.
Increase that to 32, to simulate reasonable load, and the Crucial/Intel duo lord it over all.
