IOMeter — Sequential and random performance
IOMeter fuels much of our latest storage test suite, including our sequential and random I/O tests. These tests are run across the full capacity of the drive at two queue depths. The QD1 tests simulate a single thread, while the QD4 results emulate a more demanding desktop workload. For perspective, 87% of the requests in our old DriveBench 2.0 trace of real-world desktop activity have a queue depth of four or less. Clicking the buttons below the graphs switches between results charted at the different queue depths.
Our sequential tests use a relatively large 128KB block size.
The MP500's sequential speeds live up to our expectations for an NVMe drive, falling about in line with its Patriot cousin's. Toshiba's own OCZ RD400 coaxes quite a bit more performance out of that 15-nm MLC than other drives seem to. Nonetheless, at QD4 the MP500 rises to the roughly-1000MB/s mark that we like to see from PCIe NVMe drives.
The MP500's random response times also mimic the Hellfire's results. Read times are on the slow side, but writes are very quick.
Preliminary testing casts the MP500 in a positive light. It's almost exactly on par with Patriot's Hellfire, and we found little fault with that drive. It's great news when a 240GB drive is able to keep up with more capacious competition, too.
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