Betwixt benchmarking rigs
We're in the midst of replacing our old storage test rigs with new machines—and an updated suite of benchmarks. That transition, coupled with timing for this review, limited the testing we were able to do. We'll have a more comprehensive look at the Vector 180's performance in a future article. In the meantime, we've run the 240GB and 960GB flavors through arguably the most important test from our old suite, DriveBench 2.0, plus a handful of the new tests we'll be using moving forward.
TR DriveBench 2.0 — Disk-intensive multitasking
DriveBench 2.0 is a trace-based test comprised of nearly two weeks of typical desktop activity peppered with intense multitasking loads. More details on are available on this page of our last major SSD round-up.
We measure DriveBench performance by analyzing service times—the amount of time it takes drives to complete I/O requests. Those results are split into reads and writes.
To no one's surprise, the Vector 180 behaves much like OCZ's other Barefoot-based SSDs. The 240GB and 960GB versions perform similarly—and very well overall. They have the lowest mean write service times we've ever measured, and they're not exactly slouches with reads, either.
All the SSDs execute the vast majority of DriveBench requests in one millisecond or less—too little time for end users to perceive. We can also sort out the number of service times longer than 100 milliseconds, which is far more interesting data. These extremely long service times make up only a fraction of the overall total, but they're much more likely to be noticeable.
Through nearly two weeks of simulated disk activity, the Vector 180s log just 11 writes over 100 milliseconds. That's an astoundingly low total considering the sheer volume of I/O involved.
Depending on how one looks at the results, the picture is either better or worse with reads. Although the Vector 180s both post over 900 extremely long service times, that's fewer than for any other SSD apart from the Vector 150, which is in the same league. All of OCZ's Barefoot drives crunch through DriveBench 2.0 with relative ease.
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