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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.

The Arc 100 performs very well in what's arguably our most important benchmark. Its mean read service time is good enough to place it in the middle of the pack, and its mean write service time is the third-quickest overall.

Most of the SSDs are closely matched in the read results, so I wouldn't pay too much attention to the fact that the Arc 100 comes out ahead of its MX100 rival. The Arc's mean write service time is 4X quicker than the MX100's, though. Its write service times are also much more consistent. The OCZ drive's standard deviation for writes, which describes the degree of variance, is less than one-seventh that of the Crucial alternative.

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.

Again, the Arc 100 lays a beating on the equivalent MX100. The OCZ SSD has about a third fewer extremely long read service times. It also logs just 24 sluggish writes, compared to over 46,000 for the MX100 256GB.

OCZ often boasts about its SSDs being tuned for consistent performance over the long haul, and our DriveBench results show that the swagger is warranted. The Arc 100 beats a lot of much pricier alternatives.