Intel SSD 750 Series PCIe SSD Review: NVMe For Desktop Performance

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Iometer Benchmarking

As we've noted in previous SSD articles, though IOMeter is clearly a well-respected industry standard drive benchmark, we're not completely comfortable with it for testing SSDs. The fact of the matter is, though our actual results with IOMeter appear to scale properly, it is debatable whether or not certain access patterns, as they are presented to and measured on an SSD, actually provide a valid example of real-world performance for the average end user. That said, we do think IOMeter is a reliable gauge for relative available throughput within a given storage solution. In addition there are certain higher-end workloads you can place on a drive with IOMeter, that you can't with most other storage benchmark tools available currently.

In the following tables, we're showing two sets of access patterns; our custom Workstation pattern, with an 8K transfer size, 80% reads (20% writes) and 80% random (20% sequential) access and a 4K access pattern with a 4K transfer size, comprised of 67% reads (34% writes) and 100% random access.
Iometer Benchmarks
Storage Subsystem IO Throughput Measurement Tool

IOMeter Workstation

IOMeter Database

The first thing to note here is that Iometer is a tricky beast and the numbers are relative only to the precise test condition and workload you're running. We picked these patterns as a rough swag at common end user workloads for workstation or desktop environments, but by no means should they be compared to quoted IOPS throughput that manufacturers use to characterize their drives for the spec sheets. In our "Workstation" test pattern, which is comprised largely of random read requests (80 percent) of small 8K file sizes, we see the SSD 750 shoot way ahead of the pack, even smoking the SSD DC P3700 at either shallow 12 IO queue depths or deep 1152 IO depths (12 worker threads set to 96 IOs each).

In our "Database" access pattern we see the SSD 750 step out strong again but reach a saturation point at deep queue depths for smaller more write-intensive workloads. Here the P3700 just red lines and keeps chewing through requests, no matter how deep the queue depth was. Regardless, the SSD 750 is easily the fastest consumer-targeted SSD we've seen yet in our Iometer testing.

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