Mixed Read / Write Workloads
In this series of tests, we measure mixed workload performance. We start with 100% read and then add data writes to the mix until we get to 100% writes, in 10% increments. We believe this will be the next major area SSD manufactures will address after performance consistency.
Mixed Workload Bandwidth
The controller in the Intel SSD Pro 2500 has been on the market for a few years now and has a proven history of solid performance. Even as other products manage to outperform the SF-2281 in standard 4-corner benchmarks, the SF-2281 has amazed us with performance that we couldn't explain... until now.
In this chart, we see several SATA based SSDs, mostly low to midrange products with appropriate pricing for SMB and SME use. The Intel SSD Pro 2500 shows exceptional mixed workload performance, reading and writing at nearly the same time.
80% Read / 20% Write Bandwidth
In a mix of 80% reads with 20% writes (a typical workload for consumers), the Pro 2500 delivers over 400 MB/s of performance. In this test, we chose 50% entropy or 50% of the data already compressed with 50% of the data compressible by the controller.
The SSD 2500 is a business notebook / desktop SSD, so a majority of the tasks revolve around Microsoft's Office suite. The compressibility of these files were measured and published in Intel's 520 SSD document, found on Intel's website. We ran our test with 50% compression, a typical general consumer environment, but the Pro 2500 should perform a bit better in a highly compressible environment.
Mixed Workload Response Time
Here we see the response time from the same test with the same consumer SSDs. The Intel SSD Pro 2500 produced the least amount of latency in nearly all of the tests.
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