Firmware 188.8.131.52: AS SSD Compression Benchmark
After the file transfers, we ran AS SSD's compression benchmark, which generates random test patterns over the target drive using variable levels of compression. It's a particularly useful metric for evaluating SSDs with SandForce controllers in them, since they employ compression algorithms.
The Vertex 4 centers on a Marvell controller that does not utilize compression, so its results are not impacted by the compressibility of the test files. But we do get a visualization of performance over the span of the test file.
Our first run was started after folders one, two, and three had been transferred, leaving 25% free space.
Our second run started after we rebooted twice, making no other changes. Write performance improved by simply restarting the system. However, it's still not optimal.
We fired up our third run after deleting folders one, two, and four, leaving 63% free capacity. Write speeds returned to their optimal levels.
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how much idle time is needed for the data rearrangement to take place?
And what is the authors recommendation on a Vertex4? should a user buy Vertex 4 over a Samsung/Sandforce?
Does the performance mode mean that the wear leveling is constrained to the first bit of every cell and therefore the drive wears out quicker compared to normal mode?
Do you dislike manufacturers improving their products without demanding that you pay more money for the improvements?