Sandforce Life Time Throttling

[Ao1]

Back to the 520.

This is a quick rundown to hone onto block sizes and QD’s that result in either good or bad WA. The results are a bit rough and ready due to the small amount of writes for each category and the limitation of 1GiB increments for NAND writes, so results could vary, especially for the small blocks at QD1.
A pattern does seem to immerge though

• 0 fill appears equally good regardless of block size or QD, except 1K
• Incompressible is actually quite impressive, except 1K

So it seems that random writes of 4K or less, regardless of compressibility, have (to a varying degree) a disproportionate impact on WA, which would explain why WA was coming out so high when just monitoring typical OS and app workloads.