You'll need to apply some SSD specific methodology to correctly characterize their performance. Writing zeros to some SSDs will trigger special logic in their f

You'll need to apply some SSD specific methodology to correctly characterize their performance. Writing zeros to some SSDs will trigger special logic in their flash translation layer (FTL) that will prevent the writes from hitting the flash media. They simply note in the metadata that you wrote some zeros, and reading them back will also be impossibly quick. This isn't the case only on new-fangled NVMe devices...