If you only append you do not get the effect that you want, you actually need to send the writes as a large consecutive write for the SSD to do what they want i

If you only append you do not get the effect that you want, you actually need to send the writes as a large consecutive write for the SSD to do what they want in this paper. If you send many smaller writes the SSD will for sure split them to different nand dies to get the maximum write parallelization. They will be grouped for the maximum write efficiency which will not necessarily be the same as erase efficiency.