well, OK let's take a guess at median filesize 4KB [1]. Then the 4KB cluster wastes some space only for half of the files whereas 16 KB wastes space for bigger

well, OK let's take a guess at median filesize 4KB [1]. Then the 4KB cluster wastes some space only for half of the files whereas 16 KB wastes space for bigger proportion plus they waste additional 12KB for 50% of the files. On the other hand the paper also shows how ridiculous it is to talk about the wasted space - look at figure 14, files smaller than 16KB occupy ~1% of all space. Even if we waste space 4:1 it's still ridiculously small amount of space [1] http://www.usenix.org/events/fast11/tech/full_papers/Meyer.pdf http://www.usenix.org/events/fast11/tech/full_papers/Meyer.p...