You might be surprised about what does some random writes. Imagine you have a bunch of services which don&#x27;t directly use the disk, but all log to some rotating log files. Or maybe every once in a while, something needs to fsync a random bunch of config files.<p>Yeah that&#x27;s not so hard, but look again at just how slow random writes can be. An improvement in that (by far worst) statistic is often much more significant than a much larger improvement in linear read or write.