In my previous post I made an argument that a modern phone is only as fast as the slowest component: ability of NAND to handle 4k writes. I decided to compare two Android flagships on the opposite ends of random-write-4k benchmark spectrum: Moto Z vs Google Pixel. I wrote a little fio benchmark driver to fill all available device storage with random 4k writes, print perf stats along the way. Idea
![Why Google Pixel lags 10x more than Moto Z](https://cdn-ak-scissors.b.st-hatena.com/image/square/7f1f5eed5da31dd7261a40e98dd7a53a4d0859ba/height=288;version=1;width=512/http%3A%2F%2Ftaras.glek.net%2Fimages%2Fmoto-z-vs-pixel%2Fmoto-z-pixel-latency.png)