This is a simple demo showing how BFQ performs on an Hikey Board with Android.

Description:

In this demo we show, first, the serious lag and playback issues that Android suffers from, when some I/O is in progress.
Then we show that, with the same I/O in progress, the BFQ I/O scheduler greatly reduces lag, and completely eliminates playback issues.
For completeness, in case of I/O consisting of only reads, BFQ completely eliminates lag too.
We also show the throughput achieved with BFQ, as compared to NOOP, i.e., to the best performing stock I/O scheduler in terms of throughput.