On Mon, May 11, 2015 at 09:12:56PM +0800, Ming Lei wrote: > For non-AIO case, single thread has been used for long long time, > and it was just converted to work in v4.0, which has caused performance > regression for fedora live booting already. In discussion[1], even though > submitting I/O via work concurrently can improve random IO throughput, > meantime it may hurt sequential IO performance, so maybe better to restore > to single thread behaviour.
Then justify the change based on the non-aio use case and document that in the changelog. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
