On 2016-03-08 09:09, Rob Philip wrote:
 > I have a question on yaffs2 performance.
 >

Answering my own question, it appears yaffs is fond of having its 
files distributed in directories.
Tests run last night with 475MB of data in 10000 files spread some 400 
directories give me
performance that is acceptable. 4 second mount times, and quick enough 
I/O to the mounted
device. And mostly I won't have this much data stored, so it's all good.