On Mon, 2019-03-18 at 12:59 +0800, Yibo Zhao wrote: > > I understand your concern. Yes, I am using high end AP for throughput > test. I'd say 1.2 Gbps is not the worst case since we can achieve max > 1.4Gbps according to our test. AFAIK, for most throughput cases, 1min is > the minimum requirement. And I think, with more and more high end > products(even higher throughput) on the ways to the market, it is highly > possible that 30s is not a safe time before overflow. Well, 2 Gbps (goodput) would make it overflow every 16 seconds, so I'm not sure where you take the 1 minute from :-) Maybe from 1.2Gbps PHY rate. But still, the only place we expose this is debugfs, so I'm not really sure we want to spend that. Note that I'm generally pushing back on statistics right now - I really want to put some trace points or eBPF hooks in places that people can use to keep their favourite statistics, instead of trying to cover each and every use case in the stack itself. johannes