I've got a WDS setup with two routers running OpenWrt 18.06. One router is Linksys WRT1900ACS v1, the other is v2.
When I ssh into each router and run "top" I notice that NIC is permanently hovering between 90% to 100% but there isn't much/any real traffic going on between wireless peers. Is this normal or is my WDS setup screwed up?
I've got STP enabled on the LAN interface for both routers.
I assumed "CPU" was a field but looking again I guess it is not. So you're saying the router is 92% idle? Okay, so a follow-up question: why do I sometimes see a very high load average (e.g. 5.2) but nothing is going on in "top"?
Or put another way: if the load average is high, how do I track it down to the source?
Look at the 'io' percent: That's the number of i/o wait states and even only a few percent can really bump the load for applications that are i/op bound.