Dear Giudi001, I am sorry but such test
Last night, therefore, I switched from version 79 to 81.1, I checked the performance only in wifi (not via ethernet) and I found what was reported through speed test ookla.
I immediately rethroned at .79
reports just nothing to the developers of firmware. I.e. flashing new firmware, 10-15 min and back to previous version (your phrase "I immediately rethroned at .79" assumes very short time period).
After flashing new version of firmware your R7800 performs some additional actions/downloads what could influence to the speed measurement, for example: it downloads ReadyCLOUD, it downloads KWILT/Hipplay, started by default Transmission could initially eat some traffic etc. If you did not disable all of this...
I understand your wishes as end-user: to flash firmware and immediately use it. According to my knowledge (and I hope I really know that as a developer) all internal changes 79SF->80.XSF->81SF->81.1SF should NOT influence to Wi-Fi speed. I.e. when you use your iphone there is the sequence:
iphone <-> Wi-Fi LAN port <-> [R7800] <-> WAN port <-> OOKLA
And the only specific changes are in 81.1SF, i.e. changes in LAN<->WAN interface. This could be potentially problematic.
Also, OOKLA is good resource. But results of OOKLA depends on remote server randomly selected by OOKLA, current load of this server, etc. Precise tool is iperf3. So I have to use it in my testing stand. Currently this stand is connected to R7800 WAN port by cable (1Gb/sec).
And according to my tests
Client<->Wi-Fi LAN port<->[R7800]: the same speed as with 79SF
(i.e. iperf3 is running directly on R7800 and on Wi-Fi Client).
[R7800]<->WAN port<->[IPERF3 testing server]: the same speed as with 79SF
(i.e. iperf3 is running directly on R7800 and on testing server).
Client<------->[IPERF3 testing server]: the same speed as with 79SF
(i.e. iperf3 is running on Client and testing server).
I.e. I do not face any degradation of LAN<->WAN where LAN could be either cable or Wi-Fi,
So I'd expect comments, confirmation or denial from others who are using it, say, more than 1 day or so.
Thank you anyway,
Voxel.