Unfortunately not. Fq_codel gives the best results. Not that surprising though, to quote the man pages: "FQ (Fair Queue) is a classless packet scheduler meant to be mostly used for locally generated traffic.", just as @moeller0 said above.
@rajsris: I don't get reboots with the 4.9 kernel but I do get stack traces and a bit of weird slowdown here and there. Most likely due to my slowpoke internet connection. @Mushoz: Interesting! Looking forward to apply the patch when it is released. The previous one was a step in the right direction.
I was going to test this yesterday, but I bricked my router by force installing sqm-scripts. Whoops. I am currently compiling an image with the patch applied and sqm-scripts built-in. Will flash my own router first to test for any major issues. Once it flashes fine I'll upload it here, so that other people can help testing. Fingers crossed!
Edit: The compilation failed. Now rerunning make with -j1 V=s to see what's wrong. Feel free to try and make your own build by using the patch yourself. The patch needs to be placed in: target/linux/ramips/patches-4.9
Edit 2: Got it to compile now. Flashed successfully as well. I am now running tests. For those who are brave enough to help testing, here is the image: https://mega.nz/#F!XRIFjSSZ!RtKpACFpNZYmxBnq-ssvIg
It has the aforementioned patch, plus Luci, SQM and uPnP added. Other than that it is a vanilla image from trunk.
Yes, this is kernel 4.9. I am very happy to report that during nearly 20 minutes of constant speedtesting with Cake or fq_codel enabled and not a single crash or stack trace. I can normally crash it within seconds and occasionally the odd minute. Looking very promising so far!
Is anyone else getting worse wifi performance with these newer builds? Not sure whether it is due to the patch, the new kernel or anything else that changed from 17.01.2 to the latest version from trunk. Or maybe I am seeing stuff that isn't there.
Many thanks John for the patch and you all for the build and test!!
The latest build works great!!!
I stressed my 100/100 fiber connection for 24 hours, high speed torrent and emule downloads/uploads, >50 dslreports tests and....the router is perfectly stable with SQM cake enabled (on the previous build I had reboots every half an hour).
Now our 860L rev B is really 100% LEDE compatible and we can enjoy his powerful dual core processor
Thanks, I know that:-). But if I understand it correctly, I cannot use that with opkg, or can I (as the packages will move - I had thta problem when I tried running LEDE trunk)?
I too am getting rock solid stability. I even think it's handling SQM a bit better as I'm getting the best speeds I've ever gotten on this router with cake.
118/12 from the ISP, and I'm getting 107/11 with Cake on!