Hi Alan, hi Richard, On Oct 23, 2015, at 19:02 , Alan Jenkins <alan.christopher.jenk...@gmail.com> wrote:
> On 23/10/2015, Richard Smith <smithb...@gmail.com> wrote: >> I have a shiny new Linksys WRT1900ACS to test. >> >> I thought it might be nice to start with some comparisons of factory >> firmware vs OpenWRT with sqm enabled. >> >> So I built and installed an openwrt trunk but the results were very >> non-impressive. Rrul test reported mulit-seconds of latency and it was >> equally non-impressive with sqm enabled or disabled. So I assumed that >> sqm in trunk on this device must not work yet. Then I wondered how well >> sqm in trunk was tested and that perhaps its broken for all devices. >> >> So I tested openwrt trunk on my Netgear 3700v2 and saw the same results. >> Then I tried openwrt cc and got the same results. >> >> Finally, I went to the reference implementation: cerowrt 3.10.50-1 on my >> 3700v2. Same results. >> >> So at this point I'm thinking there's a PEBKAC issue and I'm not really >> turning it on. >> >> Here's my enable procedure: >> >> Go the sqm tab in the GUI and set egress and ingress to 10000, set the >> interface to the upstream interface, click enable, click save and >> apply. Everything else is left at default. ie fq_codel and simple.qos. > > Your description misses at least one step from the official how-to. > May be worth checking: > > Start and Enable the SQM scripts. To do this, choose System → Startup > Click Start to start the SQM process > Click Enable to start the SQM process when the route reboots > > The how-to is here: http://wiki.openwrt.org/doc/howto/sqm The version in trunk and in CC as far as I know will automatically enable the “initab” if at least one sqm instance is set to enabled and that state is saved or saved&apply’d. > > > The original qos-scripts definitely required that step. IIRC, it's an > openwrt convention that installing a package doesn't automatically > enable its startup script. However this wasn't strictly necessary for > at least some drafts of the sqm code. I don't know if the current > version needs it or not. The current code should do that for you, but it might fail to do so. I note currenty sqm is quite terse about success or failure (one more thing on the secret todo list). Best Regards Sebastian > >> I've also tried a reboot after enabling those settings and then gone >> back to the gui to verify they were still set. >> >> My test setup: >> >> Laptop<--1000BaseT-->DUT<--1000baseT-->Server >> >> I run netperf-wrapper -H Server -l 30 rrul and look at the 'totals' or >> 'all' plot. >> >> If I run the above with this setup. >> >> Laptop<--1000baseT-->Server >> >> Then I get the expected 800-900Mbit/s with latencies < 15ms. So I don't >> think there's a problem with my test infrastructure. >> >> What am I missing and or what's the next step in figuring out whats wrong? >> >> -- >> Richard A. Smith >> _______________________________________________ >> Cerowrt-devel mailing list >> Cerowrt-devel@lists.bufferbloat.net >> https://lists.bufferbloat.net/listinfo/cerowrt-devel >> > > > -- > A: Because it messes up the order in which people normally read text. >> Q: Why is top-posting such a bad thing? >>> A: Top-posting. >>>> Q: What is the most annoying thing in e-mail? > _______________________________________________ > Cerowrt-devel mailing list > Cerowrt-devel@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/cerowrt-devel _______________________________________________ Cerowrt-devel mailing list Cerowrt-devel@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cerowrt-devel
