#13072: ag71xx WNDR3700 slow vlan routing
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Reporter: severn@… | Owner: developers
Type: defect | Status: reopened
Priority: normal | Milestone: Barrier Breaker 14.07
Component: kernel | Version: Attitude Adjustment 12.09 Beta
Resolution: | Keywords:
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Comment (by robnitro@…):
from 16 to 32, ok, fine, it happens to me too sometimes, and I have no
issues and get full speed... No idea what it is...
You're pinging from a client or the router? If router, do it from client
PC, because router itself under load - the shell and userspace has less
priority than routing. I can run tests get barely any ping spikes, but
router shell is so slow because cpu max out!
Now run the same test with a build that doesn't have this patch... make
sure the speeds come up the same, and see if you get the same....
So, pre patch, no ping spikes, netperfrunner.sh gets great pings too but
guess what netperf and real life got? 0.5 download, 70 upload. Pings
min 25 avg 30, max 50
Cpu use was around 25%.
No qos, same thing on speed but much higher pings min 45 avg 143 max 182
Router cpu never above 75% with qos on.
Post patch, now I get tiny spikes here and there (even with qos), but
netperfrunner.sh can do 68 mbit down/ 35 mbit upload. pings min 26 avg
29 max 40 (wowza nice)
[CPU maxed out (overclocked to 800mhz too!)]
Qos off, 50 down/86 up pings min 44 avg 122 max 174
Cpu use w/ qos off, around 50%.
It also depends on your line, I have fiber, so even with qos off, my
average ping doesn't go up much. When I had cable internet of max 10 down
0.5 up, it would have more problems with ping. Different physical systems
have different issues of bloat (and why qos helps a lot- set to 85% or 90%
of tested max speeds ul and dl).
--
Ticket URL: <https://dev.openwrt.org/ticket/13072#comment:105>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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