Yes, I added 350000 for downlink as I have a 400 Mbps connection. For uplink, I added 18000 for 20 Mbps connection.
I tried with just the QOS, same result.
Then, I tried SQM QOS (cake/pieceofcake/none) and all the time I get a D or a C for Bufferbloat. Not sure what is missing as all the other settings are pretty basic. Wlan0 is set to 149 and wlan1 is set at channel 11.
try these with save & apply:
- make sure 5g wifi is ac 80mhz
- disable qos
- set sqm cake/pieceofcake/link layer to ethernet vdsl2 44 bytes
- add to startup:
echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo performance > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
echo 2 > /proc/irq/31/smp_affinity
- reboot
test and report the results
Thank you for the info and appreciate it.
Yes, wlan0 (5 GHz) is set to Mode AC/Channel 149/Width is 80 MHz and WPA2-PSK/Force CCMP(AES).
wlan1 (2.4 GHz) is set to Mode N/Channel 11/Width is 40 MHz.
QOS is disabled.
SQM QoS is set for the interface eth0.2 (wan,wan6). QD is cake/piece_of_cake.qos. Link layer is set to Ethernet VDSL2 and 44 bytes for overhead.
@Kong mentioned above that "Maybe wrong interface choosen? E.g. for VDSL pppoe-wan needs to be selected." I am not sure where do I select it? In SQM QOS, it is eth0.2 as that is my wan interface. _________________ Netgear R7800 [DD-WRT]; ASUS RT-87U [DD-WRT]; ASUS RT-AC68U [FreshTomato]
Last edited by RainGater on Wed Aug 07, 2019 13:16; edited 2 times in total
Thank you Kong! I want to share a few tweaks and settings for SQM QoS that I found to be useful. I'm using the performance governor + IRQ init script. I also disabled nlbwmon on startup (don't know if this makes any difference).
I am getting mindblowing results with fiber 300/150Mbit/s connection and SQM QoS. See here. My connection is pretty stable, so I've set ingress and egress shaping to 95% of link: 285000/142500 kbit/s (set lower if your ISP doesn't deliver constant bandwidth). Interface chosen is pppoe-wan, cake queue discipline and piece-of-cake queue setup script.
Now, the Link Layer Adaptation screen has Advanced options which I found made quite a difference. I've set Minimal packet size (MPU) to 64 and linklayer adaptation mechanism to cake. About link layer itself: I've set it to Ethernet with overhead (VDSL2) with a per packet overhead of 42 – which I calculated for my network, as it has 3 VLANs. More info here.
IF anyone has an ATM connection I stronly suggest to study and use the ATM overhead detector + Matlab to get a precise overhead number. Unfortunately, VDSL users need to make a guess or call the ISP.
share your dslreport speed test with both qos and sqm off thanks
With both QOS and SQM QOS off, this is the result: http://www.dslreports.com/speedtest/52824536 _________________ Netgear R7800 [DD-WRT]; ASUS RT-87U [DD-WRT]; ASUS RT-AC68U [FreshTomato]
@Kong mentioned that I need to set it to pppoe-wan but not sure how to set it as it doesn't show up in the wan interface (in network page). _________________ Netgear R7800 [DD-WRT]; ASUS RT-87U [DD-WRT]; ASUS RT-AC68U [FreshTomato]
@Kong mentioned that I need to set it to pppoe-wan but not sure how to set it as it doesn't show up in the wan interface (in network page).
It only shows up as pppoe-wan, if you setup pppoe on the router and use modem in bridge mode, if your modem establishes pppoe connection, then it's up to the modem to fight bufferbloat. In this case you would not use vdsl as link layer setting, but none, since you have a normal ethernet connection to the modem. _________________ KONG PB's: http://www.desipro.de/ddwrt/
KONG Info: http://tips.desipro.de/
It only shows up as pppoe-wan, if you setup pppoe on the router and use modem in bridge mode, if your modem establishes pppoe connection, then it's up to the modem to fight bufferbloat. In this case you would not use vdsl as link layer setting, but none, since you have a normal ethernet connection to the modem.
Thank you for enlightening me on this issue.
So, there is nothing that can be done to reduce the bufferbloat in my case?
After I set it to none for link layer setting, I got a B for bufferbloat - http://www.dslreports.com/speedtest/52833218 _________________ Netgear R7800 [DD-WRT]; ASUS RT-87U [DD-WRT]; ASUS RT-AC68U [FreshTomato]
You need to check if it's possible on your specific modem, and look for the procedure in order to change it. Then do no. 2.
The username and password will be on its settings page.
I don't think my ISP has PPPoE setup. I believe it is for DSL and ours is DHCP to get the IP automatically from ISP.
I like OpenWRT's modular interface and the features as it has tons and tons of it. I like to play with Linux and lots of configurations can be done thru' uci. I love it.
I guess I have to suck up bufferbloat as it's worse than the DD-WRT setup for me. _________________ Netgear R7800 [DD-WRT]; ASUS RT-87U [DD-WRT]; ASUS RT-AC68U [FreshTomato]
