Joined: 21 Jan 2017 Posts: 1783 Location: Illinois Moderator
Posted: Fri May 08, 2020 18:23 Post subject: Q.o.S maximum throughput Wan to Lan? 250mbps?
I was helping out a dd-wrt user and their R9000.
He has a 400mbps plan and it would seem that all of the Q.o.S schedulers & disciplines max out at 250mbps throughput on the R9000.
Can anyone else with "super fast" >200mbps rates please chime in if you can achieve higher throughput, >250mbps, when QoS is on? Preferably R9000 users, or R7800...
My internet plan tops out at 240mbps so I have not observed this issue yet on my R9000.
For now we turned off his QOS, no sfe, and he easily hits 400mbps... so QOS seems to have hit the upper limit at 250mbps.
we watched TOP and bcrelay topped out at 25% and ksoftirq0 topped out around 15%...so it seems like it's not cpu related. (Though I am not convinced the IRQ load balancing is really optimized on the R9000).
This was on a linux pc too...not sure what he was running, will have to ask. _________________ FORUM RULES
Posted: Fri May 08, 2020 18:33 Post subject: Re: Q.o.S maximum throughput Wan to Lan? 250mbps?
msoengineer wrote:
Can anyone else with "super fast" >200mbps rates please chime in if you can achieve higher throughput, >250mbps, when QoS is on? Preferably R9000 users, or R7800...
I stopped using QoS because of this. My Xfinity connection tops out at 1Gb/s, and is always at least 250Mb/s. With QoS on, and I tweaked it often, I could get close to 300Mb/s on the WAN and sometimes 500Mb/s on the LAN. I watched the CPU load and it never got about about .20.
With QoS off, I can get well north of 500Mb/s now (with the heavy COVID-19 load) and near 900Mb/s on the LAN. _________________ Netgear R9000
DD-WRT v3.0-r55819 std (04/17/24)
Linux 4.9.337 #722 SMP Wed Apr 17 04:16:49 +07 2024 armv7l
Gateway, AP, DNSMasq, Clock 2000MHz
VAP on wlan1 for internet devices
IPv4 & IPv6 (Prefix Delegation)
Static Leases & DHCP
CloudFlare, no SFE, SmartDNS, no QoS
2.4GHz: Vanilla, Airtime Fairness, NG-Mixed, ACK Timing 3150, WPA2 w/AES & WPA3
5GHz: Vanilla, Airtime Fairness, AC/N Mixed, ACK Timing 3150, WPA2 w/AES & WPA3
2 Netgear AX1800 WiFi Mesh Extenders
Xfinity 1.2Gbps/35Mbps
Tested out QoS on my R9000s and was left with a negative impression due to the resultant bandwidth limitation. I think this is to be expected due to the nature of the algorithm and methods inherent in QoS since I have experienced the same on Ubiquiti and vendor hardware. _________________ Fleet Deployment of Netgear Nighthawk X10 R9000s
File: DD-WRT v3.0-r45229 std (01/01/21)
Active Settings: SFE, Multi-DHCP, Net Isolation, 10 Gbps SFP+ Module, VLANs, Wireguard Client, FreeRadius, WAN + 4G LTE fail-over, All internal radios - Disabled
PfSense - Intel Xeon, 32GB ECC RAM - Suricata, pfBlockerNG, Squid Proxy + ClamAV, VLANs w/ 802.1x Auth
Cisco WiFi 6 Access Points - Client Isolation & Radius Auth via DD-WRT R9000 w/ WPA3 Enterprise
Cisco Switches - 802.1x-VLANs & Radius Auth via DD-WRT R9000
My 400 Mbps plan delivers 479-480 with QoS off. With HTB + FQ_CODEL_FAST or PIE, I get something between 380-420. I'll run a speed test tomorrow to include some pics with it on and off for you.
Joined: 03 Jan 2010 Posts: 7568 Location: YWG, Canada
Posted: Sat May 09, 2020 17:00 Post subject:
and with cake.? ur upload limit is clearly too high.. why is at about 49mbps when ur test with no qos shows 42mbps? _________________ LATEST FIRMWARE(S)
BrainSlayer wrote:
we just do it since we do not like any restrictions enforced by stupid cocaine snorting managers
and with cake.? ur upload limit is clearly too high.. why is at about 49mbps when ur test with no qos shows 42mbps?
I'm never sure what to put for my limits since the bandwidth with Xfinity can vary. "Up to 1Gb/s" down they say and don't really say what the up is. I picked 50 because I wanted to get all available. I guess I could go to 42 since I normally see a max at just over that. Here is Cake. Same settings other than I changed the upload max to 42 _________________ Netgear R9000
DD-WRT v3.0-r55819 std (04/17/24)
Linux 4.9.337 #722 SMP Wed Apr 17 04:16:49 +07 2024 armv7l
Gateway, AP, DNSMasq, Clock 2000MHz
VAP on wlan1 for internet devices
IPv4 & IPv6 (Prefix Delegation)
Static Leases & DHCP
CloudFlare, no SFE, SmartDNS, no QoS
2.4GHz: Vanilla, Airtime Fairness, NG-Mixed, ACK Timing 3150, WPA2 w/AES & WPA3
5GHz: Vanilla, Airtime Fairness, AC/N Mixed, ACK Timing 3150, WPA2 w/AES & WPA3
2 Netgear AX1800 WiFi Mesh Extenders
Xfinity 1.2Gbps/35Mbps
No DSLreports sadly since it seems I forgot to make an account with them before they closed their test to public.
All test were made with these settings, using Tatsuya's/msoengineer QoS priority
QoS off
Turnkey speed test
56-57 MB/s
Average speed
56-57 MB/s x8 bits = 448-456 Mbps
________
QoS on HTB+FQ_CODEL_FAST
Turnkey speed test
Average speed
56 MB/s x8 bits = 448 Mbps
________
QoS on HTB+PIE
Turnkey speed test
56-57 MB/s
Average speed
56-57 MB/s x8 bits = 448-456 Mbps
________
QoS on HTB+CAKE
Turnkey speed test
Averaged out on 56MB/s, and sometimes jumped to 57MB/s
Average speed
55-57 MB/s x8 bits = 440 - 456 Mbps
________
Speaking from memory, without QoS on DSLreports, I used to get 20ms+ on upload during tests, and with QoS on it averages to be somewhere between 7-10ms, with some spikes up to 14ms with hi-res bufferbloat.(Upload only, download goes haywire regardless.)
My results were usually C with QoS off, and A with QoS on
I'm never sure what to put for my limits since the bandwidth with Xfinity can vary. "Up to 1Gb/s" down they say and don't really say what the up is. I picked 50 because I wanted to get all available. I guess I could go to 42 since I normally see a max at just over that. Here is Cake. Same settings other than I changed the upload max to 42
Going by what's said on the QoS page and your results with QoS off(41 Mbps), your upload limit should be between 34850 and 38950 kbps.
Going by what's said on the QoS page and your results with QoS off(41 Mbps), your upload limit should be between 34850 and 38950 kbps.
I was trying to not put a limit on my speeds, and I am not exactly sure what I should put for my upload limit. Tried again w/HTB&Pie. Set the limits to 850,000 down and 39900 up.
Joined: 03 Jan 2010 Posts: 7568 Location: YWG, Canada
Posted: Sat May 09, 2020 22:31 Post subject:
MLandi wrote:
tatsuya46 wrote:
and with cake.? ur upload limit is clearly too high.. why is at about 49mbps when ur test with no qos shows 42mbps?
I'm never sure what to put for my limits since the bandwidth with Xfinity can vary. "Up to 1Gb/s" down they say and don't really say what the up is. I picked 50 because I wanted to get all available. I guess I could go to 42 since I normally see a max at just over that. Here is Cake. Same settings other than I changed the upload max to 42
much better, set as high as u constantly get from the isp, then slightly under it. qos cant and never will be able to predict powerboost.
and the qos help (and many help pages) are dated, i tried updating them before but it went ignored. the % rule isnt really a rule, if u constantly get 21mbps flat from the isp at all times of the day, 20.8mbps etc is fine as an example. _________________ LATEST FIRMWARE(S)
BrainSlayer wrote:
we just do it since we do not like any restrictions enforced by stupid cocaine snorting managers
the qos help (and many help pages) are dated, i tried updating them before but it went ignored.
Not sure they were ignored; it is a very difficult subject to make 'general' suggestions too. The prioritizing recommendations were of interest to me. I wondered if the overhead of adding the higher priority was worth the processing time. Never sure about that. Right now, QoS does not seem to add value for me. I think I am better off giving up some buffer bloat for overall throughput. _________________ Netgear R9000
DD-WRT v3.0-r55819 std (04/17/24)
Linux 4.9.337 #722 SMP Wed Apr 17 04:16:49 +07 2024 armv7l
Gateway, AP, DNSMasq, Clock 2000MHz
VAP on wlan1 for internet devices
IPv4 & IPv6 (Prefix Delegation)
Static Leases & DHCP
CloudFlare, no SFE, SmartDNS, no QoS
2.4GHz: Vanilla, Airtime Fairness, NG-Mixed, ACK Timing 3150, WPA2 w/AES & WPA3
5GHz: Vanilla, Airtime Fairness, AC/N Mixed, ACK Timing 3150, WPA2 w/AES & WPA3
2 Netgear AX1800 WiFi Mesh Extenders
Xfinity 1.2Gbps/35Mbps
Joined: 08 May 2018 Posts: 14221 Location: Texas, USA
Posted: Sat May 09, 2020 23:13 Post subject:
Looks like if you share tests from dslreports, you have to save the images and attach them. Anyhow, I could go into quite a detailed explanation of how you would calculate where to set your limits, but the 85% rule of thumb usually is the end result or close enough. I've relented into steering clear of certain discussions, and this is one of them. _________________ "Life is but a fleeting moment, a vapor that vanishes quickly; All is vanity"
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