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Why is my Anti-Bufferbloat not working?


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#21
Netduma Fraser

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If you do the same tests but with PingPlotter by following this guide and saturating your connection you should see a difference with Anti-Bufferbloat enabled: http://support.netdu...your-connection

 

Can you try that please and let us know.


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#22
lilstone87

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Delete


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#23
Netduma Fraser

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It doesn't make any sense why it is performing like that, did you have Traffic Prioritization on at the time? Can you do a 1 on 1 during the day on Thursday before 2pm BST? 


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#24
lilstone87

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It doesn't make any sense why it is performing like that, did you have Traffic Prioritization on at the time? Can you do a 1 on 1 during the day on Thursday before 2pm BST? 

 

Fraser,

 

I will get back to you as soon as I can. But until then, I plan to dig into this more from my end as well. This has me very curious as to why it's happening. dslreports speedtest bufferbloat part of the test depends on result's it collects while stressing your bandwidth. Oddly for the upload side, as you have seen... The result's are worst while Anti-BB is enabled. Which doesn't make a whole lot of sense, as I'm only using 25% of my upload with it enabled, vs 100% without it.

 

I'm very curious why its shows latency average higher, and with higher spiking. With Anti-BB enabled, is the router cpu strictly doing all the processing? I know often times certain features being enabled, disables other stuff, which normally keeps the cpu load down.


4442561987.png


#25
Netduma Fraser

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Okay let me know, something must be preventing it working correctly, thats why I'd like to take a look. It is hardware accelerated so shouldn't be an issue there.


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#26
vShikko

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[quote name="lilstone87" post="177898" timestamp="1523375979"]

Well I have had the XR500 for well over a month now, and I have waited till now to mention it. As I wanted to test over a period of time, and see what result's I come up with.

I have noticed when using the dslreports speedtest, my result's are better without "Anti-Bufferbloat", then with it enabled. Which honestly is a bit backwards, and should be the opposite. I have run many of tests the past month, or so, and everytime my bufferbloat results are better when I leave my speeds uncapped. I plan to post the results of two recent tests in this post. One without it, and the other with my speed's capped to 25% of my overall total bandwidth. As you will see bufferbloat isn't exactly improving "bufferbloat" when enabled.

I actually recently been paying close attention to the test being run, and with Anti-bufferbloat enabled. During the upload side of the testing, the latency average increases, spikes a lot more often, and higher. Which when you think about it.. With me having my limit's set to 25%, I can only use a max of 7.5-7.75mbps of upload bandwidth. I actually get 30-32mbps by my provider. So overall, latency, and ping spikes should stay very low, and consistent. Currently that isn't the case, and I feel whatever the issue is, it's router side.

Because testing without it, latency, and spikes, are much less. This is while maxing out my upload at 30-32mbps, which would be the time for my latency to be at its highest, and spike the most. However that isn't the case. So at this point in time, I feel using "Anti-Bufferbloat" is a waste, and isn't doing exactly what it's designed to do.


Why are you throttling your bandwidth to 25%?
You're making your router queue up more packets than it has to & creating a bottleneck.

#27
Find_the_Door

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Fraser,

 

I will get back to you as soon as I can. But until then, I plan to dig into this more from my end as well. This has me very curious as to why it's happening. dslreports speedtest bufferbloat part of the test depends on result's it collects while stressing your bandwidth. Oddly for the upload side, as you have seen... The result's are worst while Anti-BB is enabled. Which doesn't make a whole lot of sense, as I'm only using 25% of my upload with it enabled, vs 100% without it.

 

I'm very curious why its shows latency average higher, and with higher spiking. With Anti-BB enabled, is the router cpu strictly doing all the processing? I know often times certain features being enabled, disables other stuff, which normally keeps the cpu load down.

 

Did you ever find a solution here?  My results are very similar to yours.



#28
Netduma Fraser

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Did you ever find a solution here?  My results are very similar to yours.

 

I'll hopefully be doing a 1 on 1 this week.

 

Have you done the same tests? Are ALL devices connected to the XR500? Otherwise QoS won't work correctly.


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#29
Find_the_Door

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I'll hopefully be doing a 1 on 1 this week.

Have you done the same tests? Are ALL devices connected to the XR500? Otherwise QoS won't work correctly.


Yes they're all connected. I have to significantly neuter my connection to get decent results. I have Gigabit with 42 up.

Final numbers are around 250 down and 29 up to get it working right somewhat. I notice under load my ping time is actually better? Is there a reason behind this? Is there a way I can enforce that better ping time consistently?

#30
Netduma Fraser

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That's probably to do with your connection speed. So under load with Anti-Bufferbloat active you get a better ping? If so just keep it like that. Otherwise that doesn't make any sense why it would be lower


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#31
Find_the_Door

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That's probably to do with your connection speed. So under load with Anti-Bufferbloat active you get a better ping? If so just keep it like that. Otherwise that doesn't make any sense why it would be lower


Yeah I'm definitely gonna keep it that way for sure. For whatever reason it does that when I watch the in-game network monitor on Rainbow Six.

#32
Netduma Fraser

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Yeah I'm definitely gonna keep it that way for sure. For whatever reason it does that when I watch the in-game network monitor on Rainbow Six.

 

Well that is great news! If you get your best results at that percentage thats great, I realise it's a big drop in speed but everyones connection is different. Glad you found what works for you!


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#33
Find_the_Door

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Well that is great news! If you get your best results at that percentage thats great, I realise it's a big drop in speed but everyones connection is different. Glad you found what works for you!


It works for now for sure - I'll continue to monitor it going forward. I would like an option to disable the deep packet filtering if possible. If you had to provide a specialized forum only firmware to do so that's fine, or if you needed to hid the option away in the GUI whatever it takes.

I'd say it'd save you guys a lot of time and energy as far as devoting discussion's to this issue with regards to speed test results. More importantly it'd make optimization that much easier.

Just curious what queing discipline does Netduma OS use? How about the R1? If it's FQ_Codel is there an option to control packet overhead?


Thank you

#34
Netduma Fraser

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The only option to disable that at the moment is when you disable QoS completely. We may in future offer an option to disable DPI but not for awhile. 

 

We use our own as far as I'm aware, no options for that either. We have to be careful implementing advanced features like that.


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#35
Find_the_Door

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The only option to disable that at the moment is when you disable QoS completely. We may in future offer an option to disable DPI but not for awhile.

We use our own as far as I'm aware, no options for that either. We have to be careful implementing advanced features like that.


Roger that - any specific option for overhead? I seen something called "goodput" does that have any particular effect on the experience?

Also when should we expect our next update?

Thank you

#36
Netduma Jack

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Roger that - any specific option for overhead? I seen something called "goodput" does that have any particular effect on the experience?

Also when should we expect our next update?

Thank you

 

Goodput should only be disabled in very specific circumstances and I don't believe it would cause any performance changes either way. The next update should be fairly soon but we can't give a date yet - stay tuned on this forum and also on our social media channels for news regarding that :)


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#37
Netduma Fraser

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Roger that - any specific option for overhead? I seen something called "goodput" does that have any particular effect on the experience?

Also when should we expect our next update?

Thank you

 

Goodput accounts for packet headers so that speedtest gives a more accurate result


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#38
xlr8r

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managed to get my first A+ Bufferbloat result on DSLREPORTS

 

32082310.png  bufferbloat.jpg

 

My Normal DL is 64Mbps , UL 12Mbps (while QoS is turned Off)

 

For this test, I had QoS turned on and I set my sliders to 75 DL and 73 UL (after testing many, many  times on DSLReports)

 

now getting an A+ Bufferfloat


wwii.jpg

Rockets all gone... Mnnnn...Your fooling no-one Kim !!!


#39
Find_the_Door

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managed to get my first A+ Bufferbloat result on DSLREPORTS

32082310.pngbufferbloat.jpg

My Normal DL is 64Mbps , UL 12Mbps (while QoS is turned Off)

I set my sliders to 75 DL and 73 UL (after testing many, many times on DSLReports)

now getting an A+ Bufferfloat


Did this suddenly happen or did you further tinker with settings to arrive at this result?

#40
xlr8r

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Did this suddenly happen or did you further tinker with settings to arrive at this result?

 

Spent all day yesterday doing this..... its a tad inconsistent , but at least I managed to achieve an A+  (maybe it was just a fluke...?)  :o

Firstly, (with QoS off) I obtained my accurate DL and UL speeds first by setting my Anti-bufferfloat internet speeds to way above what i should be getting. Then ran a speedtest to get latest speeds.

Entered those back into the antibufferfloat internet speed settings on XR500, and saved. Turned QoS back on for testing.

I then tinkered ALOT with dsl reports (morning / noon/ night) to obtain what the best settings where (for me).

I tested all the way down to 40% to 100% on both sliders , and throughout the day, tested many times on various slider values.

 

Ultimately, the best values for me, were 75 DL and 73 UL on the sliders , with QoS enabled (always - just for testing purposes)

Credits to SIMJC74 who has a nice video of how to do the Bufferbloat testing..... https://www.youtube....h?v=p41FUBTNRHM

 

Speedtest 1 here (http://www.speedtest.net) (internet speed)

Speedtest 2 here  (https://sourceforge.net/speedtest/)  (inlcudes Latency/Ping, Jitter, Download Speed, Upload Speed, Buffer Bloat, and Packet Loss)

DSLReports here (http://www.dslreports.com/speedtest) (includes bufferfloat tests)


wwii.jpg

Rockets all gone... Mnnnn...Your fooling no-one Kim !!!





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