general speed on older router about half of stock firmware

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kernel-panic69
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PostPosted: Wed Sep 22, 2021 19:41    Post subject: Reply with quote
Ditto. Next?
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tgvrfcedx
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PostPosted: Thu Sep 23, 2021 1:53    Post subject: Reply with quote
this?

Router: DLink Dir-300
Firmware: DD-WRT v3.0-r32170 (06/01/17)
Kernel: 3.2.88 #123933 Thu Jun 1 08:36:52 CEST 2017 mips DD-WRT
Status: Not OK
Reset: No
Errors: WebIF broken

Edit: seems to be a problem since a long time (on DIR-300 rev A) - I tried various 2017 and late 2016 builds with no avail.
Now back to r29837 from 06.06.2016 and WebIF is working fine.

ho1Aetoo wrote:
And I already knew this informations.

https://forum.dd-wrt.com/phpBB2/viewtopic.php?p=1083390#1083390

Cool
kernel-panic69
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PostPosted: Thu Sep 23, 2021 2:15    Post subject: Reply with quote
So the webUI on the current release isn't working correctly on this device? How exactly were you testing the webUI functionality? Standalone browser separate from your Internet surfing? Private browsing mode? No extensions loaded?
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tgvrfcedx
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PostPosted: Thu Sep 23, 2021 3:02    Post subject: Reply with quote
where did i say that???

kernel-panic69 wrote:
So the webUI on the current release isn't working correctly on this device? How exactly were you testing the webUI functionality? Standalone browser separate from your Internet surfing? Private browsing mode? No extensions loaded?
tgvrfcedx
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Joined: 11 Sep 2021
Posts: 133

PostPosted: Thu Sep 23, 2021 3:14    Post subject: Reply with quote
flashed
r29974
and
r29437

both flashed ok, they gave wan address but there is no internet and iperf3 wont run device to device

tgvrfcedx wrote:
this?

Router: DLink Dir-300
Firmware: DD-WRT v3.0-r32170 (06/01/17)
Kernel: 3.2.88 #123933 Thu Jun 1 08:36:52 CEST 2017 mips DD-WRT
Status: Not OK
Reset: No
Errors: WebIF broken

Edit: seems to be a problem since a long time (on DIR-300 rev A) - I tried various 2017 and late 2016 builds with no avail.
Now back to r29837 from 06.06.2016 and WebIF is working fine.

ho1Aetoo wrote:
And I already knew this informations.

https://forum.dd-wrt.com/phpBB2/viewtopic.php?p=1083390#1083390

Cool
Gameman Advanced Kid
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Joined: 18 Nov 2012
Posts: 1158

PostPosted: Thu Sep 23, 2021 3:16    Post subject: Reply with quote
kernel-panic69 wrote:
So the webUI on the current release isn't working correctly on this device? How exactly were you testing the webUI functionality? Standalone browser separate from your Internet surfing? Private browsing mode? No extensions loaded?


He is wondering why his router is not doing "50/20" but is instead doing 13/13. Internet on this router is slower with dd-wrt running on it.

-also-

@tgvrfcedx

Let me give you an example of my own on how to post network configuration

Internet Gateway (50/30) > Mikrotik 1036 router

Mikroktik 1036

Port 1 is WAN
Port 2 is Main computer
Port 3 is secondary computer
port 4 is Test bed
port 5 is its own separate network for testing a POE switch ATM
Port 6 is NASAP (WRT32x)

WRT32x is setup as a NAS server and AP.

Router Name: NASAP
Router Model: Linksys WRT32X
Firmware Version: DD-WRT v3.0-r47381 std (09/08/21)
Kernel Version: Linux 4.9.282 #2845 SMP Wed Sep 8 05:15:52 +07 2021 armv7l

The routers "WAN Connection Type" is disabled making this a wired bridge with wireless enabled.

NAS is an 8tb WD Red. NAS features running are samba, miniDLNA, and Transmission bit torrent.

-HERES ANOTHER EXAMPLE-

Arris SB8200 Cable Modem (300/30) > WRT1900acv1 (Main Router).

WRT1900acv1
(this is where you insert info about your routers dd-wrt build here)

Port 1 is desktop
Port 2 is network printer (Canon TS9120)
port 3 is HLDS server
Port 4 is gaming desktop

2.4ghz and 5ghz wifi channels are both on auto.

2.4ghz Channel width is 20/40mhz

5ghz Channel width is 20/40/80mhz.

Port forward is setup for 27010 to 27030 for HLDS game server.

we mostly use cellphones and laptops and Internet is working without any issues what so ever.

Thats how you post your network configuration. Take it as an example and make your own version of it.

-curious-

What is your goal with these routers exactly? I already read that these are on a "test bed" but why?

AFAIK, dd-wrt is a small team of people working on these routers together. Usually the latest they can support because they are newer and, just my opinion here, I do not think many people would be using routers as old as the ones you are testing with right now.

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barryware wrote:
It takes a "community" to raise a router..


Internet Connection 1
Some Techicolor modem > Linksys WRT3200ACM

Internet connection 2
Ubiquiti Powerbeam Gen 2 > Netgear R9000

Official (but not really) dd-wrt General Discussion element/matrix chat

https://matrix.to/#/#dd-wrt-private-non-offical:matrix.org
tgvrfcedx
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Joined: 11 Sep 2021
Posts: 133

PostPosted: Thu Sep 23, 2021 3:39    Post subject: Reply with quote
while it might be a factor i dont think its the root issue

when i say 80-90% i am talking MAX! during an i perf run.
most of the other test see around 45-75 sirq, with low cpu load.

also the stock dlink can do more then double the speed 55 vs 20 wired, i doubt ddwrt is that much of a hog.

if there is any other tests i can run to confim let me know



ho1Aetoo wrote:
Quote:
sirq gets into the 80-90 %


there you have your high cpu load, that's why we wanted you to post detailed information all the time, because we might see more than you do

fact is that the router has an extremely slow processor (someone in the openwrt forum wrote the slowest router processor he has ever seen)

i also wrote you that 3rd party firmware is always slower than the stock firmware

the stock firmware used mostly proprietary components and is highly modified

in addition probably an older kernel and newer kernels always have the habit that they are bigger and slower

Quote:
I think that's a problem with the ar2313 network driver. It just seems to have terrible speeds when receiving packets. If you look at "top" while doing a large transfer, you will get near 100% in software interrupts. I cannot get more than about 20 Mbit/s if it goes through software.
tgvrfcedx
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Joined: 11 Sep 2021
Posts: 133

PostPosted: Thu Sep 23, 2021 3:49    Post subject: Reply with quote
Quote:
What is your goal with these routers exactly? I already read that these are on a "test bed" but why?

AFAIK, dd-wrt is a small team of people working on these routers together. Usually the latest they can support because they are newer and, just my opinion here, I do not think many people would be using routers as old as the ones you are testing with right now.


i have used these as they are cheap for long range link with directional antenna. outdoor and easy to swap out. working good with stock dlink, but have spares and wanted to try ddwrt as there are more options and better monitoring.

and now its just more about finding and confirming the speed issue and best stable ddwrt firmware to use. have already invested so much time testing ddwrt and would like to solve it
Gameman Advanced Kid
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Posts: 1158

PostPosted: Thu Sep 23, 2021 3:59    Post subject: Reply with quote
tgvrfcedx wrote:
i have used these as they are cheap for long range link with directional antenna. outdoor and easy to swap out. working good with stock dlink, but have spares and wanted to try ddwrt as there are more options and better monitoring.

and now its just more about finding and confirming the speed issue and best stable ddwrt firmware to use. have already invested so much time and would like to solve it


So then you are using these routers for something specific then.

do you have a large property with a guest house?

Are you afraid of changing to newer hardware? or you just cannot afford anything atm?

_________________
For people who are new to the dd-wrt forums >> http://www.catb.org/~esr/faqs/smart-questions.html#rtfm

barryware wrote:
It takes a "community" to raise a router..


Internet Connection 1
Some Techicolor modem > Linksys WRT3200ACM

Internet connection 2
Ubiquiti Powerbeam Gen 2 > Netgear R9000

Official (but not really) dd-wrt General Discussion element/matrix chat

https://matrix.to/#/#dd-wrt-private-non-offical:matrix.org
tgvrfcedx
DD-WRT User


Joined: 11 Sep 2021
Posts: 133

PostPosted: Thu Sep 23, 2021 5:48    Post subject: Reply with quote
what i am using the routers for has nothing to do with ddwrt.

i already explained i have spare routers i wanted to get ddwrt working on to play with and am now trying to troubleshoot this speed bug. AGAIN... nothing to do with the normal use right now.


Gameman Advanced Kid wrote:
tgvrfcedx wrote:
i have used these as they are cheap for long range link with directional antenna. outdoor and easy to swap out. working good with stock dlink, but have spares and wanted to try ddwrt as there are more options and better monitoring.

and now its just more about finding and confirming the speed issue and best stable ddwrt firmware to use. have already invested so much time and would like to solve it


So then you are using these routers for something specific then.

do you have a large property with a guest house?

Are you afraid of changing to newer hardware? or you just cannot afford anything atm?
kernel-panic69
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Joined: 08 May 2018
Posts: 14125
Location: Texas, USA

PostPosted: Thu Sep 23, 2021 12:05    Post subject: Reply with quote
It is already a known given that DD-WRT does not have the same throughput as stock firmware because it is not using the same exact source code as stock firmware. I'm pretty sure this was alluded to at least once in one of your threads. Could the current drivers be askew in DD-WRT? Well, some are quite "customized", so anything is possible. Some hardware just balks at this.
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tgvrfcedx
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PostPosted: Thu Sep 23, 2021 12:39    Post subject: Reply with quote
maybe, but no one is sure only assumptions.
i think half as slow as stock is not supporting that.

i am willing to test more if i can get advise on what to test, this will surly also be relevant for other models.

i am thinking to disable or enable functions. if its a load issue or mod drivers or whatever. forget wifi. lets stick to wired lan speed 55mbit is the bench mark of stock. 25 is the best with ddwrt.


kernel-panic69 wrote:
It is already a known given that DD-WRT does not have the same throughput as stock firmware because it is not using the same exact source code as stock firmware. I'm pretty sure this was alluded to at least once in one of your threads. Could the current drivers be askew in DD-WRT? Well, some are quite "customized", so anything is possible. Some hardware just balks at this.
kernel-panic69
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Location: Texas, USA

PostPosted: Thu Sep 23, 2021 13:16    Post subject: Reply with quote
Linux 2.4 vs Linux 3.2. You cannot compile the same drivers against both with the same results. And if there are any proprietary binary blobs involved, you cannot use them with a different kernel or compiler version. I would literally have to take the stock firmware tarball and compare it against the dd-wrt source tree. There are so many shared functions and bits of shared code across the entire spectrum here, there is literally no easy answer. Now, I don't think we have asked, but did you test with SFE enabled or disabled? Was there any QoS testing involved?
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Last edited by kernel-panic69 on Thu Sep 23, 2021 13:19; edited 1 time in total
ho1Aetoo
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PostPosted: Thu Sep 23, 2021 13:18    Post subject: Reply with quote
this seems to be a kernel / driver problem as said before
actually probably the network driver for the SoC

if at 25Mbit the software interrupts go up to 100% then there is the bottleneck.

And I say, unlikely that it will be fixed after ~20 years for a device that is more or less EOL
kernel-panic69
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Location: Texas, USA

PostPosted: Thu Sep 23, 2021 13:21    Post subject: Reply with quote
True, but I just back-tracked to see that SFE is included in this device's config in DD-WRT and it would be interesting to see what the impact of enabling vs. disabling it would be. There are probably plenty of issues with hardware drivers that have not been addressed - mostly IRT DD-WRT in general. I have noticed that some of the stock firmware code was different IRT DD-WRT, but not IRT upstream kernel commits. But again, we're talking about a device whose stock firmware includes a Linux 2.4 kernel vs a custom firmware that includes a patched Linux 3.2 kernel. I can almost guarantee you that the hardware drivers have code differences, most likely.
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Last edited by kernel-panic69 on Thu Sep 23, 2021 13:43; edited 1 time in total
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