Posted: Sat Nov 20, 2021 1:19 Post subject: There is a speed issue with builds starting early this year
I noticed a small speed slowdown this year when using my newsreader but I didn't think much of it I just thought my news reader had a update so it's calculating my speed differently. I just got a gigabit connection and now I am sure it's dd-wrt. I am losing about 100 mbps up and 200 down I reinstalled the netgear stock firmware and it is much closer to what I should be getting. I went back to a build from the end of 2020 and speeds are better but still not as good with the stock firmware.
I remember a while back I believe it was in 2016 I had a similar speed problem and it took Several months before it was corrected. Anyone else having speed issues maybe there is some new feature that I need to change any help would be appreciated.
Joined: 08 May 2018 Posts: 14221 Location: Texas, USA
Posted: Sat Nov 20, 2021 17:28 Post subject:
It would help the community at large to know which router this is on, so this thread could be directed properly. If you have a Broadcom device, then there have been recent changes to (re-)add Cut Through Forwarding engine and Flow Acceleration, which work much better than Shortcut Forwarding Engine. If you own an Atheros, all you have is SFE (AFAIK) and routers such as the R7800 do not fully utilize the NSS cores in DD-WRT. If you have a Marvell, all you have is SFE, no native acceleration support that I am aware of; same for MediaTek/Ralink. _________________ "Life is but a fleeting moment, a vapor that vanishes quickly; All is vanity"
Contribute To DD-WRT Pogo - A minimal level of ability is expected and needed... DD-WRT Releases 2023 (PolitePol)
DD-WRT Releases 2023 (RSS Everything)
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Linux User #377467 counter.li.org / linuxcounter.net
It would help the community at large to know which router this is on, so this thread could be directed properly. If you have a Broadcom device, then there have been recent changes to (re-)add Cut Through Forwarding engine and Flow Acceleration, which work much better than Shortcut Forwarding Engine. If you own an Atheros, all you have is SFE (AFAIK) and routers such as the R7800 do not fully utilize the NSS cores in DD-WRT. If you have a Marvell, all you have is SFE, no native acceleration support that I am aware of; same for MediaTek/Ralink.
It's a netgear r7000 When I first got connected my speeds were exactly the same up and down 340 mbps I read on this forum to enable sfe. That increased my speed up to what I have now!
Joined: 08 May 2018 Posts: 14221 Location: Texas, USA
Posted: Sun Nov 21, 2021 1:59 Post subject:
Using CTF as "Shortcut Forwarding Engine" would probably help a little more; I don't know if the R7000 supports Flow Acceleration or not. You can always try CTF+FA and see. _________________ "Life is but a fleeting moment, a vapor that vanishes quickly; All is vanity"
Contribute To DD-WRT Pogo - A minimal level of ability is expected and needed... DD-WRT Releases 2023 (PolitePol)
DD-WRT Releases 2023 (RSS Everything)
----------------------
Linux User #377467 counter.li.org / linuxcounter.net
this concerns about 15 routers that also work with dd-wrt
unfortunately, this is generally a very neglected topic
if you follow the individual threads so probably neither NSS nor HW-NAT works with the current OpenWRT Master branch.
together with the other limitations we are back to the topic "we need faster routers / CPUs".
Joined: 26 Mar 2013 Posts: 1857 Location: Hung Hom, Hong Kong
Posted: Sun Nov 21, 2021 16:18 Post subject: Re: There is a speed issue with builds starting early this y
rootervsrouter wrote:
I noticed a small speed slowdown this year when using my newsreader but I didn't think much of it I just thought my news reader had a update so it's calculating my speed differently. I just got a gigabit connection and now I am sure it's dd-wrt. I am losing about 100 mbps up and 200 down I reinstalled the netgear stock firmware and it is much closer to what I should be getting. I went back to a build from the end of 2020 and speeds are better but still not as good with the stock firmware.
Are you doing lots of bit-torrent download & upload? Are you using VPN? Is it just the DNS? Are you talking about WiFi or wired connections?
_________________ Router: Asus RT-N18U (rev. A1)
Drink, Blink, Stretch! Live long and prosper! May the Force and farces be with you!
Posted: Mon Nov 22, 2021 1:29 Post subject: Re: There is a speed issue with builds starting early this y
mwchang wrote:
rootervsrouter wrote:
I noticed a small speed slowdown this year when using my newsreader but I didn't think much of it I just thought my news reader had a update so it's calculating my speed differently. I just got a gigabit connection and now I am sure it's dd-wrt. I am losing about 100 mbps up and 200 down I reinstalled the netgear stock firmware and it is much closer to what I should be getting. I went back to a build from the end of 2020 and speeds are better but still not as good with the stock firmware.
Are you doing lots of bit-torrent download & upload? Are you using VPN? Is it just the DNS? Are you talking about WiFi or wired connections?
Yes I am torrenting and using newsgroups on a wired & wifi connection I have a separate network using a vpn that is why I don't want to stop using dd-wrt. I expect a slowdown when using wifi what I am concerned about is the ethernet connection.
