Joined: 04 Dec 2007 Posts: 1263 Location: Murrysville, PA
Posted: Wed Oct 01, 2025 13:41 Post subject: Speed on a R7800
I'm curious about the speed possible on a R7800. I (supposedly) have a 1Gb download internet connection. Speedtest gives me about 540Mb. While the test is running, the load on the R7800 hits about 0.40. If I understand properly, with a 2 CPU processor, this value means the CPU is working at about 20%. Is a R7800 able to handle 1Gb? _________________ Linksys MX8500 DD-WRT v3.0-r62966 std (12/06/25)
Linux 6.6.118-rt29 #4715 SMP Sat Dec 6 10:22:51 +07 2025 aarch64 Gateway, AP, DNSMasq, SmartDNS, NSS-ECM-SFE, QCA NSS, no STP
VAP on wlan1 for internet devices
IPv4 & IPv6 (Prefix Delegation)
Static Leases & DHCP
Cloudflare DoH & DoT, No QoS, No Forced DoT, 802.11k
2.4GHz: AP, AX Only, ACK Timing 300, WPA2 & WPA3 w/AES & GCMP
5GHz: AP, AX Only, ACK Timing 300, WPA2 & WPA3 w/AES & GCMP
Netgear AX1800 WiFi Mesh Extender
Xfinity 1.2Gbps/40Mbps
Joined: 18 Mar 2014 Posts: 13880 Location: Netherlands
Posted: Wed Oct 01, 2025 13:56 Post subject: Re: Speed on a R7800
MLandi wrote:
I'm curious about the speed possible on a R7800. I (supposedly) have a 1Gb download internet connection. Speedtest gives me about 540Mb. While the test is running, the load on the R7800 hits about 0.40. If I understand properly, with a 2 CPU processor, this value means the CPU is working at about 20%. Is a R7800 able to handle 1Gb?
On the old Kernel 4.9 it could do 1 GB/s without any off loading, on newer kernel 6.X you need NSS off loading but it might introduce problems of its own
To be able to do 1 Gb/s without any off loading you need quad core 2.0 GHz but if you want to do SQM with 1 Gb/s you need x86 CPU's
Joined: 04 Dec 2007 Posts: 1263 Location: Murrysville, PA
Posted: Wed Oct 01, 2025 14:46 Post subject: Re: Speed on a R7800
egc wrote:
On the old Kernel 4.9 it could do 1 GB/s without any off loading, on newer kernel 6.X you need NSS off loading but it might introduce problems of its own
Okay, I'm ignorant.
How do I get "NSS off loading" _________________ Linksys MX8500 DD-WRT v3.0-r62966 std (12/06/25)
Linux 6.6.118-rt29 #4715 SMP Sat Dec 6 10:22:51 +07 2025 aarch64 Gateway, AP, DNSMasq, SmartDNS, NSS-ECM-SFE, QCA NSS, no STP
VAP on wlan1 for internet devices
IPv4 & IPv6 (Prefix Delegation)
Static Leases & DHCP
Cloudflare DoH & DoT, No QoS, No Forced DoT, 802.11k
2.4GHz: AP, AX Only, ACK Timing 300, WPA2 & WPA3 w/AES & GCMP
5GHz: AP, AX Only, ACK Timing 300, WPA2 & WPA3 w/AES & GCMP
Netgear AX1800 WiFi Mesh Extender
Xfinity 1.2Gbps/40Mbps
Joined: 04 Dec 2007 Posts: 1263 Location: Murrysville, PA
Posted: Wed Oct 01, 2025 17:00 Post subject:
arfur wrote:
were you able to resolve this?
I've got the exact same problem and speed issue on a 1gig fibre line.. CTF/SFE / CTF &FA don't get me past 600Mbps.
I will try this evening after work. If I mess with the router while my wife is at work, I'll need medical advice, not router advice. _________________ Linksys MX8500 DD-WRT v3.0-r62966 std (12/06/25)
Linux 6.6.118-rt29 #4715 SMP Sat Dec 6 10:22:51 +07 2025 aarch64 Gateway, AP, DNSMasq, SmartDNS, NSS-ECM-SFE, QCA NSS, no STP
VAP on wlan1 for internet devices
IPv4 & IPv6 (Prefix Delegation)
Static Leases & DHCP
Cloudflare DoH & DoT, No QoS, No Forced DoT, 802.11k
2.4GHz: AP, AX Only, ACK Timing 300, WPA2 & WPA3 w/AES & GCMP
5GHz: AP, AX Only, ACK Timing 300, WPA2 & WPA3 w/AES & GCMP
Netgear AX1800 WiFi Mesh Extender
Xfinity 1.2Gbps/40Mbps
Joined: 16 Nov 2015 Posts: 7085 Location: UK, London, just across the river..
Posted: Wed Oct 01, 2025 20:13 Post subject: Re: Speed on a R7800
MLandi wrote:
I...While the test is running, the load on the R7800 hits about 0.40. If I understand properly, with a 2 CPU processor, this value means the CPU is working at about 20%. Is a R7800 able to handle 1Gb?
hmm its not like that...as you wish...
DDWRT nor OpenWRT do not use multi-threading, but rather balance the cores..so some processes are done by one of the cores and ect for the other core...you can fiddle with balance, but at the end R7800 has x2 CPU's @1.7Ghz so that much the router can do...Dynalink or R9000 have x4 cores at 2Ghz+ and those work and have a better balance and CPU speed...
Also, test results depend on client compatibility, range, hardware capabilities, router settings and ect. and yes you could try to turn on ECM-NSS and QCA subsystem, but on my R7800 those tend to bug the router and i loose WAN..and last time i check it, it was few builds ago...but you can try and post the results..
finally ACK time of 2000 is not great value, in general those are like 0, 450, 900, 1350 or 3150, but if it works for you it works...i use either 450 or 900 never has an issues
arfur wrote:
were you able to resolve this?
I've got the exact same problem and speed issue on a 1gig fibre line.. CTF/SFE / CTF &FA don't get me past 600Mbps.
CTF/SFE / CTF &FA nope those are Broadcom acceleration engine, nothing like QCA...and your router is different than R7800 _________________ Atheros
TP-Link WR1043NDv2 -DD-WRT 62606 Gateway/DoT,Forced DNS,Ad-Block,Firewall,x4VLAN,VPN
TP-Link WR1043NDv2 -Gargoyle OS 1.15.x AP,DNS,QoS,Quotas
Qualcomm-Atheros
Netgear XR500 -DD-WRT 63600 GTW/SmDNS/DoT,AD-Blk,Forced DNS,AP&Net Isolation,x2VLAN,Vanilla
Netgear R7800 --DD-WRT 62606 Gateway/DNSCryptv2,AD-Block,Forced DNS,AP&Net Isolation,x3VLAN,Firewall,Vanilla,VPN cli
Netgear R9000 --DD-WRT 62606 Gateway/DoT,AD-Block,AP Isolation,Firewall,Forced DNS,x2VLAN,Vanilla
Dynalink DL-WRX36-DDWRT 62606
Broadcom
Netgear R7000 --DD-WRT 63600 GTW/DNScrypt-proxy2/AD-Block,IPset Firewall,Forced DNS,x4VLAN,VPN cli
NOT USING 5Ghz ANYWHERE
------------------------------------------------------
Stubby DNS over TLS I DNSCrypt v2 by mac913
Joined: 16 Nov 2015 Posts: 7085 Location: UK, London, just across the river..
Posted: Thu Oct 02, 2025 10:23 Post subject:
I would recommend what i have and what the other also favor... Dynalink WRX36 if you could find one, on ebay/amazon and go over the not that complex initial install ... its not that bad and actually you have an easy recover option if something goes wrong...mine still fine and never had an issue... yet
Otherwise something x86 or x64.... or new Linksys (DDWRT supported line) that have quad core CPU's
Qualcomm IPQ8072A same A53 as on Dynalink.... if im not wrong MX8500 or MX5300... sadly i don't own any of those, nor ve seen lots of new builds reports recently but they have very capable CPU's _________________ Atheros
TP-Link WR1043NDv2 -DD-WRT 62606 Gateway/DoT,Forced DNS,Ad-Block,Firewall,x4VLAN,VPN
TP-Link WR1043NDv2 -Gargoyle OS 1.15.x AP,DNS,QoS,Quotas
Qualcomm-Atheros
Netgear XR500 -DD-WRT 63600 GTW/SmDNS/DoT,AD-Blk,Forced DNS,AP&Net Isolation,x2VLAN,Vanilla
Netgear R7800 --DD-WRT 62606 Gateway/DNSCryptv2,AD-Block,Forced DNS,AP&Net Isolation,x3VLAN,Firewall,Vanilla,VPN cli
Netgear R9000 --DD-WRT 62606 Gateway/DoT,AD-Block,AP Isolation,Firewall,Forced DNS,x2VLAN,Vanilla
Dynalink DL-WRX36-DDWRT 62606
Broadcom
Netgear R7000 --DD-WRT 63600 GTW/DNScrypt-proxy2/AD-Block,IPset Firewall,Forced DNS,x4VLAN,VPN cli
NOT USING 5Ghz ANYWHERE
------------------------------------------------------
Stubby DNS over TLS I DNSCrypt v2 by mac913
Joined: 04 Dec 2007 Posts: 1263 Location: Murrysville, PA
Posted: Thu Oct 02, 2025 12:16 Post subject:
Alozaros wrote:
I would recommend what i have and what the other also favor... Dynalink WRX36 if you could find one, on ebay/amazon and go over the not that complex initial install ... its not that bad and actually you have an easy recover option if something goes wrong...mine still fine and never had an issue... yet
Otherwise something x86 or x64.... or new Linksys (DDWRT supported line) that have quad core CPU's
Qualcomm IPQ8072A same A53 as on Dynalink.... if im not wrong MX8500 or MX5300... sadly i don't own any of those, nor ve seen lots of new builds reports recently but they have very capable CPU's
Thanks _________________ Linksys MX8500 DD-WRT v3.0-r62966 std (12/06/25)
Linux 6.6.118-rt29 #4715 SMP Sat Dec 6 10:22:51 +07 2025 aarch64 Gateway, AP, DNSMasq, SmartDNS, NSS-ECM-SFE, QCA NSS, no STP
VAP on wlan1 for internet devices
IPv4 & IPv6 (Prefix Delegation)
Static Leases & DHCP
Cloudflare DoH & DoT, No QoS, No Forced DoT, 802.11k
2.4GHz: AP, AX Only, ACK Timing 300, WPA2 & WPA3 w/AES & GCMP
5GHz: AP, AX Only, ACK Timing 300, WPA2 & WPA3 w/AES & GCMP
Netgear AX1800 WiFi Mesh Extender
Xfinity 1.2Gbps/40Mbps
Joined: 04 Dec 2007 Posts: 1263 Location: Murrysville, PA
Posted: Thu Oct 02, 2025 12:57 Post subject:
Alozaros wrote:
Otherwise something x86 or x64.... or new Linksys (DDWRT supported line) that have quad core CPU's
Qualcomm IPQ8072A same A53 as on Dynalink.... if im not wrong MX8500 or MX5300... sadly i don't own any of those, nor ve seen lots of new builds reports recently but they have very capable CPU's
Where can I find a list of DD-WRT supported routers? When I search, I get old pages and I thought the DDWRT database was out of date. _________________ Linksys MX8500 DD-WRT v3.0-r62966 std (12/06/25)
Linux 6.6.118-rt29 #4715 SMP Sat Dec 6 10:22:51 +07 2025 aarch64 Gateway, AP, DNSMasq, SmartDNS, NSS-ECM-SFE, QCA NSS, no STP
VAP on wlan1 for internet devices
IPv4 & IPv6 (Prefix Delegation)
Static Leases & DHCP
Cloudflare DoH & DoT, No QoS, No Forced DoT, 802.11k
2.4GHz: AP, AX Only, ACK Timing 300, WPA2 & WPA3 w/AES & GCMP
5GHz: AP, AX Only, ACK Timing 300, WPA2 & WPA3 w/AES & GCMP
Netgear AX1800 WiFi Mesh Extender
Xfinity 1.2Gbps/40Mbps
Joined: 04 Dec 2007 Posts: 1263 Location: Murrysville, PA
Posted: Thu Oct 02, 2025 14:25 Post subject:
kernel-panic69 wrote:
WAN setup -> Shortcut Forwarding Engine options.
Looks like my R7800's configuration and turning on anything in SFE is not compatible. No matter what I set, after a reboot the SFE choice is "Disable". I guess I need to invest in something like a MX8500 to get my 1Gb/s speed. _________________ Linksys MX8500 DD-WRT v3.0-r62966 std (12/06/25)
Linux 6.6.118-rt29 #4715 SMP Sat Dec 6 10:22:51 +07 2025 aarch64 Gateway, AP, DNSMasq, SmartDNS, NSS-ECM-SFE, QCA NSS, no STP
VAP on wlan1 for internet devices
IPv4 & IPv6 (Prefix Delegation)
Static Leases & DHCP
Cloudflare DoH & DoT, No QoS, No Forced DoT, 802.11k
2.4GHz: AP, AX Only, ACK Timing 300, WPA2 & WPA3 w/AES & GCMP
5GHz: AP, AX Only, ACK Timing 300, WPA2 & WPA3 w/AES & GCMP
Netgear AX1800 WiFi Mesh Extender
Xfinity 1.2Gbps/40Mbps
Joined: 08 May 2018 Posts: 16747 Location: Texas, USA
Posted: Thu Oct 02, 2025 15:26 Post subject:
MLandi wrote:
Alozaros wrote:
Otherwise something x86 or x64.... or new Linksys (DDWRT supported line) that have quad core CPU's
Qualcomm IPQ8072A same A53 as on Dynalink.... if im not wrong MX8500 or MX5300... sadly i don't own any of those, nor ve seen lots of new builds reports recently but they have very capable CPU's
Where can I find a list of DD-WRT supported routers? When I search, I get old pages and I thought the DDWRT database was out of date.
The router database itself *ISN'T* current last I knew. However, the Supported Devices Wiki is fairly up-to-date, except for the newly supported managed switches, and of course, I don't have a list of all x86 / x86_64 devices that are on the market and have been tested to work with DD-WRT. I recently broke it down to paid license, 802.11*g legacy, and 802.11n being in separate pages because any edits were a huge chore with the amount of data and limitations of MediaWiki.
MLandi wrote:
kernel-panic69 wrote:
WAN setup -> Shortcut Forwarding Engine options.
Looks like my R7800's configuration and turning on anything in SFE is not compatible. No matter what I set, after a reboot the SFE choice is "Disable". I guess I need to invest in something like a MX8500 to get my 1Gb/s speed.
Joined: 04 Dec 2007 Posts: 1263 Location: Murrysville, PA
Posted: Thu Oct 02, 2025 15:36 Post subject:
kernel-panic69 wrote:
The router database itself *ISN'T* current last I knew. However, the Supported Devices Wiki is fairly up-to-date, except for the newly supported managed switches...
Thanks, that helps! _________________ Linksys MX8500 DD-WRT v3.0-r62966 std (12/06/25)
Linux 6.6.118-rt29 #4715 SMP Sat Dec 6 10:22:51 +07 2025 aarch64 Gateway, AP, DNSMasq, SmartDNS, NSS-ECM-SFE, QCA NSS, no STP
VAP on wlan1 for internet devices
IPv4 & IPv6 (Prefix Delegation)
Static Leases & DHCP
Cloudflare DoH & DoT, No QoS, No Forced DoT, 802.11k
2.4GHz: AP, AX Only, ACK Timing 300, WPA2 & WPA3 w/AES & GCMP
5GHz: AP, AX Only, ACK Timing 300, WPA2 & WPA3 w/AES & GCMP
Netgear AX1800 WiFi Mesh Extender
Xfinity 1.2Gbps/40Mbps
... its not that bad and actually you have an easy recover option if something goes wrong...mine still fine and never had an issue... yet