Performance of OpenWrt 21.02.1

Hardware Questions and Recommendations
1

Hello all,
I have MediaTek MT7620A ver:2 eco:6 device. I have a 1GBPS wan line. but On a wireless 5G network, I always get 100-200 Mbps speed. even if I am very near to the router. Are there any performance tweaks?

I have only AdBlock installed that blocks 60K domains. does this downgrade performance by so much?
Kindly help.

2

What performance do you get when connected via gigabit Ethernet?

3

Direct ethernet 450-550 Mbps without router and router Lan cable 200-300 and on wifi avg is 100Mbps

4

Try disabling the Adblock and see if your speeds (via Ethernet) increase.

Your WiFi speeds may be possible to improve, depending on the hardware capabilities and configuration details. The Ethernet speeds will give you an idea of maximum performance you can achieve.

5

The performance tweak is not to use severely underpowered hardware, you'll never get anything near even 500mbit using that SoC.

1 Like
6

Adblock disable does not make significant improvement.

7

Which one do u suggest? or what should I look for if have to buy a new one?

8
2 Likes
9

Something that uses aarch64 @ ~1.4GHz or better
Personally I'd use separate devices, one acting as gateway/firewall and one as AP.

2 Likes
10

Xfinity 1GBPS plan I have. and as per the specification, my router can take up, up to 1.2 GBPS load. I can see process and memory is also below moderate load. Memory 50% available.

I recently created a guest and IoT network on this. I think its taking load, but again having doubt as it does not show up any load.

11

^this. Unless your router has decent cpu running it you will always get better performance using a separate AP. Also you will get better performance because you will be able to put the AP centrally in the house rather than being tied to where your incoming connection enters the house.

12

Can you post a link to the tech data of your device? Is this your device https://wikidevi.wi-cat.ru/Edimax_BR-6478AC_v2 ?

Tweaks you can try:

  • reduce transmit power when testing wifi performance while beeing right next to the device
  • the are two settings in luci at your firewall tab that can boost performance. I think they are called somethink like hardware offloading.
  • how many antennas do u use? are all your devices compatible in protocoll (n,ac, ax) and with there respective antenna( mimo 1x1 or 2x2or 3x3) amount?
13

The detailed specification of the device -

MT7620A 580MHz
ROM 16MB SPI Flash
RAM 128MB DDR2
2.4G WiFi
2 * 2 ( the highest rate of 300Mbps)
5G WiFi
2 * 2 ( maximum rate of 867Mbps)
Antenna
External dual-band omni-directional antenna 2

A USB 2.0 interface (DC output: 5V / 1A)
2 10 / 100M adaptive LAN port (Auto MDI / MDIX)
A 10 / 100M adaptive WAN port (Auto MDI / MDIX)
A red / blue / yellow three -color LED

Wireless Parameters Concurrent dual-band 2.4GHz and 5GHz
Does not support beamforming technology
Radio channel
2.4GHz Channel: 1,2,3,4,5,6,7,8,9,10,11,12,13
5GHz Channel: 149,153,157,161,165
5GHz DFS Channel: 36,40,44,48,52,56,60,64
Modulation
11b: DSSS: DBPSK (1Mbps), DQPSK (2Mbps),
CCK (5.5 / 11Mbps)
11a / g: OFDM: BPSK (6 / 9Mbps),
QPSK (12 / 18Mbps), 16QAM (24 / 36Mbps),
Q64QAM (48 / 54Mbps)
11n: MIMO-OFDM: BPSK, QPSK, 16QAM, 64QAM.
Q Rate Set : MCS0 ~ MCS15
11ac: MIMO-OFDM: BPSK,
QQPSK, 16QAM, 64QAM, 256QAM.
Q Rate Set : MCS0 ~ MCS9 ( supports two streams )
Receiver sensitivity
11Mbps: ≤-90dBm, 54 Mbps: ≤-72dBm,
HT20 QMCS7: ≤-69dBm,
QHT40 MCS7: ≤-66dBm,
VHT20 MCS8: ≤-65dBm,
Q VHT40 MCS9: ≤-60dBm,
QVHT80 MCS9: ≤-58 dBm
Protocol Standards IEEE 802.11a / b / g / n / ac, IEEE 802.3 / 3u

I don't see hardware offloading, I can see
image

Device has - OpenWrt 21.02.1 r16325-88151b8303

14

First and foremost, decide what you are benchmarking.

WiFi performance? Routing performance? Your ISP speed?
All of those are "chained" and act as lowest common denominator.

Direct ethernet 450-550 Mbps without router and router Lan cable 200-300 and on wifi avg is 100Mbps

Well if you are getting 500Mbit on wire without router, you are certainly not having 1Gbit connection. Maybe PHY is Gbit but youe ISP is not up to it.

Further, if your router brings down to 300Mbit then you have slow hardware. Try enabling SW offload and test again.

When that is done, try using 80MHz 5GHz channel on WiFi.

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15

Activate software offloading and you will see hardware offloading option. But I don't know if MT7620 is compatible with hardware offloading...

16

I set the below settings. but not seen any performance change.

Uploading: image.png...

17

Hi kpise

Your router’s wan speed is 10/100 Mbps.

1 Like
18

I don't believe it... where do you find this info ?

19

Here perhaps?