On Mon, Mar 14, 2022 at 09:42:37PM +0100, Stefan Sperling wrote:
>On Mon, Mar 14, 2022 at 03:05:00PM -0500, rea...@catastrophe.net wrote:
>> On Mon, Mar 14, 2022 at 08:58:01PM +0100, Stefan Sperling wrote:
>> >On Mon, Mar 14, 2022 at 02:34:29PM -0500, rea...@catastrophe.net wrote:
>> >> Well, even after adding iwm0 I notice high latency and packet loss
>> >> anywhere
>> >> from 15-50%. This occurs randomly when the device is either 2m, 10m, or
>> >> 30m
>> >> away from the access point. I did testing to verify I'm seeing 65-80%
>> >> signal
>> >> strength during some of the testing, but there's still loss even at that
>> >> strength.
>> >>
[..]
>> >That is not expected.
>> >The driver is working fine in general and connections should be stable.
>> >
[..]
>The closest equivalent to your setup I have here are a 3160
>minipcie card (same as the 7260 but with only 1 Tx/Rx chain
>each instead of 2, i.e. no MIMO), and an APU2.
>
>I did a quick test with a snapshot I built 4 days ago.
>
>iwm0 at pci1 dev 0 function 0 "Intel AC 3160" rev 0x83, msi
>iwm0: hw rev 0x160, fw ver 17.3216344376.0, address b4:6d:83:2b:95:a0
>
>I don't see any packet loss.
>This is the 3160 sending to a host behind the AP with tcpbench:
>
>Conn: 1 Mbps: 109.417 Peak Mbps: 109.425 Avg Mbps: 109.417
> 11035 13544592 108.248 100.00%
>Conn: 1 Mbps: 108.248 Peak Mbps: 109.425 Avg Mbps: 108.248
> 12035 13674912 109.399 100.00%
>Conn: 1 Mbps: 109.399 Peak Mbps: 109.425 Avg Mbps: 109.399
> 13049 13732832 108.346 100.00%
>Conn: 1 Mbps: 108.346 Peak Mbps: 109.425 Avg Mbps: 108.346
> 14055 13685048 108.936 100.00%
>Conn: 1 Mbps: 108.936 Peak Mbps: 109.425 Avg Mbps: 108.936
> 15057 13638712 108.892 100.00%
>Conn: 1 Mbps: 108.892 Peak Mbps: 109.425 Avg Mbps: 108.892
>^C
>--- kipo tcpbench statistics ---
>194605408 bytes sent over 15.537 seconds
>bandwidth min/avg/max/std-dev = 51.155/99.968/109.425/15.694 Mbps
>
># ifconfig iwm0
>iwm0:
>flags=a48843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,AUTOCONF6TEMP,AUTOCON0
> lladdr b4:6d:83:d4:b0:66
> index 1 priority 4 llprio 3
> groups: wlan egress
> media: IEEE802.11 autoselect (HT-MCS7 mode 11n)
> status: active
> ieee80211: join foo chan 36 bssid 00:85:1b:d2:e2:35 74% wpakey
> wpaprotop
I'm jealous!
Just sitting around doing nothing I'm seeing 30% loss to my next hop.
# ifconfig iwm0
iwm0: flags=808843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,AUTOCONF4> mtu 1500
lladdr 80:19:34:ab:ab:ab
index 5 priority 4 llprio 3
groups: wlan egress
media: IEEE802.11 autoselect (HT-MCS3 mode 11n)
status: active
ieee80211: nwid WIFI-NET chan 1 bssid 6c:70:9f:XX:XX:XX 52% wpakey
wpaprotos wpa2 wpaakms psk wpaciphers ccmp wpagroupcipher ccmp
inet 192.168.1.227 netmask 0xffffff00 broadcast 192.168.1.255
# ping -qc 30 192.168.1.1
PING 192.168.1.1 (192.168.1.1): 56 data bytes
--- 192.168.1.1 ping statistics ---
30 packets transmitted, 21 packets received, 30.0% packet loss
round-trip min/avg/max/std-dev = 2.092/5.420/10.804/2.673 ms
What exact model do you have of the 3160? Maybe I can try and source one
and give it a try.
Thanks.
