Hi,

thanks for the input! I sadly don't have any other OBSD machine on this lan, so 
i can't do any tcpbench test right now :(

I hovewer did a test with fast.com (same LAN, same router, same computer):
- OpenBSD did 4Mbps down, 20 up
- Debian 12.5 did 300Mbps down and 20 up. 

Something is really fishy.

I would greatly appreciate any help and advice.

Regards,
--ext


Stefan Sperling írta 2024. ápr.. 28, V-n 22:02 órakor:
> On Sun, Apr 28, 2024 at 09:45:42PM +0200, Mizsei Zoltán wrote:
>> >Synopsis:   iwm regression in 7.5 amd64
>> >Category:   amd64
>> >Environment:
>>      System      : OpenBSD 7.5
>>      Details     : OpenBSD 7.5 (GENERIC.MP) #82: Wed Mar 20 15:48:40 MDT 2024
>>                       
>> dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
>> 
>>      Architecture: OpenBSD.amd64
>>      Machine     : amd64
>> >Description:
>>      I've noticed radically reduced networking speed since the 7.5 update. 
>> On 500Mbit net I experience 3-5 Mbit upload and 20 Mbit download speeds. 
>> Nothing else changed, as far as i know. 
>> >How-To-Repeat:
>>      Do a speedtest on 7.5 amd64 GENERIC system using an iwm card and with 
>> up-to-date firefox.
>> >Fix:
>>      No idea
>
> Please test with tcpbench to a host on LAN behind your AP. Running
> a speed test to the internet is pointless if the goal is to measure
> wifi throughput.
>
> With tcpbench I am seeing about 290Mbps Tx and Rx with iwm0.
>
> Generic internet speed test fast.com shows 210Mbps down, 86Mbps up.
> That's less than the wifi is capable of.
>
>> iwm0 at pci4 dev 0 function 0 "Intel Dual Band Wireless-AC 8265" rev 0x78, 
>> msi
>
> I was also testing with 8265.

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