netdev - Re: e1000e: abysmal performance of 8086:15fb rev 20 Ethernet

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Message-ID: <81r4o6s1-45n4-75ps-nr67-q66r2p3q9o37@vanv.qr>
Date:   Mon, 27 Dec 2021 19:42:18 +0100 (CET)
From:   Jan Engelhardt <jengelh@...i.de>
To:     netdev@...r.kernel.org
Subject: Re: e1000e: abysmal performance of 8086:15fb rev 20 Ethernet


On Saturday 2021-08-14 22:16, Jan Engelhardt wrote:

>I have here the following machine:
>
>  Fujitsu Lifebook U7311 laptop (2021)
>  product code VFY:U7311MF5AMDE
>  Family 6 Model 140 Intel "11th gen" Core i5-1135G7
>  i219-LM rev 20 Ethernet chip
>
>and this TGL Eternet performs absolutely miserably, achieving only
>like 1/100th of the supposed RX speed most of the time.
>
>[    0.000000] Linux version 5.14.0-rc5-1-default+ (root@...alhost.localdomain) (gcc (SUSE Linux) 11.1.1 20210721 [revision 076930b9690ac3564638636f6b13bbb6bc608aea], GNU ld (GNU Binutils; openSUSE Tumbleweed) 2.36.1.20210326-4) #3 SMP Sat Aug 14 19:29:53 CEST 2021

I find that this is fixed in 5.15(.8).