From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sasha Neftin Date: Thu, 2 Sep 2021 13:28:36 +0300 Subject: [Intel-wired-lan] Slow e1000e Network Interface with different kernel In-Reply-To: <0c8eb89c-4a55-d977-312f-6856ea5b59ba@neusta.de> References: <0c8eb89c-4a55-d977-312f-6856ea5b59ba@neusta.de> Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: intel-wired-lan@osuosl.org List-ID: On 9/2/2021 13:01, Marco Witte wrote: > Scenario: Plugin into network, establishes link and IP is assigned. > scp from another machine in the same subnet gives approx. 1kb/sec. > Cross check with an usb 3 dock with integrated network adapter. Full speed. > > Kai Heng-Feng build a patch for tgp https://lkml.org/lkml/2021/7/12/2927 > His deb kernel packages with that patch based on 5.10.x kernel ran full > throttle on this machine. > However this was the only successfull attempt to get full speed. > > The Kernel Mainline 5.13. contains visual similar patches, but they > still have the slow down on the same machine. > Some people suspect pcie changes at that point. > > Some curious fact I found out while testing: I booted up a manjaro > (current) usb stick and had full speed on the e1000e. Then I installed > manjaro from that stick to the harddrive. Booted that and it didn't > perform well. > > As this is my first rodeo on this mailinglist, I need to reference some > information: > > Referencing: https://bugzilla.kernel.org/show_bug.cgi?id=213377 > Here is the launchpad: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1927925 > e1000e Sourceforge bugreport(s): https://sourceforge.net/p/e1000/bugs/681/ > This is still an issue with all current mainline kernels. Last test was > 5.14 RC7 > > I can provide any output you need. > Marco, Run echo on > /sys/bus/pci/devices/0000\:00\:16.0/power/control command on your machine. Please, let us know the result. > > _______________________________________________ > Intel-wired-lan mailing list > Intel-wired-lan at osuosl.org > https://lists.osuosl.org/mailman/listinfo/intel-wired-lan Sasha