From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from wp530.webpack.hosteurope.de (wp530.webpack.hosteurope.de [80.237.130.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2F9C23D9E; Mon, 4 Mar 2024 14:10:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.237.130.52 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709561420; cv=none; b=rrqktHcTi0ptiZGztycZGs9UUV7pP8pyPuGL2tedtNgPKEhLaxohrHElx975zRecS7P+1BtXn00xOVpBDN4DeyIRQ48wpruzgJD61CUcLKKuegxsrpTOyKvS+xX2R9CtWC1SgtnQIXPsl9ADbwjDFy2EU3THM+h7GogeMlAxgGI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709561420; c=relaxed/simple; bh=iq23kpk8WdH7WCVOi5NjLdInalEVix39z/ioMqK4M0g=; h=Message-ID:Date:MIME-Version:Subject:From:To:Cc:References: In-Reply-To:Content-Type; b=X62xdaC+pvnSXKOxpUmxAD+ceNTTHdNkJqzCEgFV5yi/M+SkQsRkB/qLiSA+AsAMKg9EkJ5ptOTTmxDBQJYvEKO99xqSn038U65NDtHx8TTJaTm2yv+52tBkQVjtLAlu+hHuSyv0aEo10MkWS+br3HmWcMCnmf4cNxW26pgOSgk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=leemhuis.info; spf=pass smtp.mailfrom=leemhuis.info; dkim=pass (2048-bit key) header.d=leemhuis.info header.i=@leemhuis.info header.b=VYu11XBP; arc=none smtp.client-ip=80.237.130.52 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=leemhuis.info Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=leemhuis.info Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=leemhuis.info header.i=@leemhuis.info header.b="VYu11XBP" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=leemhuis.info; s=he214686; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:References:Reply-To:Cc:To:From:Subject:MIME-Version:Date: Message-ID:From:Sender:Reply-To:Subject:Date:Message-ID:To:Cc:MIME-Version: Content-Type:Content-Transfer-Encoding:Content-ID:Content-Description: In-Reply-To:References; bh=iq23kpk8WdH7WCVOi5NjLdInalEVix39z/ioMqK4M0g=; t=1709561418; x=1709993418; b=VYu11XBPnwHeYC7pVVai8SZCY2gERnTTURV+S+EV7XXIfGY Gbo//1Q9BWzxq6vp6rCO2gkbpxvrNRlHrxiFuA86nT7hKDyByJH8YPl4+M5/gKXpwzmoZ3zt5eNmW cqVAkuPAkSuPIH/8ZYWwtOX1OPBPl7zST5T5tb/bB/t81Tn4xcGUsyWPW7NpsI/2UO0d1L0EbyScT HlqmePSjry49aGF9adqi7jOXQil1NqwNgQXFvwrlIsrBGzV+JSQjRfMK/RHFDMMvuMUXqRpMa1/Sc a8QTFoVtEkSL0z7jRXOPVA7g9sWqIoUZ4EDAL3UT2YRPuUoYRpLkfsuDGBdSveDg==; Received: from [2a02:8108:8980:2478:8cde:aa2c:f324:937e]; authenticated by wp530.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128) id 1rh917-0000G0-OE; Mon, 04 Mar 2024 15:10:09 +0100 Message-ID: <2ae4d3ba-3024-4bfe-8f95-c5c9526cd16f@leemhuis.info> Date: Mon, 4 Mar 2024 15:10:07 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: This is the fourth time I've tried to find what led to the regression of outgoing network speed and each time I find the merge commit 8c94ccc7cd691472461448f98e2372c75849406c Content-Language: en-US, de-DE From: "Linux regression tracking (Thorsten Leemhuis)" To: Mathias Nyman , Linux regressions mailing list , Thomas Gleixner Cc: "Christian A. Ehrhardt" , niklas.neronin@linux.intel.com, Linux List Kernel Mailing , Greg KH , linux-usb@vger.kernel.org, linux-x86_64@vger.kernel.org, netdev@vger.kernel.org, Randy Dunlap , Mikhail Gavrilov Reply-To: Linux regressions mailing list , Linux regressions mailing list References: <2d87509a-1515-520c-4b9e-bba4cd4fa2c6@linux.intel.com> <1126ed0a-bfc1-a752-1b5e-f1339d7a8aa5@linux.intel.com> <34d7ab1b-ab12-489d-a480-5e6ccc41bfc3@infradead.org> <10487018-49b8-4b27-98a1-07cee732290d@infradead.org> <4f34b6a8-4415-6ea4-8090-262847d606c6@linux.intel.com> <3ea25443-1275-4c67-90e0-b637212d32b5@leemhuis.info> <1e719367-01ae-565a-2199-0ff7e260422b@linux.intel.com> <410817b8-1cf9-4285-b20b-f1fa0513cee8@leemhuis.info> In-Reply-To: <410817b8-1cf9-4285-b20b-f1fa0513cee8@leemhuis.info> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-bounce-key: webpack.hosteurope.de;regressions@leemhuis.info;1709561418;440f53ab; X-HE-SMSGID: 1rh917-0000G0-OE On 26.02.24 10:51, Linux regression tracking (Thorsten Leemhuis) wrote: > On 26.02.24 10:24, Mathias Nyman wrote: >> On 26.2.2024 7.45, Linux regression tracking (Thorsten Leemhuis) wrote: >>> On 21.02.24 14:44, Mathias Nyman wrote: >>>> On 21.2.2024 1.43, Randy Dunlap wrote: >>>>> On 2/20/24 15:41, Randy Dunlap wrote: >>>>>> {+ tglx] >>>>>> On 2/20/24 15:19, Mikhail Gavrilov wrote: >>>>>>> On Mon, Feb 19, 2024 at 2:41 PM Mikhail Gavrilov >>>>>>> wrote: >>>>>>> I spotted network performance regression and it turned out, this was >>>>>>> due to the network card getting other interrupt. It is a side effect >>>>>>> of commit 57e153dfd0e7a080373fe5853c5609443d97fa5a. >>>>>> That's a merge commit (AFAIK, maybe not so much). The commit in >>>>>> mainline is: >>>>>> >>>>>> commit f977f4c9301c >>>>>> Author: Niklas Neronin >>>>>> Date:   Fri Dec 1 17:06:40 2023 +0200 >>>>>> >>>>>>       xhci: add handler for only one interrupt line >>>>>> >>>>>>> Installing irqbalance daemon did not help. Maybe someone experienced >>>>>>> such a problem? >> This isn't really about those usb xhci patches. >> This is about which interrupt gets assigned to which CPU. > I know, but from my understanding of Linus expectations wrt to handling > regressions it does not matter much if a bug existed earlier or > somewhere else: what counts is the commit that exposed the problem. TWIMC, I mentioned this twice in mails to Linus, he didn't get involved, so I assume things are fine the way they are for him. And then it's of course totally fine for me, too. :-D Thx again for all your help and sorry for causing trouble, but in my line of work these "might or might not be a regression from Linus viewpoint" sometimes happen. Ciao, Thorsten #regzbot resolve: apparently not a regression from Linus viewpoint