From owner-freebsd-net@freebsd.org Tue Jul 17 13:03:45 2018 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 94B4F103F3D6 for ; Tue, 17 Jul 2018 13:03:45 +0000 (UTC) (envelope-from lev@FreeBSD.org) Received: from onlyone.not-for.work (onlyone.not-for.work [IPv6:2a01:4f8:201:6350::2]) by mx1.freebsd.org (Postfix) with ESMTP id 0871488ECA for ; Tue, 17 Jul 2018 13:03:45 +0000 (UTC) (envelope-from lev@FreeBSD.org) Received: from [192.168.23.186] (unknown [89.113.128.32]) (Authenticated sender: lev@serebryakov.spb.ru) by onlyone.not-for.work (Postfix) with ESMTPSA id 40D087F9; Tue, 17 Jul 2018 16:03:43 +0300 (MSK) Reply-To: lev@FreeBSD.org Subject: Re: [REGRESSION] Fresh CURRENT consume much more CPU on network traffic (vlans + routing + ipfw with NAT) To: Eugene Grosbein , freebsd-net@freebsd.org References: <6d8b301b-8ee9-0e8b-80b5-6aced15ca843@FreeBSD.org> <5B4DA0B0.8020302@grosbein.net> From: Lev Serebryakov Openpgp: preference=signencrypt Autocrypt: addr=lev@FreeBSD.org; 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WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <5B4DA0B0.8020302@grosbein.net> Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="xsd8dxV4zOeV57xqGTYQOCY375cppwcDK" X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Jul 2018 13:03:45 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --xsd8dxV4zOeV57xqGTYQOCY375cppwcDK Content-Type: multipart/mixed; boundary="0NNk6tN6LuRdxPR3n7wqHGrP7T1k0iqRy"; protected-headers="v1" From: Lev Serebryakov Reply-To: lev@FreeBSD.org To: Eugene Grosbein , freebsd-net@freebsd.org Message-ID: Subject: Re: [REGRESSION] Fresh CURRENT consume much more CPU on network traffic (vlans + routing + ipfw with NAT) References: <6d8b301b-8ee9-0e8b-80b5-6aced15ca843@FreeBSD.org> <5B4DA0B0.8020302@grosbein.net> In-Reply-To: <5B4DA0B0.8020302@grosbein.net> --0NNk6tN6LuRdxPR3n7wqHGrP7T1k0iqRy Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 17.07.2018 10:54, Eugene Grosbein wrote: >> I have "SOHO" router on Atom D2500 with FreeBSD CURRENT. It runs >> CURRENT for very long time (from 11-CURRENT times), and recently it >> start to consume much more CPU on same traffic =E2=80=94 to the point = when it >> becomes unresponsive in shell (via ssh, not local console). >> >> I have rather complex ipfw ruleset, but this ruleset is the same for >> many years. >> >> Revisions before r333989 worked normally, I never seen any problem wi= th >> shell, no matter how much traffic is processed >> >> Revision r334649 with same configuration, same firewall ruleset, etc.= , >> becomes completely unresponsive under network load (pure transit traff= ic). >> >> when system is unresponsive I see this in `top -SH` >> >> 100083 root -76 - 0K 272K - 1 291.8H 95.31% kernel{if_io_tqg_= 1} >> 100082 root -76 - 0K 272K - 0 297.7H 95.20% kernel{if_io_tqg_= 0} >> >> And it is new to me. >=20 > I'm sure you will get it solved more quick if you perform bisection of = revision > even though it will take time. I'll try latest version (seems here were a lot of commit to iflib after my revision) and after that try yo bisect. --=20 // Lev Serebryakov --0NNk6tN6LuRdxPR3n7wqHGrP7T1k0iqRy-- --xsd8dxV4zOeV57xqGTYQOCY375cppwcDK Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEE+W0coLX0MYtnSzMK6rA8WL/cR48FAltN6S5fFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEY5 NkQxQ0EwQjVGNDMxOEI2NzRCMzMwQUVBQjAzQzU4QkZEQzQ3OEYACgkQ6rA8WL/c R49Pzg//Un80YhAzyxMOBY9jeVTo+tbJebQI+zd9xFQv1KqtxhBMRrwym6rpxcSW IESipKGkOcE9bENGKVM6Za1NnNKd4uE9cOvPGfHALfp+YnzPpNpUF6Kbvm7knuDf brUkSRutwX9u9ylqa0eO+Clfu37Q3f4EnZuwhUytkdmxKJP7HTzIomYfhLrVkqKR NPYVwxpni2EiFb516lEHmTCOAIFUJskxPPF5eT6FbPFdNHdEt0E1JLY+PN+0FVQU LwpRL3v4NVGxGshmd8vodmnEnTDmHjPypNWK9PhSL2JkFrJuBIEZJWUNJ4dbu1WH dhewqzY9edrfzHfbUcth8XGfuCeE4ZKcGstsntdLxnE4nw8oTuqC3XPcO1Zs7AHD 1/OkvQwRtdZ+Zmme4QtMFk0cOyYyvGALn9wQhNXyqnXzryTF2t9kiDG7jPh3M3LH c/Cpca/mF0pRuI8uV3IFRrgBW/X4QgbCXhuLKKmW7IMo67OYJ58BUMBpmevvGhlE UEHGVm6sF1uQ5Va5J7mVwLCT/RTRouM01ZfUFvHIeQEYrWT+QVcWW1NLCLCz2Wev YsKc9CaQyyADSwaYqpbD3MPSPWgA2k9z3IFPlBeGriZyZh6jx/HF3Sz4bCssvJp+ SY6rbNP1K8D53Nvu4XlE/K6Se/TGA6iRU5x7rjeIv+lTDK78TNI= =1rVb -----END PGP SIGNATURE----- --xsd8dxV4zOeV57xqGTYQOCY375cppwcDK--