From owner-freebsd-infiniband@freebsd.org Tue Oct 8 05:13:05 2019 Return-Path: Delivered-To: freebsd-infiniband@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 5A48C1389CD for ; Tue, 8 Oct 2019 05:13:05 +0000 (UTC) (envelope-from mi+t@aldan.algebra.com) Received: from symbion.zaytman.com (symbion.zaytman.com [64.112.176.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "symbion", Issuer "Narawntapu" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 46nQTq5HQ7z4N66 for ; Tue, 8 Oct 2019 05:13:03 +0000 (UTC) (envelope-from mi+t@aldan.algebra.com) Received: from narawntapu.narawntapu (pool-108-5-48-210.nwrknj.fios.verizon.net [108.5.48.210]) by symbion.zaytman.com (8.15.2/8.15.2) with ESMTPS id x985Cv65092436 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 8 Oct 2019 01:12:57 -0400 (EDT) (envelope-from mi+t@aldan.algebra.com) X-Authentication-Warning: symbion.zaytman.com: Host pool-108-5-48-210.nwrknj.fios.verizon.net [108.5.48.210] claimed to be narawntapu.narawntapu Received: from aldan.narawntapu (aldan [192.168.3.13]) by narawntapu.narawntapu (8.15.2/8.15.2) with ESMTP id x985CkiG003445; Tue, 8 Oct 2019 01:12:46 -0400 (EDT) (envelope-from mi+t@aldan.algebra.com) X-Authentication-Warning: narawntapu.narawntapu: Host aldan [192.168.3.13] claimed to be aldan.narawntapu Subject: Re: Questions about Infiniband on FreeBSD To: Hans Petter Selasky , Jason Bacon , "Mikhail T." , freebsd-infiniband@freebsd.org References: <5570c97f-3903-d499-2420-8351f7beed37@aldan.algebra.com> <062c0a38-a51d-58b0-2a6e-594102debad2@gmail.com> <112453f7-350e-a1e9-d372-923dfbdb727c@selasky.org> From: "Mikhail T." Message-ID: Date: Tue, 8 Oct 2019 01:12:46 -0400 MIME-Version: 1.0 In-Reply-To: <112453f7-350e-a1e9-d372-923dfbdb727c@selasky.org> Content-Language: en-US X-DCC-uptempo.net-Metrics: narawntapu 1093; bulk rep Body=4 Fuz1=4 Fuz2=4 rep=49% X-Spam-Status: No, score=-0.9 required=19.0 tests=ALL_TRUSTED,BAYES_00, HTML_MESSAGE,RATWR8_MESSID autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on narawntapu.narawntapu X-Rspamd-Queue-Id: 46nQTq5HQ7z4N66 X-Spamd-Bar: ++ Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of mi@aldan.algebra.com has no SPF policy when checking 64.112.176.10) smtp.mailfrom=mi@aldan.algebra.com X-Spamd-Result: default: False [2.13 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.56)[-0.556,0]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; TO_DN_SOME(0.00)[]; RCVD_TLS_LAST(0.00)[]; TAGGED_RCPT(0.00)[thun]; HAS_XAW(0.00)[]; DMARC_NA(0.00)[algebra.com]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; URI_COUNT_ODD(1.00)[3]; AUTH_NA(1.00)[]; RCVD_COUNT_THREE(0.00)[3]; TO_MATCH_ENVRCPT_SOME(0.00)[]; IP_SCORE(-0.01)[country: US(-0.05)]; NEURAL_SPAM_LONG(0.80)[0.798,0]; R_SPF_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; ASN(0.00)[asn:394548, ipnet:64.112.176.0/24, country:US]; TAGGED_FROM(0.00)[t]; MID_RHS_MATCH_FROM(0.00)[]; RECEIVED_SPAMHAUS_PBL(0.00)[210.48.5.108.khpj7ygk5idzvmvt5x4ziurxhy.zen.dq.spamhaus.net : 127.0.0.10] Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-infiniband@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Infiniband on FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Oct 2019 05:13:05 -0000 On 03.10.19 03:18, Hans Petter Selasky wrote: > On 2019-10-03 02:49, Jason Bacon wrote: >> I saw frequent hangs (self-resolving) with an MTU of 65520.  Cutting >> it in half improved reliability by orders of magnitude, but still >> occasional issues.  Halving it again to 16380 seemed to be the sweet >> spot. > > Try this fix: > > https://svnweb.freebsd.org/changeset/base/352955 Well, I waited for these to hit the 11-stable and rebuilt both kernels. Unfortunately, I cannot tell they help very much. With MTU of 65K I still see hangups in NFS and other data-transfers. Setting MTU to 16K seems Ok. Yours, -mi From owner-freebsd-infiniband@freebsd.org Tue Oct 8 13:07:17 2019 Return-Path: Delivered-To: freebsd-infiniband@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id D7177147CFD for ; Tue, 8 Oct 2019 13:07:17 +0000 (UTC) (envelope-from bacon4000@gmail.com) Received: from mail-io1-xd32.google.com (mail-io1-xd32.google.com [IPv6:2607:f8b0:4864:20::d32]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46nd110JFgz3Qcm for ; Tue, 8 Oct 2019 13:07:16 +0000 (UTC) (envelope-from bacon4000@gmail.com) Received: by mail-io1-xd32.google.com with SMTP id q10so36333458iop.2 for ; Tue, 08 Oct 2019 06:07:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-transfer-encoding:content-language; bh=Pg65MPpBOn+DFb3UsW2CmpyhShfJqdG5wu8OD0fvlfo=; b=R1q4+iJyFpo2huxbPPABAZp5I375y/79Vlu3MakwQiyIs95fWBQ0SftogfN9VD6Hgm +Ox6jl3SGvJZePzvsi6bP8Bh3lcWaLos2dIz0rDzOElC9fwn4stdJCp1ZxhtqtbroRvc yt+udoOU3G+11ohjKWz3RKR7/KQxOkdTTYkFzeR+W3aWF3wqvi6raNS9gMZM67FmxJTh 2IqYNmIrXS5irKX16A4aP9Gl6S4W1oJPl3bcNNMsUstfVxqSPcQAee4oH3zlSiAb9+oq CozY6xi5oR7PMltp+quirS2iHbPqbZFhV02Yhq07vD7JVgK0bpnktTJbAEsOH3wEUx2L mTJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=Pg65MPpBOn+DFb3UsW2CmpyhShfJqdG5wu8OD0fvlfo=; b=gofUDH8Pt/3qE5XL7sbuvgTCCHtPUkBsXq7UFmx0/ByE2MDr6YlGHv+L8CecoaqwEm XnHNiLcc7dYz6oAqCOMo5K421c6jypwn4N323t+7c19kPSeUjbXnpUKy+l+welX9MAOs 7oNatu5ocJcqPTKVoAuDchC5UoPO82pDQjP9Ukooms+SR4MPapcbIu5WYE/ufJjWODvr ix00/elYNj223pKqcqA2BFpCAShXLdBP5eqlGLyWrm/7IEl2VUMkrMDy6DUTJfwwInay 8GHvyv7F6aDktfeyi+3wq8dEoR00r+0TcbE0rMYTsSQbEfU4/C/jbNRow65QxtVGyfuU qvpQ== X-Gm-Message-State: APjAAAWUELXkJrrCSb/ScLEtNotSKqxj+Gm2UCRDkkhMlev+AY2t7J+R dt/Vepu87hLxYHN2mtMsLq4HgkXO X-Google-Smtp-Source: APXvYqw3O4lD3pNp1kFtrrA05r3dJGGh5A5QEIXea2aIHT1Yu88DncopJ3Znx3J3K1hPH4DFZx0pqw== X-Received: by 2002:a5e:8216:: with SMTP id l22mr2324146iom.252.1570540035379; Tue, 08 Oct 2019 06:07:15 -0700 (PDT) Received: from imacbsd.acadix.biz ([2605:a000:bc45:5f00:216:cbff:feb9:145]) by smtp.gmail.com with ESMTPSA id o17sm7335411ils.46.2019.10.08.06.07.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 08 Oct 2019 06:07:14 -0700 (PDT) Subject: Re: Questions about Infiniband on FreeBSD To: "Mikhail T." , Hans Petter Selasky , "Mikhail T." , freebsd-infiniband@freebsd.org References: <5570c97f-3903-d499-2420-8351f7beed37@aldan.algebra.com> <062c0a38-a51d-58b0-2a6e-594102debad2@gmail.com> <112453f7-350e-a1e9-d372-923dfbdb727c@selasky.org> From: Jason Bacon Message-ID: <65bfad8d-2f31-415e-69ec-b74dd5806f25@gmail.com> Date: Tue, 8 Oct 2019 08:07:13 -0500 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Content-Language: en-US X-Rspamd-Queue-Id: 46nd110JFgz3Qcm X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=R1q4+iJy; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of bacon4000@gmail.com designates 2607:f8b0:4864:20::d32 as permitted sender) smtp.mailfrom=bacon4000@gmail.com X-Spamd-Result: default: False [-3.00 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; FROM_EQ_ENVFROM(0.00)[]; IP_SCORE(0.00)[ip: (-4.69), ipnet: 2607:f8b0::/32(-2.54), asn: 15169(-2.14), country: US(-0.05)]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; MID_RHS_MATCH_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com.dwl.dnswl.org : 127.0.5.0]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; TAGGED_RCPT(0.00)[t,thun]; PREVIOUSLY_DELIVERED(0.00)[freebsd-infiniband@freebsd.org]; MIME_GOOD(-0.10)[text/plain]; IP_SCORE_FREEMAIL(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[2.3.d.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0]; RCVD_TLS_ALL(0.00)[] X-BeenThere: freebsd-infiniband@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Infiniband on FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Oct 2019 13:07:17 -0000 On 2019-10-08 00:12, Mikhail T. wrote: > On 03.10.19 03:18, Hans Petter Selasky wrote: >> On 2019-10-03 02:49, Jason Bacon wrote: >>> I saw frequent hangs (self-resolving) with an MTU of 65520.=C2=A0 Cut= ting=20 >>> it in half improved reliability by orders of magnitude, but still=20 >>> occasional issues.=C2=A0 Halving it again to 16380 seemed to be the s= weet=20 >>> spot. >> >> Try this fix: >> >> https://svnweb.freebsd.org/changeset/base/352955=20 > > Well, I waited for these to hit the 11-stable and rebuilt both=20 > kernels. Unfortunately, I cannot tell they help very much. With MTU of = > 65K I still see hangups in NFS and other data-transfers. > > Setting MTU to 16K seems Ok. Yours, > > -mi > Bummer.=C2=A0 Thanks for following up, =C2=A0=C2=A0=C2=A0 JB --=20 Earth is a beta site.