From owner-svn-src-head@freebsd.org Fri Feb 15 01:12:25 2019 Return-Path: Delivered-To: svn-src-head@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 7625514E94DF; Fri, 15 Feb 2019 01:12:25 +0000 (UTC) (envelope-from yaneurabeya@gmail.com) Received: from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com [IPv6:2607:f8b0:4864:20::62a]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id E6A796EA3A; Fri, 15 Feb 2019 01:12:24 +0000 (UTC) (envelope-from yaneurabeya@gmail.com) Received: by mail-pl1-x62a.google.com with SMTP id p4so4071165plq.11; Thu, 14 Feb 2019 17:12:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=DunghJBHSTP5HVNFEH0LDRSKAjI3MO2bD50i51qBt/0=; b=KS0WAmJ6VPsfDHBK3+WU/A0N8Z5ucGIhWqVJC9GMV7AQPXsF5oZ90lZQshUceir/EQ 8/tnf5lNbCSGMENlxDcyksfqynSlg4UuWGB0DlFxxbVwM72a5vnqjjBf5a38seHDFHdb XIOh5fJwbMuHpKGu4uK0VL9NogiYZOQ5UPkNVh4AM81v7/dk8o44o27DlXzMZ5dyqykj VGHYaMNFD9cebGG1QwAfOjGNDjJO/fkfuR/mXeqs1Eswnspdeje/dEvqoskrLC1za2xB +7bPoCiuoyYpOZuNaOW0B5Z+Ues9kJUkPFeLarV1GmMYmyhYOGTpwCsk4LpSbB2DbMFs 1uoQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=DunghJBHSTP5HVNFEH0LDRSKAjI3MO2bD50i51qBt/0=; b=nAoMW/hFIjHeIalO6mkhcuZalt4biS/s26tCuPj7XeGZJZOQ3Vu87jell6s9j4Wq9x HD/XNNLBmW3w8Y49WAjnuLT8H7OEqXhpQ5YQjQhEc0eKCM58LefbVaucL13beY1su6EC bRuqnazu4yyjQyBdII63MTJJS6zWlbBBZ68eKrI534TpwbthqDAdQPF9vOzcTGSPsFAP 36Li7oC8rdRAs0/Qj0Y5uIO6Xt6uioD4lPdBqUKyfw46nB1ZGdlRK4SnTUn2q52ynL5N KqyfV2Qum5Yo4nINw3sq0XBU39f0ht7j1KICXN+EhJyXlCH6z7x6Iy7e0yetjvqs8rqg dAUg== X-Gm-Message-State: AHQUAuYGslVRS+3S4uadgzFTLuDwUiRhFNgC84XxG+AXZfUWt05JywrL mMFGKUG40aBbZlJwiNT7LlV8Cg7n X-Google-Smtp-Source: AHgI3IZc6eQIdW5YHRfeS6ytgj0O8VYIoD+d0WibhOjFPPRZBkCPMN64C2/l//kie4rJZfqPVWIuqg== X-Received: by 2002:a17:902:2ac3:: with SMTP id j61mr7308551plb.185.1550193143554; Thu, 14 Feb 2019 17:12:23 -0800 (PST) Received: from ?IPv6:2607:fb90:a695:22c1:896a:3453:1d2e:6f84? ([2607:fb90:a695:22c1:896a:3453:1d2e:6f84]) by smtp.gmail.com with ESMTPSA id t3sm6869276pfa.50.2019.02.14.17.12.22 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 14 Feb 2019 17:12:22 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (1.0) Subject: Re: svn commit: r343030 - in head/sys: cam conf dev/md dev/nvme fs/fuse fs/nfsclient fs/smbfs kern sys ufs/ffs vm From: Enji Cooper X-Mailer: iPhone Mail (16C104) In-Reply-To: <20190214233410.GJ83215@FreeBSD.org> Date: Thu, 14 Feb 2019 17:12:21 -0800 Cc: Justin Hibbits , src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <416504EF-13F3-4CEF-89EC-60FBBFF5D29E@gmail.com> References: <201901150102.x0F12Hlt025856@repo.freebsd.org> <20190213192450.32343d6a@ralga.knownspace> <20190214233410.GJ83215@FreeBSD.org> To: Gleb Smirnoff X-Rspamd-Queue-Id: E6A796EA3A X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-6.97 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-0.996,0]; NEURAL_HAM_SHORT(-0.97)[-0.973,0]; REPLY(-4.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0] X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Feb 2019 01:12:25 -0000 > On Feb 14, 2019, at 15:34, Gleb Smirnoff wrote: >=20 > Hi Justin, >=20 > On Wed, Feb 13, 2019 at 07:24:50PM -0600, Justin Hibbits wrote: > J> This seems to break 32-bit platforms, or at least 32-bit book-e > J> powerpc, which has a limited KVA space (~500MB). It preallocates I've > J> seen over 2500 pbufs, at 128kB each, eating up over 300MB KVA, > J> leaving very little left for the rest of runtime. > J>=20 > J> I spent a couple hours earlier today debugging with Mark Johnston, and > J> his consensus is that the vnode_pbuf_zone is too big on 32-bit > J> platforms. Unfortunately I know very little about this area, so can't > J> provide much extra insight, but can readily reproduce the issues I see > J> triggered by this change, so am willing to help where I can. >=20 > Ok, let's roll back to old default on 32-bit platforms and somewhat > reduce the default on 64-bits. >=20 > Can you please confirm that the patch attached works for you? Quick question: why was the value reduced by a factor of 4 on 64-bit pla= tforms? Thanks so much! -Enji=