From owner-svn-src-all@FreeBSD.ORG Fri Jan 10 01:58:19 2014 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id D06083B7; Fri, 10 Jan 2014 01:58:19 +0000 (UTC) Received: from mail-qc0-x231.google.com (mail-qc0-x231.google.com [IPv6:2607:f8b0:400d:c01::231]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 3EE151634; Fri, 10 Jan 2014 01:58:19 +0000 (UTC) Received: by mail-qc0-f177.google.com with SMTP id m20so3411517qcx.8 for ; Thu, 09 Jan 2014 17:58:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:cc:subject:message-id:in-reply-to:references :mime-version:content-type; bh=v05ozqKsmzZoDFKkQzITL0TNA2QCSMpNc2FzdPtU5kM=; b=RJNtWlme1UoTTM/66YhBVSen9ENbFvtk/+PGJkhyYc6zzMLZcrVocnkXBF1bLF/Puw NcBni7Wg/sSX37dbx3ki9gu6WLkqgh7xh/M/MGQswZuPouz/NVC5Cgl9d+nXi/tdIm96 KcW8PjdYpATjUcHHLaLb7nq4z6G7iugfh7c1mqsb6i0+OSFcwV4N+q/lEU7B8BHspkKE Ee3avuqsLU3or5jrqGbTrBZV9YaC83cEgpCLVXY8TjpLfsScuVlhKnBbouF+gCPgz8hz jjomfn/PWL2U2QEROSRk08U568DY44jzY/mIFDks2RD9DuADGiaLnQCy7gG7Wdi4Xz2Q pUSg== X-Received: by 10.229.179.69 with SMTP id bp5mr1762981qcb.17.1389319097824; Thu, 09 Jan 2014 17:58:17 -0800 (PST) Received: from kan.dyndns.org (c-24-63-226-98.hsd1.ma.comcast.net. [24.63.226.98]) by mx.google.com with ESMTPSA id o5sm10372659qeg.2.2014.01.09.17.58.15 for (version=SSLv3 cipher=RC4-SHA bits=128/128); Thu, 09 Jan 2014 17:58:16 -0800 (PST) Date: Thu, 9 Jan 2014 20:58:08 -0500 From: Alexander Kabaev To: Alexander Motin Subject: Re: svn commit: r260486 - head/etc/defaults Message-ID: <20140109205808.1d734036@kan.dyndns.org> In-Reply-To: <52CECE57.4040002@FreeBSD.org> References: <201401091555.s09Fttju004938@svn.freebsd.org> <52CEC79F.2090708@FreeBSD.org> <52CECE57.4040002@FreeBSD.org> X-Mailer: Claws Mail 3.9.3 (GTK+ 2.24.22; amd64-portbld-freebsd11.0) MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; boundary="Sig_/JJ5utv9UIqr4DQbroZ/XxbK"; protocol="application/pgp-signature" Cc: "svn-src-head@freebsd.org" , Adrian Chadd , "src-committers@freebsd.org" , "svn-src-all@freebsd.org" X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Jan 2014 01:58:19 -0000 --Sig_/JJ5utv9UIqr4DQbroZ/XxbK Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Thu, 09 Jan 2014 18:29:11 +0200 Alexander Motin wrote: > On 09.01.2014 18:18, Adrian Chadd wrote: > > Depends if you're thinking locally or globally. > > > > Locally - for nfs? not a big deal. > > > > Globally - NFS, ZFS, GELI, geom/cam, NIC, etc.. suddenly your > > machine could default to having a couple thousand worker threads > > just for a HBA and a 10GE NIC. That's a little nuts. >=20 > So, what is your point? Each NFS thread (unlike GEOM or CAM) executes=20 > only _one_ request at a time. Would you like your > 128-core/many-spindle system executed only 4 synchronous requests at > a time? >=20 I certainly do not want to have 8 * ncpu threads hanging around. While said extra CPUs were all but forced on me by Intel innovators, my NFS workloads hardly did scale at the same pace over the same time period. --=20 Alexander Kabaev --Sig_/JJ5utv9UIqr4DQbroZ/XxbK Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (FreeBSD) iD8DBQFSz1O2Q6z1jMm+XZYRAhd6AJ9FsbEyAmuhswm+Du3HgfHVY+GqFwCfSvWF M9YfIsdc+b9bTy6cDhY2M1w= =wqyJ -----END PGP SIGNATURE----- --Sig_/JJ5utv9UIqr4DQbroZ/XxbK--