From owner-freebsd-net@FreeBSD.ORG Thu Feb 5 20:29:07 2015 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 4C9231FE for ; Thu, 5 Feb 2015 20:29:07 +0000 (UTC) Received: from mail-ob0-f173.google.com (mail-ob0-f173.google.com [209.85.214.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 12BCB6E0 for ; Thu, 5 Feb 2015 20:29:06 +0000 (UTC) Received: by mail-ob0-f173.google.com with SMTP id uy5so9261198obc.4 for ; Thu, 05 Feb 2015 12:29:05 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:content-type:mime-version:subject:from :in-reply-to:date:cc:content-transfer-encoding:message-id:references :to; bh=sdKZVQxnj42CrV1RWFJb8hSwvnFm17kawPYjchRimsk=; b=W12/R0ZdJIHHZ2sENPDAyIvasIWuRAKhXhXPINU//jtinkK9OxKCW1fILXiS/OxN0g xAyFnM3BqlLbTlvyWRYUjbYMGNcXntTWl1jj8976lNBCXZQK5xXdYaOzmm3rpNc8lNWK Q/ovqVJvkVtOK82y76V+hStOiS/Ny49EhD6tR7nFifoZBInR5T0WWlEEmcshzsixvEqt ec7aCM/olcs1BhQS6PQidPhYgYaaoitLSDScYVI8F86W5slhhqobSpE5fZRhw5+MaQFX mPMRWJeBkLOWBsN+ulk7h8CCZj9jsFFK9dZPmXomAAPuKJzis/f84kcJ7H/YPNnO1vUX Jh6A== X-Gm-Message-State: ALoCoQkK5sBTlb8XfFDtzfXmb7iGUxlJoWZA363wOnyLCepWhsycjQPtQelV2tHSArAmlht6L+kA X-Received: by 10.182.19.167 with SMTP id g7mr3599737obe.75.1423168145709; Thu, 05 Feb 2015 12:29:05 -0800 (PST) Received: from ?IPv6:2610:160:11:33:5d27:42e6:427e:9a76? ([2610:160:11:33:5d27:42e6:427e:9a76]) by mx.google.com with ESMTPSA id s10sm136170oeo.3.2015.02.05.12.29.04 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 05 Feb 2015 12:29:05 -0800 (PST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2070.6\)) Subject: Re: Silly experiments with netisr From: Jim Thompson In-Reply-To: <20150205202314.GD69733@strugglingcoder.info> Date: Thu, 5 Feb 2015 14:29:04 -0600 Content-Transfer-Encoding: quoted-printable Message-Id: <747BECC7-98A8-4EA4-AFE1-4B1B7039862C@netgate.com> References: <54D3BE67.8060502@ignoranthack.me> <752D84FB-0B65-47CF-973A-91C3697A28DC@yahoo.com> <20150205202314.GD69733@strugglingcoder.info> To: hiren panchasara X-Mailer: Apple Mail (2.2070.6) Cc: FreeBSD Net , Scott Long X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Feb 2015 20:29:07 -0000 > On Feb 5, 2015, at 2:23 PM, hiren panchasara = wrote: >=20 > On 02/05/15 at 12:31P, Scott Long via freebsd-net wrote: >>=20 >>=20 >> Welcome to our workload. Granted, we don?t involve pf, but the = majority of our CPU processing right now is spent in TCP (with the rest = being spent in the VM, but that?s a different matter). >>=20 >> FWIW, Randall has some optimizations in this area of the stack. They = aren?t huge, IIRC they?re only a few percent, but worth looking at. > Scott, >=20 > It'd be great if you guys can share it. And yes, any small persentage = would > help :-) As long as it=E2=80=99s not at the expense of forwarding.