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Easy to Install Software (Disk Provided) Simple Plug and play. = Asic-technologies.com = From owner-freebsd-net@FreeBSD.ORG Fri Aug 16 16:59:31 2013 Return-Path: Delivered-To: net@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 ESMTP id 9327B508; Fri, 16 Aug 2013 16:59:31 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-we0-x22c.google.com (mail-we0-x22c.google.com [IPv6:2a00:1450:400c:c03::22c]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id CB2BE2418; Fri, 16 Aug 2013 16:59:30 +0000 (UTC) Received: by mail-we0-f172.google.com with SMTP id t61so1856762wes.17 for ; Fri, 16 Aug 2013 09:59:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=jDlv/RFR8E2jueVSB36eBU7JjgrTChPjSgLaGZ3L3+4=; b=Sl6mhd49glKP1fuuYoWC+G4pySKc8/UgqSaMGdwUsaj2pox1r3orDFY5QdWqfjpJOV 3FrHnPVeXtrdHXVmaJc7sqAPG1haZGXvsXGNw018WVTCqVI7ehhbQUwqfNCCzP5l7dfF iBVbstC20QCz3QTIz4nRzSTJEf+0+MsomAQbGjm/9DiyPmFnYxMksaEt3PyOTtkWbS4e tQVpCIldg7Fz75ukkAKByH1HNNs1apHfQyt7TP3lluTqAf/wrG2cjbEFjKRe6Z3hgzic jm6Abp/vrClcKIQuXznm/tmKa96Zgv4YivoUS9j9+RpsBZme21HVhypf/bmfHUgYOk17 SsRQ== MIME-Version: 1.0 X-Received: by 10.194.94.137 with SMTP id dc9mr1872442wjb.38.1376672369219; Fri, 16 Aug 2013 09:59:29 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.217.116.136 with HTTP; Fri, 16 Aug 2013 09:59:29 -0700 (PDT) In-Reply-To: References: <520A6D07.5080106@freebsd.org> <520AFBE8.1090109@freebsd.org> <520B24A0.4000706@freebsd.org> <520B3056.1000804@freebsd.org> <20130814102109.GA63246@onelab2.iet.unipi.it> <587579055.20130814154713@serebryakov.spb.ru> Date: Fri, 16 Aug 2013 09:59:29 -0700 X-Google-Sender-Auth: 3Fq6pHFMabLHSX8_nd2XWBNFuJk Message-ID: Subject: Re: it's the output, not ack coalescing (Re: TSO and FreeBSD vs Linux) From: Adrian Chadd To: Vijay Singh Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: Lawrence Stewart , Lev Serebryakov , Luigi Rizzo , FreeBSD Net X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Aug 2013 16:59:31 -0000 Luigi, Did you ever publish your patches or methodology for doing sampling? -adrian On 14 August 2013 21:00, Vijay Singh wrote: > Is that what FLOWTABLE does? Also we need a mechanism to record time spent > at various layers in the stack. Luigi has used his own methods but we're > lacking something more generic. At work we have some crude tools that use > mcount information to indirectly measure costs but they are not reliable > and only provide partial information. > > Sent from my iPhone > > On Aug 14, 2013, at 11:11 AM, Adrian Chadd wrote: > > > On 14 August 2013 04:47, Lev Serebryakov wrote: > > > > > >> And we should invalidate this info on ARP/route changes, or connection > >> will be lost in such cases, am I right?.. So, on each such event code > >> should look into all sockets and check, if routing/ARP information is > >> still > >> valid for them. Or we should store lists of sockets in routing and ARP > >> tables... I don't know, what is worse. > > > > .. or per-CPU copies of the ARP table.. ? > > > > > > > > -adrian > > _______________________________________________ > > freebsd-net@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-net > > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >