From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-x231.google.com (mail-ig0-x231.google.com [IPv6:2607:f8b0:4001:c05::231]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id C6C0E21F1E7 for ; Wed, 22 Apr 2015 14:46:57 -0700 (PDT) Received: by igbpi8 with SMTP id pi8so3628070igb.0 for ; Wed, 22 Apr 2015 14:46:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:subject:from:to:cc:date:in-reply-to:references :content-type:mime-version:content-transfer-encoding; bh=kKF/XpTsjSjl2v+X4dupRnrN5ZCZVMzFSTmfUMlxxOY=; b=WxYUeJ2rgIVebDkuVXFu28mdLx8A+sM8RX7u2VGF/oHLxzuIRBu5M6d2ZSxAoZnRdR tre+nNwGp2sVRWTnuNPRq7JTYd5t+TFdNt1s4uR14KXtyeVNCROHCs4EVPERQoh3Zukr kFcLg5INyxMdGgWYvsAkou7NHbzlkwnfyyvKmXcMA+JJkKvJAldYQ8SZJC9zZGDFUDcx IwcX8EIbW+dsxw4YpMTpateyNxuIY6/oB/1G6OrArS90JTkd5bX+QJg1m/8aVHHb+LxD cqh5IIiSTvvhKUp23gyoyBQylxLzh18nn3NejA4CoObqoVd8KGyM++zbMr1bfJ7+DeXn O0Bw== X-Received: by 10.50.35.195 with SMTP id k3mr7698257igj.11.1429739216789; Wed, 22 Apr 2015 14:46:56 -0700 (PDT) Received: from [172.26.55.207] ([172.26.55.207]) by mx.google.com with ESMTPSA id j2sm3946951ioi.8.2015.04.22.14.46.55 (version=TLSv1.2 cipher=AES128-GCM-SHA256 bits=128/128); Wed, 22 Apr 2015 14:46:56 -0700 (PDT) Message-ID: <1429739215.18561.151.camel@edumazet-glaptop2.roam.corp.google.com> From: Eric Dumazet To: Rick Jones Date: Wed, 22 Apr 2015 14:46:55 -0700 In-Reply-To: <55380D28.5080100@hp.com> References: <20150422191056.9C7AC406057@ip-64-139-1-69.sjc.megapath.net> <1429736552.18561.144.camel@edumazet-glaptop2.roam.corp.google.com> <55380D28.5080100@hp.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Cc: Hal Murray , bloat Subject: Re: [Bloat] SO_SNDBUF and SO_RCVBUF X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Apr 2015 21:47:26 -0000 On Wed, 2015-04-22 at 14:05 -0700, Rick Jones wrote: > On 04/22/2015 02:02 PM, Eric Dumazet wrote: > > Yeah, the real nice thing is TCP_NOTSENT_LOWAT added in linux-3.12 > > Don't go telling Dave about that, he wants me to put too much into > netperf as it is!-) Note that one can also set a sysctl, in case netperf author does not want to change its baby ;) echo 131072 >/proc/sys/net/ipv4/tcp_notsent_lowat