From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-2.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1WXDai-0007Fv-3N for bitcoin-development@lists.sourceforge.net; Mon, 07 Apr 2014 17:44:16 +0000 Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.217.177 as permitted sender) client-ip=209.85.217.177; envelope-from=gmaxwell@gmail.com; helo=mail-lb0-f177.google.com; Received: from mail-lb0-f177.google.com ([209.85.217.177]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1WXDah-0004VW-Dg for bitcoin-development@lists.sourceforge.net; Mon, 07 Apr 2014 17:44:16 +0000 Received: by mail-lb0-f177.google.com with SMTP id z11so5055468lbi.36 for ; Mon, 07 Apr 2014 10:44:08 -0700 (PDT) MIME-Version: 1.0 X-Received: by 10.152.234.130 with SMTP id ue2mr22206289lac.0.1396892648736; Mon, 07 Apr 2014 10:44:08 -0700 (PDT) Received: by 10.112.89.68 with HTTP; Mon, 7 Apr 2014 10:44:08 -0700 (PDT) In-Reply-To: References: <5342C833.5030906@gmail.com> <5342D1DB.8060203@monetize.io> <5342D9FA.8080102@monetize.io> Date: Mon, 7 Apr 2014 10:44:08 -0700 Message-ID: From: Gregory Maxwell To: Mike Hearn Content-Type: text/plain; charset=UTF-8 X-Spam-Score: 1.1 (+) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for sender-domain 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (gmaxwell[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 1.2 RCVD_IN_BL_SPAMCOP_NET RBL: Received via a relay in bl.spamcop.net [Blocked - see ] -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 1.5 SF_NO_SPF_SPAM SF_NO_SPF_SPAM X-Headers-End: 1WXDah-0004VW-Dg Cc: Bitcoin Development Subject: Re: [Bitcoin-development] Why are we bleeding nodes? X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 07 Apr 2014 17:44:16 -0000 On Mon, Apr 7, 2014 at 10:40 AM, Mike Hearn wrote: > Actually, I wonder The actual validation isn't really the problem today. The slowness of the IBD is almost exclusively the lack of parallel fetching and the existence of slow peers. And making the signature gate adaptive (and deploying the 6x faster ECDSA code) would improve that future. Go grab sipa's headers first branch, it has no problem saturating a 20mbit/sec pipe syncing up.