Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1SZOQG-00020A-8b for bitcoin-development@lists.sourceforge.net; Tue, 29 May 2012 15:33:24 +0000 Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.216.52 as permitted sender) client-ip=209.85.216.52; envelope-from=gmaxwell@gmail.com; helo=mail-qa0-f52.google.com; Received: from mail-qa0-f52.google.com ([209.85.216.52]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1SZOQA-0007vk-TP for bitcoin-development@lists.sourceforge.net; Tue, 29 May 2012 15:33:24 +0000 Received: by qabj34 with SMTP id j34so1865354qab.11 for ; Tue, 29 May 2012 08:33:13 -0700 (PDT) MIME-Version: 1.0 Received: by 10.224.44.136 with SMTP id a8mr12456759qaf.34.1338305593250; Tue, 29 May 2012 08:33:13 -0700 (PDT) Received: by 10.229.55.83 with HTTP; Tue, 29 May 2012 08:33:13 -0700 (PDT) In-Reply-To: References: Date: Tue, 29 May 2012 11:33:13 -0400 Message-ID: From: Gregory Maxwell To: Jeff Garzik Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -1.6 (-) 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 -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 0.0 AWL AWL: From: address is in the auto white-list X-Headers-End: 1SZOQA-0007vk-TP Cc: Bitcoin Development Subject: Re: [Bitcoin-development] Punishing empty blocks? 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: Tue, 29 May 2012 15:33:24 -0000 On Thu, May 24, 2012 at 12:33 PM, Jeff Garzik wrote: > There appears to be some non-trivial mining power devoted to mining > empty blocks. In the last 2016 blocks, as I write this, there are only 35 1 txn blocks. This is about 1.73%, which wouldn't be surprising just from timing alone. Moreover, a fair amount (I didn't measure the percentage) appear to be mined by Eligius=E2=80=94 Luke does some clever pre-computatio= n of the hash tree for faster distribution right after new blocks. Resources expended on fancy (and potentially risky) techno-economic hacks to discourage empty blocks would probably be better spent writing very fast transaction tree generating code. Can we kill this thread now?