From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 960BAEE5 for ; Fri, 28 Aug 2015 03:02:49 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from s47.web-hosting.com (s47.web-hosting.com [199.188.200.16]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 098D7A7 for ; Fri, 28 Aug 2015 03:02:48 +0000 (UTC) Received: from localhost ([::1]:36488 helo=server47.web-hosting.com) by server47.web-hosting.com with esmtpa (Exim 4.85) (envelope-from ) id 1ZV9wF-00494s-AF; Thu, 27 Aug 2015 23:02:47 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Date: Thu, 27 Aug 2015 23:02:47 -0400 From: jl2012@xbt.hk To: Jeff Garzik In-Reply-To: References: Message-ID: <038c418c354b4b4559137652282e88b4@xbt.hk> X-Sender: jl2012@xbt.hk User-Agent: Roundcube Webmail/1.0.5 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - server47.web-hosting.com X-AntiAbuse: Original Domain - lists.linuxfoundation.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - xbt.hk X-Get-Message-Sender-Via: server47.web-hosting.com: authenticated_id: jl2012@xbt.hk X-Source: X-Source-Args: X-Source-Dir: X-From-Rewrite: unmodified, already matched X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Cc: Bitcoin development mailing list Subject: Re: [bitcoin-dev] Questiosn about BIP100 X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Bitcoin Development Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Aug 2015 03:02:49 -0000 Mode could be ruled out immediately. Just consider this: 34% 8MB, 33% 1.5MB, 33% 1.2MB I personally believe the median is the most natural and logical choice. 51% of miners can always force the 49% to follow the simple majority choice through a 51% attack. Using median will eliminate the incentive to 51% attack due to this reason. The incentive to 51% attack will exist when you use any value other than 50-percentile. The further it is from 50, the bigger the incentive. Having said that, I don't think it is an absolutely bad idea to use a value other than 50-percentile. The exact value is debatable. However, if you use something other than median, you should make it symmetrical. For example, the block size will increase if the 20-percentile is bigger than the current limit, and the block size will decrease if the 80-percentile is smaller than the current limit. Jeff Garzik via bitcoin-dev 於 2015-08-27 16:49 寫到: > 20th percentile, though there is some argument to take the 'mode' of > several tranches > > On Thu, Aug 27, 2015 at 11:07 AM, Andrew C wrote: > >> I have been reading the pdf and one thing I can't figure out is what >> you mean by "most common floor". Is that the smallest block size >> that has a vote or the block size with the most votes or something >> else? >> >> On Mon, Aug 24, 2015 at 10:40 AM Jeff Garzik >> wrote: >> >> Great questions. >> >> - Currently working on technical BIP draft and implementation, >> hopefully for ScalingBitcoin.org. Only the PDF is publicly >> available as of today. >> - Yes, the initial deployment is in the same manner as size votes. >> >> On Fri, Aug 21, 2015 at 7:38 PM, Andrew C via bitcoin-dev >> wrote: >> >> Hi all, >> >> Is there any client or code that currently implements BIP 100? And >> how will it be deployed? WIll the initial fork be deployed in the >> same manner that the max block size changes are deployed described >> in the bip? >> >> Thanks >> >> _______________________________________________ >> bitcoin-dev mailing list >> bitcoin-dev@lists.linuxfoundation.org >> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev [1] > > > > Links: > ------ > [1] https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev > > _______________________________________________ > bitcoin-dev mailing list > bitcoin-dev@lists.linuxfoundation.org > https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev