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 7686B707 for ; Thu, 23 Jul 2015 17:58:56 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id B9500E9 for ; Thu, 23 Jul 2015 17:58:55 +0000 (UTC) Received: from mfilter26-d.gandi.net (mfilter26-d.gandi.net [217.70.178.154]) by relay3-d.mail.gandi.net (Postfix) with ESMTP id 490A1A80B1 for ; Thu, 23 Jul 2015 19:58:54 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at mfilter26-d.gandi.net Received: from relay3-d.mail.gandi.net ([217.70.183.195]) by mfilter26-d.gandi.net (mfilter26-d.gandi.net [10.0.15.180]) (amavisd-new, port 10024) with ESMTP id 4kS2l4pMFJy3 for ; Thu, 23 Jul 2015 19:58:52 +0200 (CEST) X-Originating-IP: 85.181.106.88 Received: from [192.168.1.2] (x55b56a58.dyn.telefonica.de [85.181.106.88]) (Authenticated sender: thomasv@electrum.org) by relay3-d.mail.gandi.net (Postfix) with ESMTPSA id BCA85A80AA for ; Thu, 23 Jul 2015 19:58:52 +0200 (CEST) Message-ID: <55B12B5C.3000108@electrum.org> Date: Thu, 23 Jul 2015 19:58:52 +0200 From: Thomas Voegtlin User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: bitcoin-dev@lists.linuxfoundation.org References: In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable 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 Subject: Re: [bitcoin-dev] Electrum Server Speed Test 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: Thu, 23 Jul 2015 17:58:56 -0000 There is some room for optimization in the Electrum server: - the utxo database (patricia tree) should be made a binary tree. - the server is written in python, which is slow. I am not too worried about the short-term; a block takes on average 15s to process on my server. For example, here are the last blocks in my log: [23/07/2015-17:11:57] catch_up: block 366604 (0.145s 27.278s) [23/07/2015-17:37:55] catch_up: block 366605 (0.126s 24.453s) [23/07/2015-17:50:23] catch_up: block 366606 (0.133s 21.666s) [23/07/2015-18:03:22] catch_up: block 366607 (0.110s 31.680s) [23/07/2015-18:11:14] catch_up: block 366608 (0.093s 18.269s) [23/07/2015-18:26:38] catch_up: block 366609 (0.115s 27.925s) [23/07/2015-18:29:07] catch_up: block 366610 (0.062s 8.163s) [23/07/2015-18:44:18] catch_up: block 366611 (0.118s 21.294s) [23/07/2015-18:52:14] catch_up: block 366612 (0.075s 12.535s) [23/07/2015-18:58:54] catch_up: block 366613 (0.100s 17.857s) [23/07/2015-19:04:18] catch_up: block 366614 (0.061s 11.174s) [23/07/2015-19:10:31] catch_up: block 366615 (0.064s 10.151s) [23/07/2015-19:11:04] catch_up: block 366616 (0.035s 2.962s) [23/07/2015-19:19:53] catch_up: block 366617 (0.081s 13.125s) [23/07/2015-19:25:23] catch_up: block 366618 (0.037s 8.377s) [23/07/2015-19:28:08] catch_up: block 366619 (0.044s 3.984s) [23/07/2015-19:30:36] catch_up: block 366620 (0.051s 6.105s) [23/07/2015-19:40:05] catch_up: block 366621 (0.058s 14.632s) [23/07/2015-19:42:10] catch_up: block 366622 (0.040s 4.143s) That server is a Hetzner EX40 box, rented for 50 eur/month. Of course if you run the electrum server on a cheap VPS, performance might not be as good. Le 23/07/2015 17:56, Slurms MacKenzie via bitcoin-dev a =E9crit : > Similar to the Bitcoin Node Speed Test, this is a quick quantitative lo= ok at how the Electrum server software handles under load. The Electrum w= allet is extremely popular, and the distributed servers which power it ar= e all hosted by volunteers without budget. The server requires a fully in= dexed Bitcoin Core daemon running, and produces sizable external index in= order to allow SPV clients to quickly retrieve their history.=20 >=20 > 3.9G electrum/utxo > 67M electrum/undo > 19G electrum/hist > 1.4G electrum/addr > 24G electrum/ >=20 > Based on my own logs produced by the electrum-server console, it takes = this server (Xeon, lots of memory, 7200 RPM RAID) approximately 3.7 minut= es per megabyte of block to process into the index. This seems to hold tr= ue through the 10 or so blocks I have in my scroll buffer, the contents o= f blocks seem to be of approximately the same processing load. Continuing= this trend with the current inter-block time of 9.8 minutes, an electrum= -server instance running on modest-high end dedicated server is able to s= upport up to 2.64 MB block sizes before permanently falling behind the ch= ain.=20 > _______________________________________________ > bitcoin-dev mailing list > bitcoin-dev@lists.linuxfoundation.org > https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev >=20