Return-Path: Delivered-To: apmail-couchdb-user-archive@www.apache.org Received: (qmail 49875 invoked from network); 22 Feb 2010 12:28:48 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 22 Feb 2010 12:28:48 -0000 Received: (qmail 37380 invoked by uid 500); 22 Feb 2010 12:28:46 -0000 Delivered-To: apmail-couchdb-user-archive@couchdb.apache.org Received: (qmail 37330 invoked by uid 500); 22 Feb 2010 12:28:46 -0000 Mailing-List: contact user-help@couchdb.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@couchdb.apache.org Delivered-To: mailing list user@couchdb.apache.org Received: (qmail 37320 invoked by uid 99); 22 Feb 2010 12:28:46 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 22 Feb 2010 12:28:46 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=10.0 tests=SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of fabio.forno@gmail.com designates 72.14.220.153 as permitted sender) Received: from [72.14.220.153] (HELO fg-out-1718.google.com) (72.14.220.153) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 22 Feb 2010 12:28:38 +0000 Received: by fg-out-1718.google.com with SMTP id l26so621854fgb.5 for ; Mon, 22 Feb 2010 04:28:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=LqMqHweSuT9TV7xDqaaiJogIWj/2JqDgPwGdigTKE7g=; b=vnP7nnn2dBJC90b3hrooMZSxf57mXLh85HaA7Rkm99CXoHOEWd7Xh4AYz4nmwiv83A IxSe0Tw8iH+7Isnx9ooC87YDkvcjn64K8a7R0BPdbD8Azyx6uiuQsvJ2kplrMA5ecgSW KH9y6u1GU70qcs3BIyzNSA2XWwz2Za3k2EByI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=ORDbitmyaqM4rCu2XjWu2MtGHBE/mIiZZNplCW9amsYXJd++/UQsJnJx855aFwYWlv wXw/exJWbPEdDvnmyHwv00/uj/+Zq4GywqoX5vs5ttZ1CyuvdqybOZXGpaFLlBNAJ3ox Ef5uaeJVaWt192yNs9CIe+6frdsJvbZQqO7EY= MIME-Version: 1.0 Received: by 10.87.55.31 with SMTP id h31mr4469922fgk.32.1266841698270; Mon, 22 Feb 2010 04:28:18 -0800 (PST) In-Reply-To: References: <2fd53c3a1002220300s293ee858r9400dfa4b07f9b3a@mail.gmail.com> Date: Mon, 22 Feb 2010 13:28:17 +0100 Message-ID: <2fd53c3a1002220428j73e0086w3a83011a836f776f@mail.gmail.com> Subject: Re: key entropy and view performance From: Fabio Forno To: user@couchdb.apache.org Content-Type: text/plain; charset=ISO-8859-1 X-Virus-Checked: Checked by ClamAV on apache.org On Mon, Feb 22, 2010 at 1:24 PM, Sebastian Cohnen wrote: > Hi Fabio, > > this sounds "normal" to me, since couch views use btrees and (high) entropy hurts btree's update/insert performance. Therefore I guess that a valid alternative is to emit only scores and make specialized views for any resource type. -- Fabio Forno, Ooros srl jabber id: ff@jabber.bluendo.com