From user-return-15536-apmail-couchdb-user-archive=couchdb.apache.org@couchdb.apache.org Wed Mar 30 10:10:47 2011 Return-Path: Delivered-To: apmail-couchdb-user-archive@www.apache.org Received: (qmail 18873 invoked from network); 30 Mar 2011 10:10:47 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 30 Mar 2011 10:10:47 -0000 Received: (qmail 72817 invoked by uid 500); 30 Mar 2011 10:10:45 -0000 Delivered-To: apmail-couchdb-user-archive@couchdb.apache.org Received: (qmail 72702 invoked by uid 500); 30 Mar 2011 10:10:45 -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 72682 invoked by uid 99); 30 Mar 2011 10:10:45 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 30 Mar 2011 10:10:45 +0000 X-ASF-Spam-Status: No, hits=1.8 required=5.0 tests=FREEMAIL_FROM,FREEMAIL_REPLY,RCVD_IN_DNSWL_LOW,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of rasmussen.bryan@gmail.com designates 209.85.210.180 as permitted sender) Received: from [209.85.210.180] (HELO mail-iy0-f180.google.com) (209.85.210.180) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 30 Mar 2011 10:10:40 +0000 Received: by iyf40 with SMTP id 40so1550470iyf.11 for ; Wed, 30 Mar 2011 03:10:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type:content-transfer-encoding; bh=mPFfJ85mYQ8JHPC3JASJAD6WrSWMK196A+0N0DdjLrM=; b=F1TQ1pFyg3RlWuz0EaetA3xulpYY5ZkTnXM+4iUNkY5ZWXXfClvb2+mWTBMnR0gLtW 2vRKJxStdJLbq4Qa7EoZA3OwNpVTtTQuqgg5cETJCi74/RgzdAM8QYbQABj/G3YIKAGM L1C6I6D9LCW4a1v0CdzsW7OOyDfK+9jxrnLb8= 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:content-transfer-encoding; b=VOl99Bs9B+aqRrVM/jW8Gskakl7I8nBw2CaD6VTWu8nzuMJ+fNCwYIZSb+IykTf05f PyVDDJV18x5q8yOODlajj7mcZwfqlT0tF0w2PzoH0qQAbiXvsqudQvTWyYNUE6cYgVXS OPQlxn2Owk5EgouH+XIIPRLAaK2yGxSDnX39U= MIME-Version: 1.0 Received: by 10.43.55.84 with SMTP id vx20mr932297icb.49.1301479819717; Wed, 30 Mar 2011 03:10:19 -0700 (PDT) Received: by 10.42.228.10 with HTTP; Wed, 30 Mar 2011 03:10:19 -0700 (PDT) In-Reply-To: References: <95002D3F-8F13-4977-A640-446AF2745DBD@adesso.de> <1301469307.21215.199.camel@meerkat.green.sophos> Date: Wed, 30 Mar 2011 12:10:19 +0200 Message-ID: Subject: Re: Surprisingly high CPU load From: bryan rasmussen To: user@couchdb.apache.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable How do people deal with this issue in production environments? Just adding more CPUs? Any optimizations that one commonly sees? Thanks, Bryan Rasmussen On Wed, Mar 30, 2011 at 11:54 AM, Filipe David Manana wrote: > On Wed, Mar 30, 2011 at 8:15 AM, Paul Hirst wrote= : >> >> You might find this an interesting read >> https://issues.apache.org/jira/browse/COUCHDB-1092 >> >> The performance improvements discussed in that bug sound extremely >> appealing but the discussion has gone quiet which is a great shame. I'm >> still hoping something comes of it. > > It probably will, the only drawback identified in the discussion of > that ticket is not that hard to fix. > > Also, before moving that one forward, I've been trying several other > performance and disk saving approaches and measure the gains of each > one. In the end we'll see. Maybe that one gets dropped and something > better or equivalent comes out. > >> >> >> >> Sophos Limited, The Pentagon, Abingdon Science Park, Abingdon, OX14 3YP,= United Kingdom. >> Company Reg No 2096520. VAT Reg No GB 991 2418 08. >> > > > > -- > Filipe David Manana, > fdmanana@gmail.com, fdmanana@apache.org > > "Reasonable men adapt themselves to the world. > =C2=A0Unreasonable men adapt the world to themselves. > =C2=A0That's why all progress depends on unreasonable men." >