Return-Path: X-Original-To: apmail-couchdb-user-archive@www.apache.org Delivered-To: apmail-couchdb-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 48EAB9BA1 for ; Fri, 23 Mar 2012 12:50:15 +0000 (UTC) Received: (qmail 3178 invoked by uid 500); 23 Mar 2012 12:50:13 -0000 Delivered-To: apmail-couchdb-user-archive@couchdb.apache.org Received: (qmail 3131 invoked by uid 500); 23 Mar 2012 12:50:13 -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 3123 invoked by uid 99); 23 Mar 2012 12:50:13 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 23 Mar 2012 12:50:13 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=5.0 tests=RCVD_IN_DNSWL_LOW,SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (athena.apache.org: local policy) Received: from [209.85.212.52] (HELO mail-vb0-f52.google.com) (209.85.212.52) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 23 Mar 2012 12:50:07 +0000 Received: by vbzb23 with SMTP id b23so2099297vbz.11 for ; Fri, 23 Mar 2012 05:49:46 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type:x-gm-message-state; bh=v2PXvdEorS9D/FFoiySdTZsryodd7VLQgbSzlGCqulA=; b=RIAha+TxMONfDRUmQSeIRvagvQ12pquivNh7QjNMxFpM3fsx9LXnhDnh14oI3CR9W5 qqKMIz11WFOtvkAjiuCmnbNywLN8IQ7ZET+ESOAOcRYjjgyF5UPvScBJg1d401uqbs78 z7H80dI/ngO1Ha0YmzcMbQxEvZFfM1fVXuKSjbPsTVNAHumPpeZzNY0owkcNYTlADO9k zkzJo+g7gAJLK21C2xSENXNxZVq6whPslSUh42o33u1+l0DfR8KZ2c53wEdLpmYei/12 qqY013+9vdz21Vh/vGgS5DtrxZlNDSXe04U6a6nQNMpqzIQuXK4LkhIymDtgU0/ceSLp FjWA== Received: by 10.52.178.129 with SMTP id cy1mr4087095vdc.8.1332506986656; Fri, 23 Mar 2012 05:49:46 -0700 (PDT) MIME-Version: 1.0 Received: by 10.220.156.212 with HTTP; Fri, 23 Mar 2012 05:49:26 -0700 (PDT) In-Reply-To: References: From: Jason Smith Date: Fri, 23 Mar 2012 12:49:26 +0000 Message-ID: Subject: Re: Why are reads from CouchDB so slow? (1.5MB/s or thereabouts) To: user@couchdb.apache.org Content-Type: text/plain; charset=UTF-8 X-Gm-Message-State: ALoCoQn/JIUqSsJyi1gqygj5lRHN5HE7u4qNOpIqAoOTe45mc7Gw0ptM+eirlRNID9nPdp3ygbq0 X-Virus-Checked: Checked by ClamAV on apache.org That is a good question. I would also like to see a performance breakdown of where couch spends its time handling queries. Some kind of profiler report. On Fri, Mar 23, 2012 at 12:47 PM, Jonathan Williamson wrote: > I'm not claiming a performance issue at all, I was asking why :) > > If they are slow for a reason then so be it, we'll find a way to work > around it. It's clear from the testing I've done what kind of > throughput we can get for our specific use case. > > On Fri, Mar 23, 2012 at 12:44 PM, Robert Newson wrote: >> I can confirm that you won't get nginx's sendfile level of >> performance, if that helps at all. However, if we're to investigate a >> performance issue I want to be sure that an issue has been competently >> discovered. The minimum for me would be seeing results from a trusted >> benchmarking tool. >> >> B. -- Iris Couch