Mailing-List: contact dev-help@couchdb.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@couchdb.apache.org
Received-SPF: neutral (nike.apache.org: 83.97.50.139 is neither permitted nor
 denied by domain of jan@apache.org)
Message-Id: <7A44764A-D36B-4DAD-B76C-666337DAD7CF@apache.org>
From: Jan Lehnardt <jan@apache.org>
To: dev@couchdb.apache.org
In-Reply-To: <351BC7BB-BB6F-4333-A1E8-7A514121E1B1@googlemail.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
Content-Transfer-Encoding: 7bit
Mime-Version: 1.0 (Apple Message framework v930.3)
Subject: Re: Profiling views
Date: Fri, 12 Jun 2009 00:04:29 +0200
References: <351BC7BB-BB6F-4333-A1E8-7A514121E1B1@googlemail.com>


On 10 Jun 2009, at 18:34, Simon Metson wrote:

> Hi All,
> 	I was wondering if there was any way of profiling views without  
> using a lot of log() statements. The application we are developing  
> needs a lot of analytic information (who's querying what, how long a  
> view takes to generate, if a query comes in that doesn't map to a  
> view etc.) and having some decent timing reports on which views in a  
> design document are taking up time would be really handy, so that we  
> can set/manage update policy, cache policies etc.
> Cheers
> Simon
>
> PS.  My hope is that a lot (all?) of this analytic stuff can be done  
> as a generic couchapp and made publicly available. Will try and keep  
> people posted as things start to materialise...
>

We could add per-view timing info to the runtime stats. Do you feel  
comfortable digging in the erlang and adding the necessary calls?

Cheers
Jan
--