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From Robert Newson <rnew...@apache.org>
Subject Re: Why are reads from CouchDB so slow? (1.5MB/s or thereabouts)
Date Fri, 23 Mar 2012 12:44:35 GMT
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.

On 23 March 2012 12:41, Jonathan Williamson <jon@netcopy.co.uk> wrote:
> I'm aware of that - but it still doesn't explain the disparity. I was
> using curl for the Nginx tests too...
>
> Is the reason you're asking the question because you believe the
> performance should be much better than I'm seeing?
>
> On Fri, Mar 23, 2012 at 12:39 PM, Robert Newson <rnewson@apache.org> wrote:
>> curl is not a benchmarking tool. Each curl command is opening a new
>> tcp connection, etc. Can you try with httperf, apachebench, tsung,
>> nodeload?
>>
>> B.
>>
>> On 23 March 2012 12:36, Jonathan Williamson <jon@netcopy.co.uk> wrote:
>>> It was just a script that looped over the keys for 1000 documents,
>>> fetching them one after another (using curl).
>>>
>>> On Fri, Mar 23, 2012 at 12:31 PM, Robert Newson <rnewson@apache.org> wrote:
>>>> Using which http benchmarking tool (and exactly which settings)?
>>>>
>>>> On 23 March 2012 12:30, Jonathan Williamson <jon@netcopy.co.uk> wrote:
>>>>> My initial CouchDB test was over 1000 GETs (all to roughly similar
>>>>> documents), taking an average of the total time vs the total amount of
>>>>> data recieved.
>>>>>
>>>>> On Fri, Mar 23, 2012 at 12:26 PM, Robert Newson <rnewson@apache.org>
wrote:
>>>>>> Are you really extrapolating mb/s from a single curl command?
>
>
>
> --
> Jon
>
> Jonathan Williamson
> Systems Architect
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