couchdb-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Paul Davis <paul.joseph.da...@gmail.com>
Subject Re: in _stats, how is couchdb.request_time calculated?
Date Thu, 07 Jan 2010 13:57:02 GMT
Looks right to me.

On Thu, Jan 7, 2010 at 1:47 PM, Matteo Caprari <matteo.caprari@gmail.com> wrote:
> Oh well well if you want somethig to do...
>
> Do you think this view is the right way to correctly generate response
> time reports?
>
> http://github.com/mcaprari/couchdb-stats/tree/master/app/views/request_time/
> (despite the fancy name, the key is just date split in its components)
>
> Don't tell me, today I was about to be crushed by a double decker :)
>
> On Thu, Jan 7, 2010 at 1:31 PM, Paul Davis <paul.joseph.davis@gmail.com> wrote:
>> Oh, I see what you're saying. I'll have to dig into it this weekend
>> when I get home. You're actually giving me something worth thinking
>> about as I just trawl through email occasionally to burn time.
>> Internet cafes are a brief respite from trying to walk on the ice
>> rinks that are Britain's sidewalks.
>>
>> Paul Davis
>>
>> On Tue, Jan 5, 2010 at 5:39 PM, Matteo Caprari <matteo.caprari@gmail.com> wrote:
>>> Thanks paul :)
>>>
>>> I swear, I'm not trying to disturb your holiday. But I still don't
>>> understand why couchdb.requests_time sees 2 requests while
>>> httpd.requests sees 3 (it this is what is happening).
>>>
>>> My ass is freezing, hope your holidays are warm :)
>>>
>>> On Tue, Jan 5, 2010 at 4:56 PM, Paul Davis <paul.joseph.davis@gmail.com>
wrote:
>>>> Still just shooting from memory on holiday, but that should mean that
>>>> you only had 2 requests in a 1 second window of the 60 seconds. The
>>>> stats modules work by accumulating values and then aggregating. The
>>>> different range query parameters just show a longer history for each
>>>> endpoint.
>>>>
>>>> HTH,
>>>> Paul Davis
>>>>
>>>> On Tue, Jan 5, 2010 at 12:11 PM, Matteo Caprari
>>>> <matteo.caprari@gmail.com> wrote:
>>>>> Hi.
>>>>>
>>>>> I'm looking at this snippet from _stats?range=60
>>>>>
>>>>> "couchdb": {
>>>>>     "request_time": {
>>>>>            "description": "",
>>>>>            "current": 36.5,
>>>>>            "sum": 36.5,
>>>>>            "mean": 18.25,
>>>>>            "stddev": 22.274,
>>>>>            "min": 2.5,
>>>>>            "max": 34.0
>>>>>        },
>>>>>
>>>>> Looking at how numbers add up, it looks like there have been 2
>>>>> requests, but 'sum' is 3 in http.requests for the same period
>>>>>
>>>>>  "requests": {
>>>>>       "description": "number of HTTP requests",
>>>>>            "current": 3.0,
>>>>>            "sum": 3.0,
>>>>>            "mean": 0.05,
>>>>>            "stddev": 0.287,
>>>>>            "min": 0,
>>>>>            "max": 2
>>>>>        }
>>>>>
>>>>> tnx
>>>>>
>>>>> --
>>>>> :Matteo Caprari
>>>>> matteo.caprari@gmail.com
>>>>>
>>>>
>>>
>>>
>>>
>>> --
>>> :Matteo Caprari
>>> matteo.caprari@gmail.com
>>>
>>
>
>
>
> --
> :Matteo Caprari
> matteo.caprari@gmail.com
>

Mime
View raw message