[Hawkular-dev] Response time ?

[Thomas Segismont]

Percentiles and standard deviation are needed in general.

Now on a *default* dashboard (this is what you're asking about, 
correct?) I personally like to see avg AND 90 percentile.


Le 19/02/2015 15:52, John Sanda a écrit :
> I like percentiles. Here is a good article that explains why percentiles
> are effective and why they should be used for baselining.
>
> http://apmblog.dynatrace.com/2012/11/14/why-averages-suck-and-percentiles-are-great/
>
>> On Feb 19, 2015, at 9:20 AM, Thomas Heute <theute at redhat.com
>> <mailto:theute at redhat.com>> wrote:
>>
>>
>> What is a useful representation of a response time over a period of time ?
>>
>>     - Average of all the samples ? *2.22s*
>>     - 90/95/99 percentile ? 99% of your requests took less than *2.45s*
>>     - Percentage of valid samples ? *94%* of your requests took less
>> than your 3s acceptable time.
>>     - Apdex ? http://en.wikipedia.org/wiki/Apdex
>>
>> Anything else ? (This is for a quick overview of the health of a system).
>>
>> Thomas
>>
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