[Tsung] Percentile calculation
nicolas at niclux.org
Wed Mar 12 11:35:39 CET 2008
philippe vanderstraeten ecrivait le 11.03.2008 13:57:
> I need to get the percetile for transactions. I know that it is not
> possible in TSung to get that since it could fall down performance of
> the controller.
A possibility is to implement a new backend for stats: this backend could
dump all data in a file (with compression enable maybe). It could be useful
to compute everything you want offline . This will not work well with high
load tests, but i don't know what is the limit (10 req/s ? 1000 req/s? 10000 ?)
> So I think to something else. Perhaps it is stupid but it could help a lot:
> My question: Is it possible to add a new parameter to <transaction> tag
> which could be a response time. So, the controller could calculate in
> real time the percentile of transactions
> that are less than this response time ?
Yes, that's possible.
> Is it hard to code ?
> Thanks for your help.
I think it should not be very hard.
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