Re: Performance
От | phb07 |
---|---|
Тема | Re: Performance |
Дата | |
Msg-id | 3ed8c6c6-227e-7bf2-65d4-970732a8ab90@apra.asso.fr обсуждение исходный текст |
Ответ на | Re: Performance (Andreas Kretschmer <andreas@a-kretschmer.de>) |
Список | pgsql-performance |
Le 23/02/2018 à 22:20, Andreas Kretschmer a écrit : > > > Am 23.02.2018 um 20:29 schrieb Daulat Ram: >> We have the following requirements in single query or any proper >> solution. Please help on this. >> How many sessions are currently opened. > ask pg_stat_activity, via select * from pg_stat_activity > > >> -and if opened then how many queries have executed on that session. > > Whot? There isn't a counter for that, AFAIK. > > >> -and also we have to trace how much time each query is taking. > > You can use auto_explain for that > >> -and also we have to find the cost of each query. > > the same, auto_explain > > please keep in mind: costs are imaginary. > You can also have a look at PoWA : https://github.com/dalibo/powa > > > Regards, Andreas >
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