Benching Queries

Поиск
Список
Период
Сортировка
От Jonathan Vanasco
Тема Benching Queries
Дата
Msg-id 78B2522B-7B2C-4C92-ABB2-4DE079FFACCC@2xlp.com
обсуждение исходный текст
Ответ на Re: Postgres tcp_keepalive_xxxx parameters.  (José Luis Rando Calvo<jose.luis.rando.calvo@ericsson.com>)
Список pgsql-general
Does anyone have a good solution for benching queries under various conditions, and collecting the EXPLAIN data ?

I looked at pgbench, but it doesn't seem to be what I want.

My situation is this-

- For a given query, there are 3-5 different ways that I can run it.
- Each form of the query has a completely different execution plan and query time, often using different indexes.
- The same query runs differently on first query, vs subsequent queries (when the indexes/tables are already in
memory).

My goal is to find an overall balance of query time (cold-start vs in-memory) and indexes (number of).



В списке pgsql-general по дате отправления:

Предыдущее
От: José Luis Rando Calvo
Дата:
Сообщение: Re: Postgres tcp_keepalive_xxxx parameters.
Следующее
От: "Andrus"
Дата:
Сообщение: Creating index on concatenated char columns fails is Postgres 9 (regression)