Re: Cost Model
От | neto brpr |
---|---|
Тема | Re: Cost Model |
Дата | |
Msg-id | CALhhvc3XxmjRQ1KrDPj2QgdvH3wGOK18dSLjf1ABpkqez1RxVA@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: Cost Model ("David G. Johnston" <david.g.johnston@gmail.com>) |
Ответы |
Re: Cost Model
Re: Cost Model |
Список | pgsql-hackers |
Dear David
I have read documentation that you send, but it has only sequential page cost and random page cost parameters. What I need, would be a model of custo for Differentiate Read/Write (sequential and random), because in SSDs the reads and writes have different costs. If you or someone knows a patch or other solution, that allows you to configure individual parameters to:
- Sequential reading page cost
- cost of the random reading page
- sequential recording page cost
- Random recording page cost
Best Regards
Neto
2017-12-20 15:35 GMT-02:00 David G. Johnston <david.g.johnston@gmail.com>:
Any comment, hint about it or something, please inform me.The docs contain this - its seem to cover what you describe:David J.
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