Re: Buffer Requests Trace
| От | Lucas Lersch |
|---|---|
| Тема | Re: Buffer Requests Trace |
| Дата | |
| Msg-id | CAGR3jZB0kv717YY61bMuoyjKQGymJnnNZ_QT=xwpQ0ZeioyN-w@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Buffer Requests Trace (Stephen Frost <sfrost@snowman.net>) |
| Ответы |
Re: Buffer Requests Trace
|
| Список | pgsql-hackers |
I see this... but ReleaseBuffer() simply decrements the reference count of page the buffer currently holds. Assuming that a ReadBuffer() - ReleaseBuffer() pattern is used for interacting with the shared_buffers, there will be a ReleaseBuffer() call for any page (heap or index) "loaded" into the shared_buffers.
On Tue, Oct 14, 2014 at 7:21 PM, Stephen Frost <sfrost@snowman.net> wrote:
* Lucas Lersch (lucaslersch@gmail.com) wrote:
> Aren't heap and index requests supposed to go through the shared buffers
> anyway?
Sure they do, but a given page in shared_buffers can be used over and
over again for different heap and index pages..
Thanks,
Stephen
Lucas Lersch
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