Re: Improve eviction algorithm in ReorderBuffer
| От | Alvaro Herrera |
|---|---|
| Тема | Re: Improve eviction algorithm in ReorderBuffer |
| Дата | |
| Msg-id | 202312151010.y64axdxuzcvi@alvherre.pgsql обсуждение исходный текст |
| Ответ на | Improve eviction algorithm in ReorderBuffer (Masahiko Sawada <sawada.mshk@gmail.com>) |
| Ответы |
Re: Improve eviction algorithm in ReorderBuffer
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| Список | pgsql-hackers |
On 2023-Dec-12, Masahiko Sawada wrote: > To deal with this problem, I initially thought of the idea (a) > mentioned in the comment; use a binary heap to maintain the > transactions sorted by the amount of changes or the size. But it seems > not a good idea to try maintaining all transactions by its size since > the size of each transaction could be changed frequently. Hmm, maybe you can just use binaryheap_add_unordered and just let the sizes change, and do binaryheap_build() at the point where the eviction is needed. -- Álvaro Herrera Breisgau, Deutschland — https://www.EnterpriseDB.com/ "No necesitamos banderas No reconocemos fronteras" (Jorge González)
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