Re: Page Checksums + Double Writes
| От | Florian Weimer |
|---|---|
| Тема | Re: Page Checksums + Double Writes |
| Дата | |
| Msg-id | 828vm5f14e.fsf@mid.bfk.de обсуждение исходный текст |
| Ответ на | Page Checksums + Double Writes (David Fetter <david@fetter.org>) |
| Ответы |
Re: Page Checksums + Double Writes
Re: Page Checksums + Double Writes |
| Список | pgsql-hackers |
* David Fetter: > The issue is that double writes needs a checksum to work by itself, > and page checksums more broadly work better when there are double > writes, obviating the need to have full_page_writes on. How desirable is it to disable full_page_writes? Doesn't it cut down recovery time significantly because it avoids read-modify-write cycles with a cold cache? -- Florian Weimer <fweimer@bfk.de> BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99
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