Den 2020-03-08 kl. 23:16, skrev liviuslivius liviusliv...@poczta.onet.pl [firebird-support]: > Hi > > I do not know which rel notes have you read but this one is quite good > about > > https://firebirdsql.org/rlsnotesh/rnfb25-fbconf-fscache.html
Yes, that's the one. A few things are unclear to me. 1. What does " allow the page cache to be duplicated to the filesystem cache" mean? Does it mean that the same pages are kept in both FB's page buffer and in the file system cache? What's the alternative? Is it that FB prevents Windows from keeping DB pages in the file system cache? What are the pros and cons of either alternative? 2. OK, so the threshold compared to page buffer size determines if file system cache is used or not. But how do different threshold values affect things apart from that? I.e. if page buffer size is X, and threshold is changed from Y to Z where both Y and Z > X, what happens? Similarly, if both Y and Z < X, what happens? Nothing? It's just a threshold with yes/no effect? FileSystemCacheSize controls the other aspects? Regards, Kjell [Non-text portions of this message have been removed]
