On 11/09/2017 08:59 AM, advancenOO wrote:
I am trying to understand how SQLITE_DEFAULT_MMAP_SIZE works and I think db
files can use MMAP by using this compilation option, as Sqlite3PagerGet()
mapped to getPageMMap().
And I know "/the current VFS implementations use a mmapped file for the
wal-index/"
But is there a way that wal-files can use MMAP? Why not? As I guess it can
improve the IO performance in WAL mode.
No way to do that right now. It would require a VFS interface change I
think.
Dan.
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