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Correct the problem which triggered the rollback in [7eec635562f6]: an incorrect default db page size (not a multiple of 512 bytes).

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FossilOrigin-Name: e06e490c240aa56b616e6f0380b5d08abf06f35f9e683e5150c5ac464eae9e55
This commit is contained in:
stephan
2022-12-02 08:51:22 +00:00
parent 20f0128acc
commit 1078ee0959
3 changed files with 14 additions and 11 deletions
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11
ext/wasm/api/sqlite3-wasm.c
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@@ -66,12 +66,15 @@
#endif
#if !defined(SQLITE_DEFAULT_PAGE_SIZE)
/*
** OPFS performance is improved with a page size of 8kb instead of
** 4kb. Performance with 16kb is equivalent to 8kb.
** OPFS performance is improved by approx. 12% with a page size of 8kb
** instead of 4kb. Performance with 16kb is equivalent to 8kb.
**
** However... kvvfs doesn't work at all with 8kb!
** Performance difference of kvvfs with a page size of 8kb compared to
** 4kb, as measured by speedtest1 --size 4, is indeterminate:
** measurements are all over the place either way and not
** significantly different.
*/
# define SQLITE_DEFAULT_PAGE_SIZE 4096 /* 8196 */
# define SQLITE_DEFAULT_PAGE_SIZE 8192
#endif
#ifndef SQLITE_DEFAULT_UNIX_VFS
# define SQLITE_DEFAULT_UNIX_VFS "unix-none"