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Keep track of the optimal number of reserved bytes (by looking at reserve

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byte requests in calls to sqlite3BtreeSetPageSize()) and then change the
reserve byte count to the optimal when doing a VACUUM or when using the
backup API.

FossilOrigin-Name: 28c2b726285ea88b334acfd6390a057d2d244838
This commit is contained in:
drh
2015-02-21 00:19:25 +00:00
parent db222adfd3
commit ad0961b31b
9 changed files with 45 additions and 28 deletions
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2
src/backup.c
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@@ -247,7 +247,7 @@ static int backupOnePage(
** guaranteed that the shared-mutex is held by this thread, handle
** p->pSrc may not actually be the owner. */
int nSrcReserve = sqlite3BtreeGetReserveNoMutex(p->pSrc);
int nDestReserve = sqlite3BtreeGetReserve(p->pDest);
int nDestReserve = sqlite3BtreeGetOptimalReserve(p->pDest);
#endif
int rc = SQLITE_OK;
i64 iOff;