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Small performance improvement in sqltie3WalFindFrame().

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FossilOrigin-Name: 52013cad0e6ce2d694f25e2984a76d438cef724f0e07c8bb9d3dce8a3caf4350
This commit is contained in:
drh
2018-02-21 01:05:37 +00:00
parent 4f4e49a98b
commit 8d3e15eec4
3 changed files with 9 additions and 8 deletions
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3
src/wal.c
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@@ -2882,7 +2882,7 @@ int sqlite3WalFindFrame(
** table after the current read-transaction had started.
*/
iMinHash = walFramePage(pWal->minFrame);
for(iHash=walFramePage(iLast); iHash>=iMinHash && iRead==0; iHash--){
for(iHash=walFramePage(iLast); iHash>=iMinHash; iHash--){
volatile ht_slot *aHash; /* Pointer to hash table */
volatile u32 *aPgno; /* Pointer to array of page numbers */
u32 iZero; /* Frame number corresponding to aPgno[0] */
@@ -2905,6 +2905,7 @@ int sqlite3WalFindFrame(
return SQLITE_CORRUPT_BKPT;
}
}
if( iRead ) break;
}
#ifdef SQLITE_ENABLE_EXPENSIVE_ASSERT