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Overview
Comment: | Three times faster sqlite3SrcListAppend() in the common case by avoiding the call to sqlite3SrcListEnlarge() for the first allocation. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
0ea2762f1d8f6a93ae2ee3b7b835927a |
User & Date: | drh 2016-12-14 11:14:13.907 |
Context
2016-12-14
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11:23 | Adjust the unix makefiles so that "make test" runs fuzzcheck prior to even attempting to build the other test programs. (check-in: bb48f7a559 user: drh tags: trunk) | |
11:14 | Three times faster sqlite3SrcListAppend() in the common case by avoiding the call to sqlite3SrcListEnlarge() for the first allocation. (check-in: 0ea2762f1d user: drh tags: trunk) | |
10:30 | Fix the optimization that prevents writing freelist pages to the journal. (check-in: 6aa9b26544 user: drh tags: trunk) | |
Changes
Changes to src/build.c.
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3732 3733 3734 3735 3736 3737 3738 | struct SrcList_item *pItem; assert( pDatabase==0 || pTable!=0 ); /* Cannot have C without B */ assert( db!=0 ); if( pList==0 ){ pList = sqlite3DbMallocRawNN(db, sizeof(SrcList) ); if( pList==0 ) return 0; pList->nAlloc = 1; | | > > | | > | 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 | struct SrcList_item *pItem; assert( pDatabase==0 || pTable!=0 ); /* Cannot have C without B */ assert( db!=0 ); if( pList==0 ){ pList = sqlite3DbMallocRawNN(db, sizeof(SrcList) ); if( pList==0 ) return 0; pList->nAlloc = 1; pList->nSrc = 1; memset(&pList->a[0], 0, sizeof(pList->a[0])); pList->a[0].iCursor = -1; }else{ pList = sqlite3SrcListEnlarge(db, pList, 1, pList->nSrc); } if( db->mallocFailed ){ sqlite3SrcListDelete(db, pList); return 0; } pItem = &pList->a[pList->nSrc-1]; if( pDatabase && pDatabase->z==0 ){ pDatabase = 0; |
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