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Overview
Comment: | Interchange two conditions in an "if" statment in sqlite3PagerAcquire() for very slight (0.06%) overall performance increase. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
fbcc1a3ebb016225c3580181c908a290 |
User & Date: | drh 2013-12-08 19:54:52.040 |
Context
2013-12-08
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22:59 | Avoid unnecessary calls to sqlite3VarintLen() from the OP_MakeRecord opcode. (check-in: 7a234fc3c5 user: drh tags: trunk) | |
19:54 | Interchange two conditions in an "if" statment in sqlite3PagerAcquire() for very slight (0.06%) overall performance increase. (check-in: fbcc1a3ebb user: drh tags: trunk) | |
2013-12-07
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17:01 | Increase the version number to 3.8.3. (check-in: 23d00f2287 user: drh tags: trunk) | |
Changes
Changes to src/pager.c.
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5288 5289 5290 5291 5292 5293 5294 | }else{ if( bMmapOk && pagerUseWal(pPager) ){ rc = sqlite3WalFindFrame(pPager->pWal, pgno, &iFrame); if( rc!=SQLITE_OK ) goto pager_acquire_err; } | | | 5288 5289 5290 5291 5292 5293 5294 5295 5296 5297 5298 5299 5300 5301 5302 | }else{ if( bMmapOk && pagerUseWal(pPager) ){ rc = sqlite3WalFindFrame(pPager->pWal, pgno, &iFrame); if( rc!=SQLITE_OK ) goto pager_acquire_err; } if( bMmapOk && iFrame==0 ){ void *pData = 0; rc = sqlite3OsFetch(pPager->fd, (i64)(pgno-1) * pPager->pageSize, pPager->pageSize, &pData ); if( rc==SQLITE_OK && pData ){ |
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