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Overview
| Comment: | When VDBE_PROFILE is enabled, ignore negative opcode times, which sometimes occur, perhaps due to context swaps. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
4e88042f9d3e678914da96c0eb276f3d |
| User & Date: | drh 2014-04-25 12:35:31 |
Context
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2014-04-25
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| 14:42 | Make sure ORDER BY clauses on joins that involve virtual tables and that have a DISTINCT clause work correctly. This is a candidate fix for ticket [388d01d4bb8f9]. Test cases for that ticket will be checked in separately. check-in: 17113812 user: drh tags: trunk | |
| 12:35 | When VDBE_PROFILE is enabled, ignore negative opcode times, which sometimes occur, perhaps due to context swaps. check-in: 4e88042f user: drh tags: trunk | |
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2014-04-21
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| 13:36 | Comment tweaks on the test case for the [b75a9ca6b0] bug fix. check-in: 65d2544a user: drh tags: trunk | |
Changes
Changes to src/vdbe.c.
6319 6319 ** readability. From this point on down, the normal indentation rules are 6320 6320 ** restored. 6321 6321 *****************************************************************************/ 6322 6322 } 6323 6323 6324 6324 #ifdef VDBE_PROFILE 6325 6325 { 6326 - u64 elapsed = sqlite3Hwtime() - start; 6327 - pOp->cycles += elapsed; 6326 + u64 endTime = sqlite3Hwtime(); 6327 + if( endTime>start ) pOp->cycles += endTime - start; 6328 6328 pOp->cnt++; 6329 6329 } 6330 6330 #endif 6331 6331 6332 6332 /* The following code adds nothing to the actual functionality 6333 6333 ** of the program. It is only here for testing and debugging. 6334 6334 ** On the other hand, it does burn CPU cycles every time through