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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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SHA1: 4e88042f9d3e678914da96c0eb276f3d8fca5a94
User & Date: drh 2014-04-25 12:35:31.621
Context
2014-04-25
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: 1711381226 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: 4e88042f9d user: drh tags: trunk)
2014-04-21
13:36
Comment tweaks on the test case for the [b75a9ca6b0] bug fix. (check-in: 65d2544af9 user: drh tags: trunk)
Changes
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Changes to src/vdbe.c.
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** readability.  From this point on down, the normal indentation rules are
** restored.
*****************************************************************************/
    }

#ifdef VDBE_PROFILE
    {
      u64 elapsed = sqlite3Hwtime() - start;
      pOp->cycles += elapsed;
      u64 endTime = sqlite3Hwtime();
      if( endTime>start ) pOp->cycles += endTime - start;
      pOp->cnt++;
    }
#endif

    /* The following code adds nothing to the actual functionality
    ** of the program.  It is only here for testing and debugging.
    ** On the other hand, it does burn CPU cycles every time through
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