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27 check-ins using file tool/speed-check.sh version a57ee041
2016-10-01
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21:43 | Rearrange fields in the Parse object to reduce the amount of initialization required. (check-in: 361940b4 user: drh tags: trunk) | |
20:43 | Reduce the width of a memset() to avoid double-initializing some variables. (check-in: 34edbfd1 user: drh tags: trunk) | |
19:32 | Remove an unnecessary memset() call. (check-in: a76bff74 user: drh tags: trunk) | |
19:21 | Use sqlite3DbMallocRawNN() where appropriate, instead of sqlite3DbMallocRaw(). (check-in: 54a449a4 user: drh tags: trunk) | |
16:53 | Make sure deleting an unused prepared statement does not reference uninitialized fields in the structure. (check-in: 7983eef0 user: drh tags: trunk) | |
11:39 | Avoid accessing Vdbe.pc if it is uninitialized. Check Vdbe.magic first. (check-in: 6ac6e446 user: drh tags: trunk) | |
00:37 | Avoid unnecessary zeroing of fields in the Vdbe object when it is allocated. (check-in: 1e21bbe8 user: drh tags: trunk) | |
2016-09-30
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22:24 | Avoid initializing the column-cache section of the Parse object, since entries in the cache will be initialized as they are used, and avoiding the initial memset() saves many CPU cycles. (check-in: 63cf7eaf user: drh tags: trunk) | |
21:20 | Fix an always-true conditional left over from the previous commit. (check-in: ab12fce3 user: drh tags: trunk) | |
20:22 | Fix the Parse.aColCache column cache so that all of the valid entries are in the first Parse.nColCache slots. (check-in: 60285020 user: drh tags: trunk) | |
19:14 | Another simplification to the Parse object. (check-in: c1419727 user: drh tags: trunk) | |
18:35 | Remove unnecessary fields from the Parse object. (check-in: 814e41da user: drh tags: trunk) | |
17:46 | Avoid unnecessary Mem initializations when generating a new sqlite3_stmt object. (check-in: 47ae1cda user: drh tags: trunk) | |
2016-09-29
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20:28 | Small size and performance optimization to sqlite3VdbeChangeP5(). (check-in: 3c93c8f5 user: drh tags: trunk) | |
19:50 | Remove the peep-hole optimization of removing OP_Close opcodes that come before OP_Halt, as the extra work of removing those opcodes uses more cycles than just running them. (check-in: 984a96d7 user: drh tags: trunk) | |
19:27 | Size and performance optimization to sqlite3ValueFromExpr() (check-in: 945f82bc user: drh tags: trunk) | |
15:53 | Clarification and typo-fixes in comments. No changes to code. (check-in: e2cd79aa user: drh tags: trunk) | |
2016-09-28
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20:42 | Use Knuth multiplicative hashing for the symbol table. (check-in: cc29ddd6 user: drh tags: trunk) | |
16:15 | Merge recent enhancements from trunk. (check-in: 06014163 user: drh tags: apple-osx) | |
16:05 | Two more typo fixes in comments. (check-in: 40c0fb0a user: drh tags: trunk) | |
16:04 | Fix typos in comments. No code changes. (check-in: 5bbd071d user: drh tags: trunk) | |
2016-09-27
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00:09 | Update requirements marks due to improvements in the wording of documentation. No changes to code. (check-in: bf903b2e user: drh tags: trunk) | |
00:03 | Fix FTS3 test cases due to the flattener change of the previous check-in. (check-in: 0c8b9b21 user: drh tags: trunk) | |
2016-09-26
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14:39 | When flattening a query of the form "SELECT * FROM (SELECT * FROM tbl WHERE x=?) WHERE y=?", ensure that the final WHERE clause is "x=? AND y=?" instead of "y=? AND x=?". Although it is still not guaranteed, this makes the order in which WHERE clause terms are processed comport more closely to users expectations. (check-in: cf7f9e6d user: dan tags: trunk) | |
12:38 | Inline the relevent parts of sqlite3ExprAlloc() into spanExpr(), for a performance improvement. (check-in: fe89225e user: drh tags: trunk) | |
2016-09-24
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17:42 | Omit the LikeOp object from the parser. Change more sqlite3PExpr() calls into sqlite3ExprAlloc() calls. (check-in: 795454a3 user: drh tags: trunk) | |
01:41 | Add -DSQLITE_MAX_EXPR_DEPTH=0 to the --lean option on speed-check.sh. (check-in: a8cb1390 user: drh tags: trunk) | |