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27 check-ins using file src/pcache.c version da602c54
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2014-08-26
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| 02:15 | Merge recent performance enhancements and the CAST operator enhancements into the sessions branch. check-in: 08ae974a user: drh tags: sessions | |
| 02:02 | Merge recent performance enhancements and the CAST operator enhancements into the apple-osx branch. check-in: 5c273111 user: drh tags: apple-osx | |
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2014-08-25
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| 23:44 | Remove the SQLITE_CONFIG_WORKER_THREADS configuration parameter. The number of worker threads in the sorter is now determined only by the PRAGMA threads=N setting. check-in: e3305d4b user: drh tags: threads | |
| 22:43 | Merge the CAST operator enhancements from trunk. check-in: 6c8f86e4 user: drh tags: threads | |
| 22:37 | Add an assert() and five testcase() macros to the OP_Cast opcode implementation to help verify that it is fully tested. check-in: af364cce user: drh tags: trunk | |
| 21:11 | Minor changes to the CAST logic to make it more testable. check-in: 1ad70ec5 user: drh tags: trunk | |
| 20:21 | Test cases added for using unary "+" and CAST operators on the RHS of range constraints and verifying that STAT3/4 can use those constraints. check-in: 42505e5a user: drh tags: trunk | |
| 20:11 | Allow CAST expressions and unary "+" operators to be used in the DEFAULT argument of an ALTER TABLE ADD COLUMN and to be understand on the RHS of range constraints interpreted by STAT3/4. This involves a rewrite of the implementation of the CAST operator. check-in: 91d8a8d0 user: drh tags: trunk | |
| 18:29 | In cases where stat4 data is available but cannot be used because the rhs of a range constraint is too complex a expression, fall back to using the default estimates for number of rows scanned. check-in: e06dc6f0 user: dan tags: trunk | |
| 15:13 | Query or change the maximum number of worker threads allowed on each database connection separately using the "PRAGMA threads" command. check-in: 29c5e8a7 user: drh tags: threads | |
| 13:27 | Merge the recent performance enhancements implemented on trunk into the threads branch. check-in: dfdc900f user: drh tags: threads | |
| 11:33 | Remove the pager_lookup() function since it is redundant with sqlite3PagerLookup(). check-in: 54164ce4 user: drh tags: trunk | |
| 11:20 | Change the name of the VdbeMemRelease() macro to VdbeMemReleaseExtern() to more accurately reflect what it does. Performance enhancement to the sqlite3VdbeMemRelease() function. check-in: 3ca5846d user: drh tags: trunk | |
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2014-08-24
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| 02:53 | The sqlite3VdbeChangeEncoding() routine goes about 3x faster if the sqlite3VdbeMemTranslate() subroutine is not inlined. check-in: 0c7e1b87 user: drh tags: trunk | |
| 01:32 | Patch the sqlite3PagerWrite() method in the Pager to run a bit faster. check-in: c63311e2 user: drh tags: trunk | |
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2014-08-23
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| 23:15 | Faster implementation of pcache1Fetch() check-in: 0371cc3b user: drh tags: trunk | |
| 20:25 | Faster implementation of the sqlite3ApiExit() routine. check-in: bd41d394 user: drh tags: trunk | |
| 19:42 | Another memory allocator performance optimization. check-in: 6da6f46d user: drh tags: trunk | |
| 19:08 | Fix a variable-declaration after code problem in btree.c. Harmless in GCC and CLANG but unacceptable for MSVC. check-in: 45abd5c0 user: drh tags: trunk | |
| 19:04 | Changes to sqlite3ScratchMalloc() that make the entire memory allocation interface a little faster and about 100 bytes smaller. check-in: f83daa16 user: drh tags: trunk | |
| 18:17 | Make the implementation of the sqlite3_aggregate_context() interface faster for second an subsequent invocations. This helps all aggregate functions to perform better. check-in: 802148f3 user: drh tags: trunk | |
| 17:41 | Improved performance in the type handling of arithmetic operators in the VDBE. check-in: 0c0a6039 user: drh tags: trunk | |
| 17:21 | Performance optimization in the applyAffinity() logic inside the VDBE. check-in: 25f2246b user: drh tags: trunk | |
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2014-08-22
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| 23:33 | Another performance tweak: Split the sqlite3BtreeCursorHasMoved() routine into two with the second routine named sqlite3BtreeCursorRestore(). The first now only reports whether or not the cursor has moved and the second tries to restore the cursor. This allows the sqlite3VdbeCursorMoveto() routine to be refactored to avoid stack pointer movements, for a noticable performance gain. check-in: ce123b5c user: drh tags: trunk | |
| 22:26 | Factor the saveAllCursors() routine of btree.c into two separate routines, for a noticable performance improvement. check-in: 3eb08439 user: drh tags: trunk | |
| 21:58 | Performance enhancements in the b-tree mutex logic. check-in: 89145306 user: drh tags: trunk | |
| 20:35 | Combine the pcacheAddToDirtyList() and pcacheRemoveFromDirtyList() routines into a single pcacheManageDirtyList() routine. The resulting binary code is slightly faster and a few bytes smaller. check-in: 6bcf1af6 user: drh tags: trunk | |