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18 check-ins using file src/pager.c version bf51378c

2017-09-01
12:57
Remove an obsolete optimization in pcache that due to more recent changes was recently making the code a little slower. (check-in: c4e7e175 user: drh tags: trunk)
12:18
Small size and performance improvement in pcacheManageDirtyList() by not zeroing the PgHdr.pDirtyNext and PgHdr.pDirtyPrev pointers for PgHdr objects that are not on the dirty list. (check-in: 919863b1 user: drh tags: trunk)
2017-08-31
21:11
Clarify the documentation about "protected" versus "unprotected" sqlite3_value objects. No changes to code. (check-in: 4094a341 user: drh tags: trunk)
2017-08-30
13:21
Remove unnecessary "__declspec(dllexport)" qualifiers from generated file shell.c. (check-in: bcc20be5 user: dan tags: trunk)
04:44
Small performance optimization in pcache1. (check-in: ffd437da user: drh tags: trunk)
2017-08-29
20:21
Faster memory allocation from lookaside by not trying to keep track of the number of outstanding allocations, and rather computing that value only when requested. (check-in: a06263f1 user: drh tags: trunk)
2017-08-28
17:00
Add the --enable-update-limit option to the ./configure script. (check-in: 64a8ae68 user: drh tags: trunk)
16:11
Avoid unnecessary mutexes in the pcache1 implementation in the common case where no auxiliary page cache memory is configured. (check-in: 1ba051e3 user: drh tags: trunk)
15:51
Remove the rarely-used scratch memory allocator. This makes the code smaller, faster, and easier to maintain. In place of the scratch allocator, add the SQLITE_CONFIG_SMALL_MALLOC configuration option that provides a hint to SQLite that large memory allocations should be avoided. (check-in: 54b00024 user: drh tags: trunk)
14:33
Backport changes to shell.c into shell.c.in. (check-in: 2348045f user: drh tags: trunk)
11:12
Fix the ".dump", ".schema", and ".fullschema" commands of the command-line shell so that they work even if PRAGMA empty_result_callbacks is enabled. Fix for ticket [02f0f4c54f281]. (check-in: cf0d3715 user: drh tags: trunk)
2017-08-27
10:55
Instrumentation and changes in an effort to reduce thread contention. (Leaf check-in: c93298d5 user: drh tags: reduced-thread-contention)
2017-08-25
19:51
Fix a few over-length source code lines. No functional changes. (check-in: 1783c54c user: drh tags: trunk)
15:43
Size and performance optimization for sqlite3Init(). (check-in: 776d9128 user: drh tags: trunk)
13:34
Small performance optimization in sqlite3WhereBegin(). (check-in: 39f708d1 user: drh tags: trunk)
13:02
Convert a branch made unreachable by [59560d07] into an assert(). (check-in: 2738b8db user: drh tags: trunk)
11:44
Improve the internal mechanism used to keep track of what kind of syncing to do for WAL transaction commits and checkpoint operations. Use the checkpoint-style of syncing to sync the header of a new or restarted WAL file. (check-in: e8d23afe user: drh tags: trunk)
01:14
Update the mechanism used to keep track of what kind of syncing to do for WAL transaction commits and checkpoint operations. Use the checkpoint-style of syncing to sync the header of a new or restarted WAL file. (Closed-Leaf check-in: bf65dae8 user: drh tags: wal-sync-refactor)