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2011-01-18
17:03
Do not use mutexes in the pcache implementation unless SQLITE_ENABLE_MEMORY_MANAGMENT is defined. This is a performance enhancement. A side effect is that pcaches will not steal pages from one another unless ENABLE_MEMORY_MANAGEMENT is set, or unless SQLITE_THREADSAFE=0. check-in: e5ca59e63b user: drh tags: trunk
16:13
Get all test cases working with the mutex-free-pcache implementation. Closed-Leaf check-in: 2dc98d2999 user: drh tags: mutex-free-pcache
15:17
Do not use SQLITE_MUTEX_STATIC_MEM2 since it has been reused as STATIC_OPEN. Instead, create a new static mutex STATIC_PMEM which is an alias for the unused STATIC_LRU2. check-in: f1cf02efcb user: drh tags: mutex-free-pcache
2011-01-17
21:32
Here is a completely new implementation of the mutex-free-pcache. This one uses a common code base and automatically selects whether or not to use mutexes depending on compile-time and start-time options. check-in: d094a1bfb7 user: drh tags: mutex-free-pcache
18:30
Fix a typo in the documentation for sqlite3_stmt_readonly(). check-in: 56417a3386 user: drh tags: trunk
2011-01-14
16:12
Provide an alternative and experimental pcache implementation that avoids the use of mutexes at the expense of using more memory. Closed-Leaf check-in: 2ea5bd1287 user: drh tags: mutex-free-pcache
15:17
Fix comments, including some documentation comments, in the page cache logic. No code changes. check-in: c80e9c1a0d user: drh tags: trunk