Artifact
3c6adcbc50b991866855f1977ff172eb6d901271:
- File
mptest/config01.test
— part of check-in
[ea1404a10a]
at
2013-04-15 17:03:42
on branch trunk
— Refactoring the mmap interface. The controlling pragma is now "mmap_size"
instead of "mmap_limit". Also change SQLITE_CONFIG_MMAP_LIMIT and
SQLITE_FCNTL_MMAP_LIMIT to SQLITE_CONFIG_MMAP_SIZE and
SQLITE_FCNTL_MMAP_SIZE, respecctively.
The default mmap_size is now always 0, meaning that
memory mapped I/O is off by default. There is a new compile-time option
SQLITE_MAX_MMAP_SIZE that determines a hard upper bound on the mmap_size.
Setting SQLITE_MAX_MMAP_SIZE to zero disables the memory-mapped I/O logic
and causes it to be omitted from the build. An extra argument is added
to SQLITE_CONFIG_MMAP_SIZE that can optionally lower the SQLITE_MAX_MMAP_SIZE
at start-time. The SQLITE_MAX_MMAP_SIZE is zero for platforms where we
know that it does not work, meaning that it cannot be turned on by mistake
on those platforms.
(user:
drh
size: 950)
[more...]
/*
** Configure five tasks in different ways, then run tests.
*/
--if vfsname() GLOB 'unix'
PRAGMA page_size=8192;
--task 1
PRAGMA journal_mode=PERSIST;
PRAGMA mmap_size=0;
--end
--task 2
PRAGMA journal_mode=TRUNCATE;
PRAGMA mmap_size=28672;
--end
--task 3
PRAGMA journal_mode=MEMORY;
--end
--task 4
PRAGMA journal_mode=OFF;
--end
--task 4
PRAGMA mmap_size(268435456);
--end
--source multiwrite01.test
--wait all
PRAGMA page_size=16384;
VACUUM;
CREATE TABLE pgsz(taskid, sz INTEGER);
--task 1
INSERT INTO pgsz VALUES(1, eval('PRAGMA page_size'));
--end
--task 2
INSERT INTO pgsz VALUES(2, eval('PRAGMA page_size'));
--end
--task 3
INSERT INTO pgsz VALUES(3, eval('PRAGMA page_size'));
--end
--task 4
INSERT INTO pgsz VALUES(4, eval('PRAGMA page_size'));
--end
--task 5
INSERT INTO pgsz VALUES(5, eval('PRAGMA page_size'));
--end
--source multiwrite01.test
--wait all
SELECT sz FROM pgsz;
--match 16384 16384 16384 16384 16384