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Comment:Provide the SQLITE_DEFAULT_LOOKASIDE compile-time option and make it's default value be 1200,100 (raised from 512,125 in the latest release).
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SHA1:584da48f9e818f25134e0a62fb7e84f07019511f
User & Date: drh 2017-01-02 19:02:20
Context
2017-01-02
19:10
Increase the version number to 3.17.0 for the next release cycle. check-in: 16415b5a user: drh tags: trunk
19:02
Provide the SQLITE_DEFAULT_LOOKASIDE compile-time option and make it's default value be 1200,100 (raised from 512,125 in the latest release). check-in: 584da48f user: drh tags: trunk
18:40
Change SQLITE_DEFAULT_PCACHE_INITSZ from 100 to 20, which is experimentally determined to be slightly faster. check-in: 12d9493c user: drh tags: trunk
Changes
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Changes to src/global.c.

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** memory.  (The statement journal is also always held entirely in memory
** if journal_mode=MEMORY or if temp_store=MEMORY, regardless of this
** setting.)
*/
#ifndef SQLITE_STMTJRNL_SPILL 
# define SQLITE_STMTJRNL_SPILL (64*1024)
#endif














/*
** The following singleton contains the global configuration for
** the SQLite library.
*/
SQLITE_WSD struct Sqlite3Config sqlite3Config = {
   SQLITE_DEFAULT_MEMSTATUS,  /* bMemstat */
   1,                         /* bCoreMutex */
   SQLITE_THREADSAFE==1,      /* bFullMutex */
   SQLITE_USE_URI,            /* bOpenUri */
   SQLITE_ALLOW_COVERING_INDEX_SCAN,   /* bUseCis */
   0x7ffffffe,                /* mxStrlen */
   0,                         /* neverCorrupt */
   512,                       /* szLookaside */
   125,                       /* nLookaside */
   SQLITE_STMTJRNL_SPILL,     /* nStmtSpill */
   {0,0,0,0,0,0,0,0},         /* m */
   {0,0,0,0,0,0,0,0,0},       /* mutex */
   {0,0,0,0,0,0,0,0,0,0,0,0,0},/* pcache2 */
   (void*)0,                  /* pHeap */
   0,                         /* nHeap */
   0, 0,                      /* mnHeap, mxHeap */







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** memory.  (The statement journal is also always held entirely in memory
** if journal_mode=MEMORY or if temp_store=MEMORY, regardless of this
** setting.)
*/
#ifndef SQLITE_STMTJRNL_SPILL 
# define SQLITE_STMTJRNL_SPILL (64*1024)
#endif

/*
** The default lookaside-configuration, the format "SZ,N".  SZ is the
** number of bytes in each lookaside slot (should be a multiple of 8)
** and N is the number of slots.  The lookaside-configuration can be
** changed as start-time using sqlite3_config(SQLITE_CONFIG_LOOKASIDE)
** or at run-time for an individual database connection using
** sqlite3_db_config(db, SQLITE_DBCONFIG_LOOKASIDE);
*/
#ifndef SQLITE_DEFAULT_LOOKASIDE
# define SQLITE_DEFAULT_LOOKASIDE 1200,100
#endif


/*
** The following singleton contains the global configuration for
** the SQLite library.
*/
SQLITE_WSD struct Sqlite3Config sqlite3Config = {
   SQLITE_DEFAULT_MEMSTATUS,  /* bMemstat */
   1,                         /* bCoreMutex */
   SQLITE_THREADSAFE==1,      /* bFullMutex */
   SQLITE_USE_URI,            /* bOpenUri */
   SQLITE_ALLOW_COVERING_INDEX_SCAN,   /* bUseCis */
   0x7ffffffe,                /* mxStrlen */
   0,                         /* neverCorrupt */
   SQLITE_DEFAULT_LOOKASIDE,  /* szLookaside, nLookaside */

   SQLITE_STMTJRNL_SPILL,     /* nStmtSpill */
   {0,0,0,0,0,0,0,0},         /* m */
   {0,0,0,0,0,0,0,0,0},       /* mutex */
   {0,0,0,0,0,0,0,0,0,0,0,0,0},/* pcache2 */
   (void*)0,                  /* pHeap */
   0,                         /* nHeap */
   0, 0,                      /* mnHeap, mxHeap */