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Overview
| Comment: | Add a compile-time constant for configuring the default pagecache setup. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | pcache-bulk-local |
| Files: | files | file ages | folders |
| SHA1: |
ad5fdfbac85682f0f0dee62e1086f400 |
| User & Date: | drh 2015-07-07 21:14:42 |
Context
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2015-07-08
| ||
| 01:22 | Avoid left-shifting bits into the sign of a signed integer, as such behavior is technically undefined. (check-in: 9417b402 user: drh tags: pcache-bulk-local) | |
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2015-07-07
| ||
| 21:14 | Add a compile-time constant for configuring the default pagecache setup. (check-in: ad5fdfba user: drh tags: pcache-bulk-local) | |
| 15:14 | No need to test sqlite3GlobalConfig.bCoreMutex when SQLITE_THREADSAFE==0. (check-in: 26db0fee user: drh tags: pcache-bulk-local) | |
Changes
Changes to src/global.c.
182 182 SQLITE_DEFAULT_MMAP_SIZE, /* szMmap */ 183 183 SQLITE_MAX_MMAP_SIZE, /* mxMmap */ 184 184 (void*)0, /* pScratch */ 185 185 0, /* szScratch */ 186 186 0, /* nScratch */ 187 187 (void*)0, /* pPage */ 188 188 0, /* szPage */ 189 - 100, /* nPage */ 189 + SQLITE_DEFAULT_PCACHE_INITSZ, /* nPage */ 190 190 0, /* mxParserStack */ 191 191 0, /* sharedCacheEnabled */ 192 192 SQLITE_SORTER_PMASZ, /* szPma */ 193 193 /* All the rest should always be initialized to zero */ 194 194 0, /* isInit */ 195 195 0, /* inProgress */ 196 196 0, /* isMutexInit */
Changes to src/sqliteInt.h.
505 505 # define SQLITE_DEFAULT_WORKER_THREADS 0 506 506 #endif 507 507 #if SQLITE_DEFAULT_WORKER_THREADS>SQLITE_MAX_WORKER_THREADS 508 508 # undef SQLITE_MAX_WORKER_THREADS 509 509 # define SQLITE_MAX_WORKER_THREADS SQLITE_DEFAULT_WORKER_THREADS 510 510 #endif 511 511 512 +/* 513 +** The default initial allocation for the pagecache when using separate 514 +** pagecaches for each database connection. A positive number is the 515 +** number of pages. A negative number N translations means that a buffer 516 +** of -1024*N bytes is allocated and used for as many pages as it will hold. 517 +*/ 518 +#ifndef SQLITE_DEFAULT_PCACHE_INITSZ 519 +# define SQLITE_DEFAULT_PCACHE_INITSZ 100 520 +#endif 521 + 512 522 513 523 /* 514 524 ** GCC does not define the offsetof() macro so we'll have to do it 515 525 ** ourselves. 516 526 */ 517 527 #ifndef offsetof 518 528 #define offsetof(STRUCTURE,FIELD) ((int)((char*)&((STRUCTURE*)0)->FIELD))