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Overview
| Comment: | When TEMP files are in memory, also put the massive TEMP file used by the VACUUM command in memory. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
9daf4e7d07769f25b3a579d80e7fada4 |
| User & Date: | drh 2010-03-02 23:34:55 |
References
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2010-03-03
| ||
| 00:02 | When TEMP files are in memory, also put the massive TEMP file used by the VACUUM command in memory. This is a cherry-pick merge of [9daf4e7d07] check-in: e534223435 user: drh tags: branch-3.6.22 | |
Context
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2010-03-03
| ||
| 14:23 | Modify the command line tool to disable all mutexes. The command line tool is single-threaded. check-in: 00e5679047 user: dan tags: trunk | |
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2010-03-02
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| 23:34 | When TEMP files are in memory, also put the massive TEMP file used by the VACUUM command in memory. check-in: 9daf4e7d07 user: drh tags: trunk | |
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2010-02-26
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| 16:37 | Rename the sqlite_compile_option_*() SQL functions to sqlite_compileoption_*() for consistency with the C/C++ interface. check-in: dd4962aa34 user: drh tags: trunk | |
Changes
Changes to src/pcache.c.
185 186 187 188 189 190 191 192 193 194 195 196 197 198 |
** are no outstanding page references when this function is called.
*/
void sqlite3PcacheSetPageSize(PCache *pCache, int szPage){
assert( pCache->nRef==0 && pCache->pDirty==0 );
if( pCache->pCache ){
sqlite3GlobalConfig.pcache.xDestroy(pCache->pCache);
pCache->pCache = 0;
}
pCache->szPage = szPage;
}
/*
** Try to obtain a page from the cache.
*/
|
> |
185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 |
** are no outstanding page references when this function is called.
*/
void sqlite3PcacheSetPageSize(PCache *pCache, int szPage){
assert( pCache->nRef==0 && pCache->pDirty==0 );
if( pCache->pCache ){
sqlite3GlobalConfig.pcache.xDestroy(pCache->pCache);
pCache->pCache = 0;
pCache->pPage1 = 0;
}
pCache->szPage = szPage;
}
/*
** Try to obtain a page from the cache.
*/
|
Changes to src/vacuum.c.
134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 |
** (Later:) I tried setting "PRAGMA vacuum_db.journal_mode=OFF" but ** that actually made the VACUUM run slower. Very little journalling ** actually occurs when doing a vacuum since the vacuum_db is initially ** empty. Only the journal header is written. Apparently it takes more ** time to parse and run the PRAGMA to turn journalling off than it does ** to write the journal header file. */ zSql = "ATTACH '' AS vacuum_db;"; rc = execSql(db, pzErrMsg, zSql); if( rc!=SQLITE_OK ) goto end_of_vacuum; pDb = &db->aDb[db->nDb-1]; assert( strcmp(db->aDb[db->nDb-1].zName,"vacuum_db")==0 ); pTemp = db->aDb[db->nDb-1].pBt; /* The call to execSql() to attach the temp database has left the file |
> > > | > |
134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 |
** (Later:) I tried setting "PRAGMA vacuum_db.journal_mode=OFF" but ** that actually made the VACUUM run slower. Very little journalling ** actually occurs when doing a vacuum since the vacuum_db is initially ** empty. Only the journal header is written. Apparently it takes more ** time to parse and run the PRAGMA to turn journalling off than it does ** to write the journal header file. */ if( sqlite3TempInMemory(db) ){ zSql = "ATTACH ':memory:' AS vacuum_db;"; }else{ zSql = "ATTACH '' AS vacuum_db;"; } rc = execSql(db, pzErrMsg, zSql); if( rc!=SQLITE_OK ) goto end_of_vacuum; pDb = &db->aDb[db->nDb-1]; assert( strcmp(db->aDb[db->nDb-1].zName,"vacuum_db")==0 ); pTemp = db->aDb[db->nDb-1].pBt; /* The call to execSql() to attach the temp database has left the file |