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Overview
Comment: | When compiling with VDBE_PROFILE, add the sqlite3NProfileCnt global variable which can be used to measure per-opcode values other than elapse time, if non-zero. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA3-256: |
d44d5936428859b6d3e089d9835acb8c |
User & Date: | drh 2018-02-12 20:27:34.197 |
Context
2018-02-12
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20:50 | Updates to the speed-check.sh script for improvements to the --vdbeprofile option. (check-in: f89c8f8ecd user: drh tags: trunk) | |
20:27 | When compiling with VDBE_PROFILE, add the sqlite3NProfileCnt global variable which can be used to measure per-opcode values other than elapse time, if non-zero. (check-in: d44d593642 user: drh tags: trunk) | |
15:27 | Update test file func6.test so that it works with SQLITE_ENABLE_NULL_TRIM builds. (check-in: e128d72f1a user: dan tags: trunk) | |
Changes
Changes to src/global.c.
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254 255 256 257 258 259 260 261 262 263 264 265 266 267 | ** Constant tokens for values 0 and 1. */ const Token sqlite3IntTokens[] = { { "0", 1 }, { "1", 1 } }; /* ** The value of the "pending" byte must be 0x40000000 (1 byte past the ** 1-gibabyte boundary) in a compatible database. SQLite never uses ** the database page that contains the pending byte. It never attempts ** to read or write that page. The pending byte page is set aside ** for use by the VFS layers as space for managing file locks. | > > > > > > > | 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 | ** Constant tokens for values 0 and 1. */ const Token sqlite3IntTokens[] = { { "0", 1 }, { "1", 1 } }; #ifdef VDBE_PROFILE /* ** The following performance counter can be used in place of ** sqlite3Hwtime() for profiling. This is a no-op on standard builds. */ sqlite3_uint64 sqlite3NProfileCnt = 0; #endif /* ** The value of the "pending" byte must be 0x40000000 (1 byte past the ** 1-gibabyte boundary) in a compatible database. SQLite never uses ** the database page that contains the pending byte. It never attempts ** to read or write that page. The pending byte page is set aside ** for use by the VFS layers as space for managing file locks. |
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Changes to src/sqliteInt.h.
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4065 4066 4067 4068 4069 4070 4071 4072 4073 4074 4075 4076 4077 4078 | extern const Token sqlite3IntTokens[]; extern SQLITE_WSD struct Sqlite3Config sqlite3Config; extern FuncDefHash sqlite3BuiltinFunctions; #ifndef SQLITE_OMIT_WSD extern int sqlite3PendingByte; #endif #endif void sqlite3RootPageMoved(sqlite3*, int, int, int); void sqlite3Reindex(Parse*, Token*, Token*); void sqlite3AlterFunctions(void); void sqlite3AlterRenameTable(Parse*, SrcList*, Token*); int sqlite3GetToken(const unsigned char *, int *); void sqlite3NestedParse(Parse*, const char*, ...); void sqlite3ExpirePreparedStatements(sqlite3*); | > > > | 4065 4066 4067 4068 4069 4070 4071 4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 | extern const Token sqlite3IntTokens[]; extern SQLITE_WSD struct Sqlite3Config sqlite3Config; extern FuncDefHash sqlite3BuiltinFunctions; #ifndef SQLITE_OMIT_WSD extern int sqlite3PendingByte; #endif #endif #ifdef VDBE_PROFILE extern sqlite3_uint64 sqlite3NProfileCnt; #endif void sqlite3RootPageMoved(sqlite3*, int, int, int); void sqlite3Reindex(Parse*, Token*, Token*); void sqlite3AlterFunctions(void); void sqlite3AlterRenameTable(Parse*, SrcList*, Token*); int sqlite3GetToken(const unsigned char *, int *); void sqlite3NestedParse(Parse*, const char*, ...); void sqlite3ExpirePreparedStatements(sqlite3*); |
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Changes to src/vdbe.c.
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644 645 646 647 648 649 650 | for(pOp=&aOp[p->pc]; 1; pOp++){ /* Errors are detected by individual opcodes, with an immediate ** jumps to abort_due_to_error. */ assert( rc==SQLITE_OK ); assert( pOp>=aOp && pOp<&aOp[p->nOp]); #ifdef VDBE_PROFILE | | | 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 | for(pOp=&aOp[p->pc]; 1; pOp++){ /* Errors are detected by individual opcodes, with an immediate ** jumps to abort_due_to_error. */ assert( rc==SQLITE_OK ); assert( pOp>=aOp && pOp<&aOp[p->nOp]); #ifdef VDBE_PROFILE start = sqlite3NProfileCnt ? sqlite3NProfileCnt : sqlite3Hwtime(); #endif nVmStep++; #ifdef SQLITE_ENABLE_STMT_SCANSTATUS if( p->anExec ) p->anExec[(int)(pOp-aOp)]++; #endif /* Only allow tracing if SQLITE_DEBUG is defined. |
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7229 7230 7231 7232 7233 7234 7235 | ** readability. From this point on down, the normal indentation rules are ** restored. *****************************************************************************/ } #ifdef VDBE_PROFILE { | | | 7229 7230 7231 7232 7233 7234 7235 7236 7237 7238 7239 7240 7241 7242 7243 | ** readability. From this point on down, the normal indentation rules are ** restored. *****************************************************************************/ } #ifdef VDBE_PROFILE { u64 endTime = sqlite3NProfileCnt ? sqlite3NProfileCnt : sqlite3Hwtime(); if( endTime>start ) pOrigOp->cycles += endTime - start; pOrigOp->cnt++; } #endif /* The following code adds nothing to the actual functionality ** of the program. It is only here for testing and debugging. |
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