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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 | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
d44d5936428859b6d3e089d9835acb8c |
| User & Date: | drh 2018-02-12 20:27:34 |
Context
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2018-02-12
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| 20:50 | Updates to the speed-check.sh script for improvements to the --vdbeprofile option. check-in: f89c8f8e 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: d44d5936 user: drh tags: trunk | |
| 15:27 | Update test file func6.test so that it works with SQLITE_ENABLE_NULL_TRIM builds. check-in: e128d72f user: dan tags: trunk | |
Changes
Changes to src/global.c.
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** 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.
|
> > > > > > > |
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** 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.
|
Changes to src/sqliteInt.h.
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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*); |
> > > |
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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*); |
Changes to src/vdbe.c.
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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 = 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.
................................................................................
** readability. From this point on down, the normal indentation rules are
** restored.
*****************************************************************************/
}
#ifdef VDBE_PROFILE
{
u64 endTime = 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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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.
................................................................................
** 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.
|