database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-08-07 02:42:48 +03:00
Code Activity

Performance improvement in sqlite3_step() by creating a new mTrace flag

Browse Source 
for the legacy xProfile pointer that is set by sqlite3_profile().

FossilOrigin-Name: e28584e8bc7b7405380064b60523fa6191f827f74075f6d117eb7732d752ba5e
This commit is contained in:
drh
2018-12-04 14:33:02 +00:00
parent b7de827137
commit 04c6747a80
5 changed files with 26 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/vdbeapi.c
View File

@@ -62,14 +62,16 @@ static SQLITE_NOINLINE void invokeProfileCallback(sqlite3 *db, Vdbe *p){
sqlite3_int64 iNow;
sqlite3_int64 iElapse;
assert( p->startTime>0 );
assert( db->xProfile!=0 || (db->mTrace & SQLITE_TRACE_PROFILE)!=0 );
assert( (db->mTrace & (SQLITE_TRACE_PROFILE|SQLITE_TRACE_XPROFILE))!=0 );
assert( db->init.busy==0 );
assert( p->zSql!=0 );
sqlite3OsCurrentTimeInt64(db->pVfs, &iNow);
iElapse = (iNow - p->startTime)*1000000;
#ifndef SQLITE_OMIT_DEPRECATED
if( db->xProfile ){
db->xProfile(db->pProfileArg, p->zSql, iElapse);
}
#endif
if( db->mTrace & SQLITE_TRACE_PROFILE ){
db->xTrace(SQLITE_TRACE_PROFILE, db->pTraceArg, p, (void*)&iElapse);
}
@@ -602,7 +604,7 @@ static int sqlite3Step(Vdbe *p){
);
#ifndef SQLITE_OMIT_TRACE
if( (db->xProfile || (db->mTrace & SQLITE_TRACE_PROFILE)!=0)
if( (db->mTrace & (SQLITE_TRACE_PROFILE|SQLITE_TRACE_XPROFILE))!=0
&& !db->init.busy && p->zSql ){
sqlite3OsCurrentTimeInt64(db->pVfs, &p->startTime);
}else{