0032769: Data Exchange - Slow processing of very large STEP file

- Set on optimized memory manager by default

src/HLRAlgo/HLRAlgo_PolyInternalData.cxx

@@ -78,13 +78,11 @@ void HLRAlgo_PolyInternalData::UpdateLinks (HLRAlgo_Array1OfTData& theTData,
     HLRAlgo_PolyInternalNode::NodeIndices& A2 = thePINod.ChangeValue(TD->Node2)->Indices();
     HLRAlgo_PolyInternalNode::NodeIndices& A3 = thePINod.ChangeValue(TD->Node3)->Indices();
 
-    bool notFound = true;
     {
     n1 = TD->Node1;
     n2 = TD->Node2;
     newSeg = Standard_False;
     if (A1.NdSg == 0 && A2.NdSg == 0) {
-      notFound = false;
       newSeg = Standard_True;
       myNbPISeg++;
       A1.NdSg = myNbPISeg;
@@ -109,7 +107,6 @@ void HLRAlgo_PolyInternalData::UpdateLinks (HLRAlgo_Array1OfTData& theTData,
 	  }
 	}
 	if (find == 0) {
-	  notFound = false;
 	  newSeg = Standard_True;
 	  myNbPISeg++;
 	  if (icsv == 1) aSegIndices->NxtSg1 = myNbPISeg;
@@ -118,7 +115,6 @@ void HLRAlgo_PolyInternalData::UpdateLinks (HLRAlgo_Array1OfTData& theTData,
 	else aSegIndices->Conex2 = i;
       }
       else {
-	notFound = false;
 	newSeg = Standard_True;
 	myNbPISeg++;
 	A1.NdSg = myNbPISeg;
@@ -149,13 +145,11 @@ void HLRAlgo_PolyInternalData::UpdateLinks (HLRAlgo_Array1OfTData& theTData,
     }
     }
 
-    if (notFound)
     {
     n1 = TD->Node2;
     n2 = TD->Node3;
     newSeg = Standard_False;
     if (A2.NdSg == 0 && A3.NdSg == 0) {
-      notFound = false;
       newSeg = Standard_True;
       myNbPISeg++;
       A2.NdSg = myNbPISeg;
@@ -180,7 +174,6 @@ void HLRAlgo_PolyInternalData::UpdateLinks (HLRAlgo_Array1OfTData& theTData,
 	  }
 	}
 	if (find == 0) {
-	  notFound = false;
 	  newSeg = Standard_True;
 	  myNbPISeg++;
 	  if (icsv == 1) aSegIndices->NxtSg1 = myNbPISeg;
@@ -189,7 +182,6 @@ void HLRAlgo_PolyInternalData::UpdateLinks (HLRAlgo_Array1OfTData& theTData,
 	else aSegIndices->Conex2 = i;
       }
       else {
-	notFound = false;
 	newSeg = Standard_True;
 	myNbPISeg++;
 	A2.NdSg = myNbPISeg;
@@ -220,13 +212,11 @@ void HLRAlgo_PolyInternalData::UpdateLinks (HLRAlgo_Array1OfTData& theTData,
     }
     }
 
-    if (notFound)
     {
     n1 = TD->Node3;
     n2 = TD->Node1;
     newSeg = Standard_False;
     if (A3.NdSg == 0 && A1.NdSg == 0) {
-      notFound = false;
       newSeg = Standard_True;
       myNbPISeg++;
       A3.NdSg = myNbPISeg;
@@ -251,7 +241,6 @@ void HLRAlgo_PolyInternalData::UpdateLinks (HLRAlgo_Array1OfTData& theTData,
 	  }
 	}
 	if (find == 0) {
-	  notFound = false;
 	  newSeg = Standard_True;
 	  myNbPISeg++;
 	  if (icsv == 1) aSegIndices->NxtSg1 = myNbPISeg;
@@ -260,7 +249,6 @@ void HLRAlgo_PolyInternalData::UpdateLinks (HLRAlgo_Array1OfTData& theTData,
 	else aSegIndices->Conex2 = i;
       }
       else {
-	notFound = false;
 	newSeg = Standard_True;
 	myNbPISeg++;
 	A3.NdSg = myNbPISeg;

src/Standard/Standard.cxx

@@ -43,7 +43,7 @@
 #endif
 
 #ifndef OCCT_MMGT_OPT_DEFAULT
-#define OCCT_MMGT_OPT_DEFAULT 0
+#define OCCT_MMGT_OPT_DEFAULT 1
 #endif
 
 //=======================================================================