Index: tao/IIOP_Endpoint.h
===================================================================
--- tao/IIOP_Endpoint.h	(revision 85567)
+++ tao/IIOP_Endpoint.h	(working copy)
@@ -175,16 +175,20 @@
 
   /// Generate preferred interfaces from the options passed in by the
   /// user.
-  CORBA::ULong preferred_interfaces (const char* csvPreferred, bool enforce);
+  CORBA::ULong preferred_interfaces (const char *csvPreferred,
+                                     bool enforce,
+                                     TAO_IIOP_Profile &profile);
 
   /// Chain a new duplicate of ourself with the specified
   /// local preferred interface.
-  TAO_IIOP_Endpoint* add_local_endpoint(TAO_IIOP_Endpoint* ep, const char* local);
+  TAO_IIOP_Endpoint *add_local_endpoint(TAO_IIOP_Endpoint *ep,
+                                        const char *local,
+                                        TAO_IIOP_Profile &profile);
 
   /// Canonical copy constructor
   /**
    * In private section to prevent clients from invoking this
-   * accidentally. Clients should only use duplicate () to make a depp
+   * accidentally. Clients should only use duplicate () to make a deep
    * copy
    */
   TAO_IIOP_Endpoint (const TAO_IIOP_Endpoint &);
Index: tao/IIOP_Profile.cpp
===================================================================
--- tao/IIOP_Profile.cpp	(revision 85567)
+++ tao/IIOP_Profile.cpp	(working copy)
@@ -58,6 +58,7 @@
                  version),
     endpoint_ (addr,
                orb_core->orb_params ()->use_dotted_decimal_addresses ()),
+    last_endpoint_ (&this->endpoint_),
     count_ (1)
 {
 }
@@ -73,6 +74,7 @@
                  object_key,
                  version),
     endpoint_ (host, port, addr),
+    last_endpoint_ (&this->endpoint_),
     count_ (1)
 {
 }
@@ -83,6 +85,7 @@
                  TAO_GIOP_Message_Version (TAO_DEF_GIOP_MAJOR,
                                            TAO_DEF_GIOP_MINOR)),
     endpoint_ (),
+    last_endpoint_ (&this->endpoint_),
     count_ (1)
 {
 }
@@ -118,7 +121,7 @@
       const char* csv = this->orb_core()->orb_params()->preferred_interfaces();
       bool const enforce =
         this->orb_core()->orb_params()->enforce_pref_interfaces();
-      this->count_ += this->endpoint_.preferred_interfaces(csv, enforce);
+      this->count_ += this->endpoint_.preferred_interfaces(csv, enforce, *this);
 
       return 1;
     }
@@ -394,8 +397,8 @@
 void
 TAO_IIOP_Profile::add_endpoint (TAO_IIOP_Endpoint *endp)
 {
-  endp->next_ = this->endpoint_.next_;
-  this->endpoint_.next_ = endp;
+  this->last_endpoint_->next_ = endp;
+  this->last_endpoint_ = endp;
 
   ++this->count_;
 }
@@ -416,27 +419,35 @@
           // since the assignment operator does not copy the next_
           // pointer, we must do it by hand
           this->endpoint_.next_ = n->next_;
+          if (this->last_endpoint_ == n)
+            {
+              this->last_endpoint_ = &this->endpoint_;
+            }
           delete n;
         }
       return;
     }
 
-  TAO_IIOP_Endpoint* last = &this->endpoint_;
+  TAO_IIOP_Endpoint* prev = &this->endpoint_;
   TAO_IIOP_Endpoint* cur = this->endpoint_.next_;
 
   while (cur != 0)
   {
     if (cur == endp)
       break;
-    last = cur;
+    prev = cur;
     cur = cur->next_;
   }
 
   if (cur != 0)
   {
-    last->next_ = cur->next_;
+    prev->next_ = cur->next_;
     cur->next_ = 0;
     --this->count_;
+    if (this->last_endpoint_ == cur)
+      {
+        this->last_endpoint_ = prev;
+      }
     delete cur;
   }
 }
Index: tao/IIOP_Profile.h
===================================================================
--- tao/IIOP_Profile.h	(revision 85567)
+++ tao/IIOP_Profile.h	(working copy)
@@ -72,7 +72,7 @@
 
   /**
    * Add @a endp to this profile's list of endpoints (it is inserted
-   * next to the head of the list).  This profiles takes ownership of
+   * at the end of the list).  This profiles takes ownership of
    * @a endp.
    */
   void add_endpoint (TAO_IIOP_Endpoint *endp);
@@ -184,6 +184,9 @@
 
   TAO_IIOP_Endpoint endpoint_;
 
+  /// For efficient insertion at the end of the list
+  TAO_IIOP_Endpoint *last_endpoint_;
+
   /// Number of endpoints in the list headed by <endpoint_>.
   CORBA::ULong count_;
 
Index: tao/IIOP_Endpoint.cpp
===================================================================
--- tao/IIOP_Endpoint.cpp	(revision 85567)
+++ tao/IIOP_Endpoint.cpp	(working copy)
@@ -11,6 +11,7 @@
 #include "tao/IOPC.h"
 #include "tao/debug.h"
 #include "tao/ORB_Core.h"
+#include "tao/IIOP_Profile.h"
 
 #include "ace/Log_Msg.h"
 #include "ace/Guard_T.h"
@@ -411,14 +412,16 @@
   return "";
 }
 
-TAO_IIOP_Endpoint*
-TAO_IIOP_Endpoint::add_local_endpoint(TAO_IIOP_Endpoint* ep, const char* local)
+TAO_IIOP_Endpoint *
+TAO_IIOP_Endpoint::add_local_endpoint(TAO_IIOP_Endpoint *ep,
+                                      const char *local,
+                                      TAO_IIOP_Profile &profile)
 {
-  TAO_Endpoint* tmp = ep->duplicate();
-  ep->next_ = static_cast<TAO_IIOP_Endpoint*>(tmp);
-  ep->next_->is_encodable_ = true;
-  ep->next_->preferred_path_.host = CORBA::string_dup(local);
-  return ep->next_;
+  TAO_IIOP_Endpoint *tmp = static_cast<TAO_IIOP_Endpoint *> (ep->duplicate ());
+  tmp->is_encodable_ = true;
+  tmp->preferred_path_.host = local;
+  profile.add_endpoint (tmp);
+  return tmp;
 }
 
 static void
@@ -519,7 +522,9 @@
 }
 
 CORBA::ULong
-TAO_IIOP_Endpoint::preferred_interfaces (const char* csv, bool enforce)
+TAO_IIOP_Endpoint::preferred_interfaces (const char *csv,
+                                         bool enforce,
+                                         TAO_IIOP_Profile &profile)
 {
   ACE_Vector<ACE_CString> preferred;
   find_preferred_interfaces(this->host_.in(), csv, preferred);
@@ -531,14 +536,14 @@
     TAO_IIOP_Endpoint* ep = this;
     for (size_t i = 1; i < count; ++i)
     {
-      ep = add_local_endpoint(ep, preferred[i].c_str());
+      ep = add_local_endpoint(ep, preferred[i].c_str(), profile);
     }
 
     // If we're not enforcing the preferred interfaces, then we can just add
     // a new non-preferred endpoint to the end with a default local addr.
     if (! enforce)
     {
-      ep = add_local_endpoint(ep, "");
+      ep = add_local_endpoint(ep, "", profile);
     }
     else
     {