Add performance tests for the loadDataViewsInRows:columns: in view-based examples and in cell-based example CPTableCibTest. You need to re-build the fmw if you want to compare before/after view-based API.

Tests/Manual/TableTest/CPTableView+Debug.j

@@ -0,0 +1,100 @@
+
+@implementation CPTableView (Patcher)
+
++ (void)profileViewLoading
+{
+    after.c = after.t = after.tpr = 0;
+    [[self class] patchMethod:@selector(_loadDataViewsInRows:columns:) beforeFunction:before afterFunction:after];
+}
+
+@end
+
+var before = function (receiver, selector, args)
+{
+    before.s = new Date();
+};
+
+var after = function(receiver, selector, args)
+{
+    var d = (new Date() - before.s);
+    var rc = [args[0] count];
+    if (d > 0 && rc > 0)
+    {
+        after.t += d;
+        after.c ++;
+        after.tpr += d/rc;
+    }
+
+    console.log (after.c + " _loadDataViewsInRows:columns: " + rc + " rows in " + d + " ms ; avg since start / per row = " + (ROUND(100 * after.tpr/after.c) / 100) + " ms");
+};
+
+@implementation CPObject (Patcher)
+
++ (void)debugMethod:(SEL)aSelector
+{
+    var before = function (receiver, selector, args)
+    {
+        CPLogConsole("BEFORE : " + receiver + " " + selector + " " + args);
+    };
+
+    var after = function (receiver, selector, args)
+    {
+        CPLogConsole("AFTER : " + receiver + " " + selector + " " + args);
+    };
+
+    [self patchMethod:aSelector beforeFunction:before afterFunction:after];
+}
+
++ (void)patchMethod:(SEL)aSelector beforeFunction:(Function)before afterFunction:(Function)after
+{
+    if (before == nil) before = function(){}; 
+    if (after == nil) after = function(){}; 
+    
+    var patched_sel = CPSelectorFromString("patched_" + CPStringFromSelector(aSelector));
+    class_addMethod(self, patched_sel, function()
+    {
+        var orig_arguments = arguments,
+            receiver = orig_arguments[0],
+            cmd = orig_arguments[1];
+            
+            var args = [];
+            for (var i = 2; i < orig_arguments.length; i++)
+                args.push(orig_arguments[i]);
+
+        orig_arguments[1] = patched_sel;
+
+        before(receiver, cmd, args);
+        objj_msgSend.apply(objj_msgSend, orig_arguments);
+        after(receiver, cmd, args);
+    }, "");
+
+    Swizzle(self, aSelector, patched_sel);
+}
+
+@end
+
+function Swizzle (aClass, orig_sel, new_sel)
+{
+    var origMethod = class_getInstanceMethod(aClass, orig_sel),
+        newMethod = class_getInstanceMethod(aClass, new_sel);
+
+// This check should be in class_addMethod : Don't add and return NO and if method already exists.
+    var method_list = aClass.method_list,
+        count = method_list.length,
+        shouldAddMethod = YES;
+
+    while (count--)
+        if (method_list[count].name == orig_sel)
+        {
+            shouldAddMethod = NO;
+            break;
+        }
+
+    if (shouldAddMethod)
+    {
+        class_addMethod(aClass, orig_sel, method_getImplementation(newMethod), "");
+        class_replaceMethod(aClass, new_sel, method_getImplementation(origMethod), "");
+    }
+    else
+        method_exchangeImplementations(origMethod, newMethod);
+}

Tests/Manual/TableTest/CPTableViewLionCibTest/AppController.j

@@ -7,7 +7,7 @@
  */
 
 @import <Foundation/CPObject.j>
-
+@import "../CPTableView+Debug.j"
 
 @implementation AppController : CPObject
 {
@@ -36,7 +36,8 @@
 
     var data = [[CPData alloc] initWithRawString:dataString],
         theRows = [CPPropertyListSerialization propertyListFromData:data format:CPPropertyListXMLFormat_v1_0];
-
+    
+     [CPTableView profileViewLoading];
      [self setContent:theRows];
 }
 

Tests/Manual/TableTest/CPTableViewViewBased/AppController.j

@@ -7,6 +7,7 @@
  */
 
 @import <Foundation/CPObject.j>
+@import "../CPTableView+Debug.j"
 
 @implementation AppController : CPObject
 {
@@ -54,6 +55,8 @@
     [contentView addSubview:scrollView];
 
     [theWindow orderFront:self];
+    
+    [CPTableView profileViewLoading];
 }
 
 - (void)buildModel // For the editable view aka the slider
@@ -113,4 +116,5 @@
     return view;
 }
 
-@end
+@end
+

Tests/Manual/TableTest/TableCibTest/AppController.j

@@ -7,6 +7,7 @@
  */
 
 @import <Foundation/CPObject.j>
+@import "../CPTableView+Debug.j"
 
 CPLogRegister(CPLogConsole);
 
@@ -29,6 +30,7 @@ CPLogRegister(CPLogConsole);
 
     // In this case, we want the window from Cib to become our full browser window
     [theWindow setFullBridge:YES];
+    [CPTableView profileViewLoading];
 }
 
 - (int)numberOfRowsInTableView:(CPTableView)tableView