Merge 1f11b200cd into b08debceca

Added a cheap file size comparison before the expensive file hash comparison.
This should considerably improve average-case performance.

server.py

@@ -420,11 +420,19 @@ class PromptServer():
                 if overwrite is not None and (overwrite == "true" or overwrite == "1"):
                     pass
                 else:
+                    # Get uploaded file size once
+                    image.file.seek(0, 2)  # Seek to end
+                    uploaded_size = image.file.tell()
+                    image.file.seek(0)  # Reset to beginning
+
                     i = 1
                     while os.path.exists(filepath):
-                        if compare_image_hash(filepath, image): #compare hash to prevent saving of duplicates with same name, fix for #3465
-                            image_is_duplicate = True
-                            break
+                        # Quick size comparison first
+                        existing_size = os.path.getsize(filepath)
+                        if existing_size == uploaded_size:
+                            if compare_image_hash(filepath, image): #compare hash to prevent saving of duplicates with same name, fix for #3465
+                                image_is_duplicate = True
+                                break
                         filename = f"{split[0]} ({i}){split[1]}"
                         filepath = os.path.join(full_output_folder, filename)
                         i += 1