Tensorboard callback by default should disable profiling.

Whether perform profiling should be at user's discretion.

PiperOrigin-RevId: 396394295

keras/api/golden/v2/tensorflow.keras.callbacks.-tensor-board.pbtxt

@@ -6,7 +6,7 @@ tf_class {
   is_instance: "<type \'object\'>"
   member_method {
     name: "__init__"
-    argspec: "args=[\'self\', \'log_dir\', \'histogram_freq\', \'write_graph\', \'write_images\', \'write_steps_per_second\', \'update_freq\', \'profile_batch\', \'embeddings_freq\', \'embeddings_metadata\'], varargs=None, keywords=kwargs, defaults=[\'logs\', \'0\', \'True\', \'False\', \'False\', \'epoch\', \'2\', \'0\', \'None\'], "
+    argspec: "args=[\'self\', \'log_dir\', \'histogram_freq\', \'write_graph\', \'write_images\', \'write_steps_per_second\', \'update_freq\', \'profile_batch\', \'embeddings_freq\', \'embeddings_metadata\'], varargs=None, keywords=kwargs, defaults=[\'logs\', \'0\', \'True\', \'False\', \'False\', \'epoch\', \'0\', \'0\', \'None\'], "
   }
   member_method {
     name: "on_batch_begin"

keras/callbacks.py

@@ -2073,8 +2073,7 @@ class TensorBoard(Callback, version_utils.TensorBoardVersionSelector):
       profile_batch: Profile the batch(es) to sample compute characteristics.
         profile_batch must be a non-negative integer or a tuple of integers.
         A pair of positive integers signify a range of batches to profile.
-        By default, it will profile the second batch. Set profile_batch=0
-        to disable profiling.
+        By default, profiling is disabled.
       embeddings_freq: frequency (in epochs) at which embedding layers will be
         visualized. If set to 0, embeddings won't be visualized.
       embeddings_metadata: Dictionary which maps embedding layer names to the
@@ -2159,7 +2158,7 @@ class TensorBoard(Callback, version_utils.TensorBoardVersionSelector):
                write_images=False,
                write_steps_per_second=False,
                update_freq='epoch',
-               profile_batch=2,
+               profile_batch=0,
                embeddings_freq=0,
                embeddings_metadata=None,
                **kwargs):