Add benchmark for unicode_script op.

PiperOrigin-RevId: 243111734

tensorflow/python/kernel_tests/unicode_script_op_test.py

@@ -18,10 +18,12 @@
 from __future__ import division
 from __future__ import print_function
 
+from tensorflow.python.client import session
 from tensorflow.python.framework import constant_op
 from tensorflow.python.framework import dtypes
 from tensorflow.python.framework import test_util
 from tensorflow.python.ops import string_ops
+from tensorflow.python.platform import benchmark
 from tensorflow.python.platform import test
 
 
@@ -56,5 +58,31 @@ def testInvalidScript(self):
       self.assertAllEqual(outputs, [-1, -1])
 
 
+class UnicodeScriptBenchmarks(test.Benchmark):
+
+  # Generate some random-ish input by jumping around in unicode characters
+  def _generateBenchmarkInput(self, size):
+    chars = []
+    i = 0
+    offset = 0
+    continuity_size = 20
+    while i < size:
+      chars.append(ord("a") + offset)
+      i += 1
+      offset += 1
+      if i % continuity_size == 0:
+        offset += 100
+        if offset > 0x1F940:
+          offset = 0
+
+    return chars
+
+  def benchmark_unicode_script(self):
+    with session.Session(config=benchmark.benchmark_config()) as sess:
+      chars = self._generateBenchmarkInput(1000000)
+      script = string_ops.unicode_script(chars)
+      self.run_op_benchmark(sess, script.op, min_iters=100)
+
+
 if __name__ == "__main__":
   test.main()