Split test_intel_amx_attention_backend.py to pass CI of timeout (#11370)

Co-authored-by: Ma Mingfei <mingfei.ma@intel.com>

test/srt/cpu/test_intel_amx_attention_backend_c.py

@@ -0,0 +1,53 @@
+"""
+For intel_amx attention backend w8a8 tests
+Usage:
+python3 -m unittest test_intel_amx_attention_backend_2.TestIntelAMXAttnBackendQuant.test_latency_w8a8_default_model
+"""
+
+import unittest
+
+from sglang.test.test_utils import (
+    DEFAULT_MODEL_NAME_FOR_TEST_W8A8,
+    DEFAULT_MODEL_NAME_FOR_TEST_W8A8_WITH_MOE,
+    CustomTestCase,
+    intel_amx_benchmark,
+)
+
+
+class TestIntelAMXAttnBackendQuant(CustomTestCase):
+
+    @intel_amx_benchmark(
+        extra_args=[
+            "--batch-size",
+            "4",
+            "--quantization",
+            "w8a8_int8",
+            "--mem-fraction-static",
+            "0.1",
+        ],
+        min_throughput=100,
+    )
+    def test_latency_w8a8_default_model(self):
+        return DEFAULT_MODEL_NAME_FOR_TEST_W8A8
+
+    @intel_amx_benchmark(
+        extra_args=[
+            "--batch-size",
+            "4",
+            "--quantization",
+            "w8a8_int8",
+            "--mem-fraction-static",
+            "0.9",
+            "--max-total-tokens",
+            "65536",
+            "--tp",
+            "6",
+        ],
+        min_throughput=100,
+    )
+    def test_latency_w8a8_moe_model(self):
+        return DEFAULT_MODEL_NAME_FOR_TEST_W8A8_WITH_MOE
+
+
+if __name__ == "__main__":
+    unittest.main()