Use more general heuristics to set the default value of --mem-fraction-static (#10975)

Co-authored-by: sglang-bot <sglangbot@gmail.com>

test/srt/test_mla_deepseek_v3.py

@@ -3,7 +3,6 @@ import unittest
 from types import SimpleNamespace
 
 import requests
-import torch
 
 from sglang.srt.utils import is_cuda, is_hip, kill_process_tree
 from sglang.test.few_shot_gsm8k import run_eval as run_eval_few_shot_gsm8k
@@ -11,6 +10,7 @@ from sglang.test.test_utils import (
     DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
     DEFAULT_URL_FOR_TEST,
     CustomTestCase,
+    is_in_ci,
     popen_launch_server,
 )
 
@@ -50,6 +50,7 @@ class TestMLADeepseekV3(CustomTestCase):
         self.assertGreater(metrics["accuracy"], 0.62)
 
 
+@unittest.skipIf(is_in_ci(), "To reduce the CI execution time.")
 class TestMLADeepseekV3DisableFusedFunc(CustomTestCase):
     @classmethod
     def setUpClass(cls):