make wait for server print periodic status messages and increase time…

…out for shortfin

app_tests/integration_tests/llm/shortfin/conftest.py

@@ -150,6 +150,7 @@ def llm_server(request, model_test_dir, write_config):
         vmfb_path,
         parameters_path,
         settings,
+        timeout=300,
     )
     logger.info("LLM server started!" + end_log_group())
     yield server_process, port

app_tests/integration_tests/llm/utils.py

@@ -129,16 +129,21 @@ def find_available_port():
         return port
 
 
-def wait_for_server(url, timeout=10):
+def wait_for_server(url, timeout):
     logger.info(f"Waiting for server to start at {url}...")
     start = time.time()
-    while time.time() - start < timeout:
+    elapsed = 0
+    while elapsed <= timeout:
         try:
             requests.get(f"{url}/health")
             logger.info("Server successfully started")
             return
         except requests.exceptions.ConnectionError:
+            logger.info(
+                "Server has not started yet; waited {elapsed} seconds, giving up in timeout: {timeout} seconds."
+            )
             time.sleep(1)
+        elapsed = time.time() - start
     raise TimeoutError(f"Server did not start within {timeout} seconds at {url}")