[Misc] Reduce logs on startup (#18649)

Signed-off-by: DarkLight1337 <[email protected]>

Author: DarkLight1337

vllm/model_executor/layers/quantization/fp8.py

@@ -62,10 +62,9 @@ def __init__(
         weight_block_size: Optional[list[int]] = None,
     ) -> None:
         super().__init__()
+
         self.is_checkpoint_fp8_serialized = is_checkpoint_fp8_serialized
-        if is_checkpoint_fp8_serialized:
-            logger.warning("Detected fp8 checkpoint. Please note that the "
-                           "format is experimental and subject to change.")
+
         if activation_scheme not in ACTIVATION_SCHEMES:
             raise ValueError(
                 f"Unsupported activation scheme {activation_scheme}")

vllm/platforms/__init__.py

@@ -217,11 +217,8 @@ def resolve_current_platform_cls_qualname() -> str:
             platform_cls_qualname = func()
             if platform_cls_qualname is not None:
                 activated_plugins.append(name)
-                logger.info("Platform plugin %s loaded.", name)
-            logger.warning(
-                "Platform plugin %s function's return value is None", name)
         except Exception:
-            logger.exception("Failed to load platform plugin %s", name)
+            pass
 
     activated_builtin_plugins = list(
         set(activated_plugins) & set(builtin_platform_plugins.keys()))

vllm/plugins/__init__.py

@@ -2,7 +2,7 @@
 
 import logging
 import os
-from typing import Callable
+from typing import Any, Callable
 
 import torch
 
@@ -14,7 +14,7 @@
 plugins_loaded = False
 
 
-def load_plugins_by_group(group: str) -> dict[str, Callable]:
+def load_plugins_by_group(group: str) -> dict[str, Callable[[], Any]]:
     import sys
     if sys.version_info < (3, 10):
         from importlib_metadata import entry_points
@@ -27,23 +27,27 @@ def load_plugins_by_group(group: str) -> dict[str, Callable]:
     if len(discovered_plugins) == 0:
         logger.debug("No plugins for group %s found.", group)
         return {}
+
     logger.info("Available plugins for group %s:", group)
     for plugin in discovered_plugins:
-        logger.info("name=%s, value=%s", plugin.name, plugin.value)
+        logger.info("- %s -> %s", plugin.name, plugin.value)
+
     if allowed_plugins is None:
-        logger.info("all available plugins for group %s will be loaded.",
-                    group)
-        logger.info("set environment variable VLLM_PLUGINS to control"
-                    " which plugins to load.")
-    plugins = {}
+        logger.info("All plugins in this group will be loaded. "
+                    "Set `VLLM_PLUGINS` to control which plugins to load.")
+
+    plugins = dict[str, Callable[[], Any]]()
     for plugin in discovered_plugins:
         if allowed_plugins is None or plugin.name in allowed_plugins:
+            if allowed_plugins is not None:
+                logger.info("Loading plugin %s", plugin.name)
+
             try:
                 func = plugin.load()
                 plugins[plugin.name] = func
-                logger.info("plugin %s loaded.", plugin.name)
             except Exception:
                 logger.exception("Failed to load plugin %s", plugin.name)
+
     return plugins