prefer batch_size in batched async methods

adlfs/spec.py

@@ -297,7 +297,11 @@ def __init__(
         if self.credential is not None:
             weakref.finalize(self, sync, self.loop, close_credential, self)
 
-        self.max_concurrency = max_concurrency or (_get_batch_size() // 4)
+        if max_concurrency is None:
+            batch_size = _get_batch_size()
+            if batch_size > 0:
+                max_concurrency = batch_size
+        self.max_concurrency = max_concurrency
 
     @classmethod
     def _strip_protocol(cls, path: str):
@@ -1453,6 +1457,12 @@ async def _pipe_file(
 
     pipe_file = sync_wrapper(_pipe_file)
 
+    async def _pipe(self, *args, batch_size=None, max_concurrency=None, **kwargs):
+        max_concurrency = max_concurrency or 1
+        return await super()._pipe(
+            *args, batch_size=batch_size, max_concurrency=max_concurrency, **kwargs
+        )
+
     async def _cat_file(
         self, path, start=None, end=None, max_concurrency=None, **kwargs
     ):
@@ -1512,6 +1522,12 @@ def cat(self, path, recursive=False, on_error="raise", **kwargs):
         else:
             return self.cat_file(paths[0])
 
+    async def _cat_ranges(self, *args, batch_size=None, max_concurrency=None, **kwargs):
+        max_concurrency = max_concurrency or 1
+        return await super()._cat_ranges(
+            *args, batch_size=batch_size, max_concurrency=max_concurrency, **kwargs
+        )
+
     def url(self, path, expires=3600, **kwargs):
         return sync(self.loop, self._url, path, expires, **kwargs)
 
@@ -1656,6 +1672,12 @@ async def _put_file(
 
     put_file = sync_wrapper(_put_file)
 
+    async def _put(self, *args, batch_size=None, max_concurrency=None, **kwargs):
+        max_concurrency = max_concurrency or 1
+        return await super()._put(
+            *args, batch_size=batch_size, max_concurrency=max_concurrency, **kwargs
+        )
+
     async def _cp_file(self, path1, path2, **kwargs):
         """Copy the file at path1 to path2"""
         container1, path1, version_id = self.split_path(path1, delimiter="/")
@@ -1722,6 +1744,12 @@ async def _get_file(
 
     get_file = sync_wrapper(_get_file)
 
+    async def _get(self, *args, batch_size=None, max_concurrency=None, **kwargs):
+        max_concurrency = max_concurrency or 1
+        return await super()._get(
+            *args, batch_size=batch_size, max_concurrency=max_concurrency, **kwargs
+        )
+
     def getxattr(self, path, attr):
         meta = self.info(path).get("metadata", {})
         return meta[attr]