Make cp's buffer size larger and configurable.

zopefoundation · Feb 10, 2018 · 0fdc7e2 · 0fdc7e2
1 parent 26a04c7
commit 0fdc7e2
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/ZODB/utils.py b/src/ZODB/utils.py
@@ -95,7 +95,7 @@ def u64(v):
 U64 = u64
 
 
-def cp(f1, f2, length=None):
+def cp(f1, f2, length=None, bufsize=1 << 16):
     """Copy all data from one file to another.
 
     It copies the data from the current position of the input file (f1)
@@ -106,7 +106,7 @@ def cp(f1, f2, length=None):
     """
     read = f1.read
     write = f2.write
-    n = 8192
+    n = bufsize
 
     if length is None:
         old_pos = f1.tell()