Set default chunk size to 500MB

wtsi-ssg · Nov 14, 2014 · 1f488e9 · 1f488e9
1 parent d88e6c4
commit 1f488e9
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diff --git a/README b/README
@@ -75,7 +75,7 @@ pcp has a number of useful options; use pcp -h to see a description.
 Chunking
 --------
 
-pcp will split files up into 100MB chunks, which can then be copied in 
+pcp will split files up into 500MB chunks, which can then be copied in 
 parallel. Files smaller than the chunk size will be copied in one go. You can 
 alter the chunk size with the -b flag. The size is in megabytes. For optimal 
 performance the chunk size should be a whole multiple of the lustre stripe size

diff --git a/pcp b/pcp
@@ -175,7 +175,7 @@ machines as possible to prevent local network bottlenecks.
 
     parser.add_argument("-b", 
                         help="Copy files larger than C Mbytes in C Mbyte chunks",
-                        default=50, type=int, metavar="C")
+                        default=500, type=int, metavar="C")
 
     parser.add_argument("-c", help="verify copy with checksum", default=False,
                         action="store_true")