--- rtorrent-0.8.6/doc/rtorrent.rc.fallocate	2009-11-12 09:03:41.000000000 +0100
+++ rtorrent-0.8.6/doc/rtorrent.rc	2010-10-15 10:47:40.760491844 +0200
@@ -106,3 +106,9 @@
 # before forcing. Overworked systems might need lower values to get a
 # decent hash checking rate.
 #hash_max_tries = 10
+
+# preallocate files; reduces defragmentation on filesystems that support this
+#   e.g. ext4, btrfs
+# DO NOT enable on ext3!
+# see http://libtorrent.rakshasa.no/ticket/460 for details
+# system.file_allocate.set = yes