# OPTIONS
---predict
+\--predict
: Guess the offset into each index file where a
particular object will appear, and report the maximum
deviation of the correct answer from the guess. This
is potentially useful for tuning an interpolation
search algorithm.
---ignore-midx
-: don't use .midx files, use only .idx files. This is
+\--ignore-midx
+: don't use `.midx` files, use only `.idx` files. This is
only really useful when used with `--predict`.
-# EXAMPLE
-
+# EXAMPLES
$ bup margin
- Reading indexes: 100.00% (11188299/11188299), done.
- 45
+ Reading indexes: 100.00% (1612581/1612581), done.
+ 40
+ 40 matching prefix bits
+ 1.94 bits per doubling
+ 120 bits (61.86 doublings) remaining
+ 4.19338e+18 times larger is possible
+
+ Everyone on earth could have 625878182 data sets
+ like yours, all in one repository, and we would
+ expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.