Merge branch 'sg/git-test-boolean'

diff --git a/Documentation/technical/index-format.txt b/Documentation/technical/index-format.txt
index 6bc2d90f7f3d8357cd9b6a801b781b2f3f0628d4..7c4d67aa6a7f04f147cd89335ee0125d6912061d 100644 (file)
--- a/Documentation/technical/index-format.txt
+++ b/Documentation/technical/index-format.txt
@@ -337,3 +337,21 @@ The remaining data of each directory block is grouped by type:
 
        SHA-1("TREE" + <binary representation of N> +
                "REUC" + <binary representation of M>)
+
+== Index Entry Offset Table
+
+  The Index Entry Offset Table (IEOT) is used to help address the CPU
+  cost of loading the index by enabling multi-threading the process of
+  converting cache entries from the on-disk format to the in-memory format.
+  The signature for this extension is { 'I', 'E', 'O', 'T' }.
+
+  The extension consists of:
+
+  - 32-bit version (currently 1)
+
+  - A number of index offset entries each consisting of:
+
+    - 32-bit offset from the begining of the file to the first cache entry
+       in this block of entries.
+
+    - 32-bit count of cache entries in this block