|
|
@@ -1,5 +1,8 @@
|
|
|
+.. _z3fold:
|
|
|
+
|
|
|
+======
|
|
|
z3fold
|
|
|
-------
|
|
|
+======
|
|
|
|
|
|
z3fold is a special purpose allocator for storing compressed pages.
|
|
|
It is designed to store up to three compressed pages per physical page.
|
|
|
@@ -7,6 +10,7 @@ It is a zbud derivative which allows for higher compression
|
|
|
ratio keeping the simplicity and determinism of its predecessor.
|
|
|
|
|
|
The main differences between z3fold and zbud are:
|
|
|
+
|
|
|
* unlike zbud, z3fold allows for up to PAGE_SIZE allocations
|
|
|
* z3fold can hold up to 3 compressed pages in its page
|
|
|
* z3fold doesn't export any API itself and is thus intended to be used
|
Mike Rapoport