So as a first approximation, when compared to the Hybrid GC, the
Minimark GC saves one word of memory per old object.
-There are a number of environment variables that can be tweaked to
-influence the GC. (Their default value should be ok for most usages.)
-You can read more about them at the start of
+There are :ref:`a number of environment variables
+<minimark-environment-variables>` that can be tweaked to influence the
+GC. (Their default value should be ok for most usages.)
are preserved. If the object dies then the pre-reserved location
becomes free garbage, to be collected at the next major collection.