From 26def5392f6f6364aa0939a2d4fc7705e786d38d Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Fri, 29 Oct 2010 14:44:02 +0000
Subject: * Document Boehm GC support.

---
 doc/manual/env-common.xml | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'doc/manual/env-common.xml')

diff --git a/doc/manual/env-common.xml b/doc/manual/env-common.xml
index d67ef714d0f9..99acc5949044 100644
--- a/doc/manual/env-common.xml
+++ b/doc/manual/env-common.xml
@@ -271,6 +271,17 @@ $ mount -o bind /mnt/otherdisk/nix /nix</screen>
 
 </varlistentry>
 
+
+<varlistentry><term><envar>GC_INITIAL_HEAP_SIZE</envar></term>
+
+  <listitem><para>If Nix has been configured to use the Boehm garbage
+  collector, this variable sets the initial size of the heap in bytes.
+  It defaults to 384 MiB.  Setting it to a low value reduces memory
+  consumption, but will increase runtime due to the overhead of
+  garbage collection.</para></listitem>
+
+</varlistentry>
+
     
 </variablelist>
 
-- 
cgit 1.4.1