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diff --git a/open_issues/performance/fork.mdwn b/open_issues/performance/fork.mdwn
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--- a/open_issues/performance/fork.mdwn
+++ b/open_issues/performance/fork.mdwn
@@ -1,4 +1,4 @@
-[[!meta copyright="Copyright © 2010 Free Software Foundation, Inc."]]
+[[!meta copyright="Copyright © 2010, 2011 Free Software Foundation, Inc."]]
[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
id="license" text="Permission is granted to copy, distribute and/or modify this
@@ -14,3 +14,24 @@ Our [[`fork` implementation|glibc/fork]] is nontrivial.
To do: hard numbers.
[[Microbenchmarks]]?
+
+
+# Windows / Cygwin
+
+ * <http://www.google.com/search?q=cygwin+fork>
+
+ * <http://www.redhat.com/support/wpapers/cygnus/cygnus_cygwin/architecture.html>
+
+ In particular, *5.6. Process Creation*.
+
+ * <http://archive.gamedev.net/community/forums/topic.asp?topic_id=360290>
+
+ * <http://cygwin.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/how-cygheap-works.txt?cvsroot=src>
+
+ > Cygwin has recently adopted something called the "cygwin heap". This is
+ > an internal heap that is inherited by forked/execed children. It
+ > consists of process specific information that should be inherited. So
+ > things like the file descriptor table, the current working directory, and
+ > the chroot value live there.
+
+ * <http://www.perlmonks.org/?node_id=588994>