--- libev/ev.pod	2007/11/27 10:59:11	1.50
+++ libev/ev.pod	2007/11/27 19:23:31	1.51
@@ -1999,6 +1999,13 @@
 speed, define this symbol to C<1>. Currently only used for gcc to override
 some inlining decisions, saves roughly 30% codesize of amd64.
 
+=item EV_PID_HASHSIZE
+
+C<ev_child> watchers use a small hash table to distribute workload by
+pid. The default size is C<16> (or C<1> with C<EV_MINIMAL>), usually more
+than enough. If you need to manage thousands of children you might want to
+increase this value.
+
 =item EV_COMMON
 
 By default, all watchers have a C<void *data> member. By redefining