Squashed 'third_party/gperftools/' content from commit 54505f1
Change-Id: Id02e833828732b0efe7dac722b8485279e67c5fa
git-subtree-dir: third_party/gperftools
git-subtree-split: 54505f1d50c2d1f4676f5e87090b64a117fd980e
diff --git a/doc/overview.dot b/doc/overview.dot
new file mode 100644
index 0000000..9966f56
--- /dev/null
+++ b/doc/overview.dot
@@ -0,0 +1,15 @@
+digraph Overview {
+node [shape = box]
+
+{rank=same
+T1 [label="Thread Cache"]
+Tsep [label="...", shape=plaintext]
+Tn [label="Thread Cache"]
+T1 -> Tsep -> Tn [style=invis]
+}
+
+C [label="Central\nHeap"]
+T1 -> C [dir=both]
+Tn -> C [dir=both]
+
+}