diff --git a/doc/make_cheatsheet.md b/doc/make_cheatsheet.md
index c511b293c1..376e617a54 100644
--- a/doc/make_cheatsheet.md
+++ b/doc/make_cheatsheet.md
@@ -94,3 +94,7 @@ Note that `test-coverage.dat` accumulates all runs of `make test-all`.
 Make sure that you remove the file if you want to measure one test run.
 
 You can see the coverage result of CI: https://rubyci.org/coverage
+
+## How to benchmark
+
+see <../benchmark/README.md>