diff --git a/prepare.sh b/prepare.sh
index 32cfa4b8c88..6795558422f 100755
--- a/prepare.sh
+++ b/prepare.sh
@@ -11,3 +11,13 @@ git checkout -- .
 git checkout 341f207c1071f7290e3f228c710817c280c8dca1
 git apply ../crate_patches/regex.patch
 popd
+
+git clone https://github.com/ebobby/simple-raytracer || echo "ebobby/simple-raytracer has already been cloned"
+pushd simple-raytracer
+git checkout -- .
+git checkout 804a7a21b9e673a482797aa289a18ed480e4d813
+
+# build with cg_llvm for perf comparison
+cargo build
+mv target/debug/main raytracer_cg_llvm
+popd
diff --git a/test.sh b/test.sh
index b961069e541..3b390c386d2 100755
--- a/test.sh
+++ b/test.sh
@@ -61,6 +61,14 @@ $RUSTC example/mod_bench.rs --crate-type bin
 #echo "[BUILD] sysroot in release mode"
 #./build_sysroot/build_sysroot.sh --release
 
+pushd simple-raytracer
+echo "[BENCH] ebobby/simple-raytracer"
+cargo clean && ../cargo.sh build
+cp ./target/*/debug/main ./raytracer_cg_clif
+
+hyperfine --runs ${RUN_RUNS:-10} ./raytracer_cg_llvm ./raytracer_cg_clif
+popd
+
 pushd regex
 echo "[TEST] rust-lang/regex example shootout-regex-dna"
 ../cargo.sh clean