1 files changed, 13 insertions, 0 deletions
diff --git a/benchmark/hash_shift_u32.yml b/benchmark/hash_shift_u32.yml
new file mode 100644
index 0000000000..96e9753dde
--- /dev/null
+++ b/benchmark/hash_shift_u32.yml
@@ -0,0 +1,13 @@
+benchmark:
+  hash_shift_u32: |
+    h = {}
+
+    (0xffff4000..0xffffffff).each do |i|
+      h[i] = nil
+    end
+
+    300000.times do
+      k, v = h.shift
+      h[k] = v
+    end
+loop_count: 1