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-rw-r--r--benchmark/bm_vm1_gc_wb_obj.rb13
1 files changed, 13 insertions, 0 deletions
diff --git a/benchmark/bm_vm1_gc_wb_obj.rb b/benchmark/bm_vm1_gc_wb_obj.rb
new file mode 100644
index 0000000..60548ac
--- /dev/null
+++ b/benchmark/bm_vm1_gc_wb_obj.rb
@@ -0,0 +1,13 @@
+class C
+ attr_accessor :foo
+end
+long_lived = C.new
+GC.start
+GC.start
+
+i = 0
+short_lived = ''
+while i<30_000_000 # while loop 1
+ long_lived.foo = short_lived # write barrier
+ i+=1
+end