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-rw-r--r--benchmark/bm_vm_thread_pass_flood.rb10
1 files changed, 10 insertions, 0 deletions
diff --git a/benchmark/bm_vm_thread_pass_flood.rb b/benchmark/bm_vm_thread_pass_flood.rb
new file mode 100644
index 0000000000..a660aafc18
--- /dev/null
+++ b/benchmark/bm_vm_thread_pass_flood.rb
@@ -0,0 +1,10 @@
+# n.b. this is a good test for GVL when pinned to a single CPU
+
+1000.times{
+ Thread.new{loop{Thread.pass}}
+}
+
+i = 0
+while i<10000
+ i += 1
+end