Manually unroll calls to avoid loop overhead

Author: tekknolagi

benchmarks/send_bmethod.rb

@@ -5,7 +5,24 @@
 define_method(:one) { |arg| arg }
 
 run_benchmark(500) do
-  2_000_000.times do |i|
+  500_000.times do |i|
+    # Manually unrolling to avoid loop overhead
+    zero
+    one 123
+    zero
+    one 123
+    zero
+    one 123
+    zero
+    one 123
+    zero
+    one 123
+    zero
+    one 123
+    zero
+    one 123
+    zero
+    one 123
     zero
     one 123
   end

benchmarks/send_cfunc_block.rb

@@ -3,10 +3,31 @@
 ARR = []
 
 run_benchmark(500) do
-  2_000_000.times do |i|
+  500_000.times do |i|
     # each is a 0-arg cfunc
     ARR.each {}
     # index is a variadic cfunc
+    # Manually unrolling to avoid loop overhead
+    ARR.index {}
+    ARR.each {}
+    ARR.index {}
+    ARR.each {}
+    ARR.index {}
+    ARR.each {}
+    ARR.index {}
+    ARR.each {}
+    ARR.index {}
+    ARR.each {}
+    ARR.index {}
+    ARR.each {}
+    ARR.index {}
+    ARR.each {}
+    ARR.index {}
+    ARR.each {}
+    ARR.index {}
+    ARR.each {}
+    ARR.index {}
+    ARR.each {}
     ARR.index {}
   end
 end

benchmarks/send_rubyfunc_block.rb

@@ -9,7 +9,16 @@ def ruby_func
 INSTANCE = C.new
 
 run_benchmark(500) do
-  2_000_000.times do |i|
+  500_000.times do |i|
+    # Manually unrolling to avoid loop overhead
+    INSTANCE.ruby_func {}
+    INSTANCE.ruby_func {}
+    INSTANCE.ruby_func {}
+    INSTANCE.ruby_func {}
+    INSTANCE.ruby_func {}
+    INSTANCE.ruby_func {}
+    INSTANCE.ruby_func {}
+    INSTANCE.ruby_func {}
     INSTANCE.ruby_func {}
   end
 end