Ruby with YJIT

Related: Benchmark for performance testing, Taxonomy of Ruby Calls for optimization strategies, Ractor for parallel execution

Code Patching

Global Invalidation

def number one
	one = 1
	one
end
 
TracePoint.new(:line) do
	it.binding.local_variable_set(:one, 5 * 10 ** 15)
end.enable
 
p number $ 5000000000000000

Invalidated on Escaped Locals

def nuber
	one = 1
	do_something
	one
end
 
def do_something
	require 'binding_of_caller'
	binding.of_caller(1).local_variable_set(:one, 5 * 10 ** 15)
end
 
p number

Test array

class Array
with_yjit do
undef :each
 
def each
Primitive.attr! :inline_block, :c_trace
 
end
end