ruby--ruby/benchmark/bm_vm1_gc_wb_obj_promoted.rb

class C
  attr_accessor :foo
end
long_lived = C.new

if RUBY_VERSION >= "2.2.0"
  3.times{ GC.start(full_mark: false, immediate_mark: true, lazy_sweep: false) }
elsif
  GC.start
end

i = 0
short_lived = ''
while i<30_000_000 # while loop 1
  long_lived.foo = short_lived # write barrier
  i+=1
end
* benchmark/bm_vm1_gc_wb_ary(_promoted).rb: separate fastpath and slowpath for WB. Before this change bm_vm1_gc_wb_ary.rb tried to check the performance for WB slowpath (making a reference from oldobj to newobj). However, from Ruby 2.2, 3 GCs are needed to promote new objects because only 3 age objects are promted objects. To compare fastpath and slowpath, introduce new "promoted" version benchmark. bm_vm1_gc_wb_ary.rb is for fastpath and bm_vm1_gc_wb_ary_promoted.rb is for slowpath. * benchmark/bm_vm1_gc_wb_obj(_promtoed).rb: ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49985 b2dd03c8-39d4-4d8f-98ff-823fe69b080e 2015-03-17 05:57:47 -04:00			`class C`
			`attr_accessor :foo`
			`end`
			`long_lived = C.new`

* benchmark/bm_vm1_gc_wb_ary.rb: run GC to finish "marking" phase. * benchmark/bm_vm1_gc_wb_obj.rb: ditto. * benchmark/bm_vm1_gc_wb_ary_promoted.rb: add parameter full_mark: false to invoke only minor GC. * benchmark/bm_vm1_gc_wb_obj_promoted.rb: ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50002 b2dd03c8-39d4-4d8f-98ff-823fe69b080e 2015-03-18 01:15:08 -04:00			`if RUBY_VERSION >= "2.2.0"`
			`3.times{ GC.start(full_mark: false, immediate_mark: true, lazy_sweep: false) }`
* benchmark/bm_vm1_gc_wb_ary(_promoted).rb: separate fastpath and slowpath for WB. Before this change bm_vm1_gc_wb_ary.rb tried to check the performance for WB slowpath (making a reference from oldobj to newobj). However, from Ruby 2.2, 3 GCs are needed to promote new objects because only 3 age objects are promted objects. To compare fastpath and slowpath, introduce new "promoted" version benchmark. bm_vm1_gc_wb_ary.rb is for fastpath and bm_vm1_gc_wb_ary_promoted.rb is for slowpath. * benchmark/bm_vm1_gc_wb_obj(_promtoed).rb: ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49985 b2dd03c8-39d4-4d8f-98ff-823fe69b080e 2015-03-17 05:57:47 -04:00			`elsif`
			`GC.start`
			`end`

			`i = 0`
			`short_lived = ''`
			`while i<30_000_000 # while loop 1`
			`long_lived.foo = short_lived # write barrier`
			`i+=1`
			`end`