C2 compilation speedup of late barrier expansion over early barrier expansion for G1

early barrier expansion

late barrier expansion

platform

benchmark

size

speed (bc/s)

error (bc/s)

speed (bc/s)

error (bc/s)

significant (α = 0.01)

speedup

linux-x64

fop

default

63455

112

78299

127

true

1.23x

linux-x64

h2

large

67396

499

77835

618

true

1.15x

linux-x64

jython

large

58908

239

72961

272

true

1.24x

linux-x64

luindex

default

64902

136

79807

168

true

1.23x

linux-x64

lusearch

large

79395

135

94813

174

true

1.19x

linux-x64

pmd

large

58423

716

71579

725

true

1.23x

linux-x64

sunflow

large

57637

490

64759

566

true

1.12x

linux-x64

xalan

large

59118

661

74423

612

true

1.26x

macosx-aarch64

fop

default

115113

149

145689

196

true

1.27x

macosx-aarch64

h2

large

122143

1762

143625

2170

true

1.18x

macosx-aarch64

jython

large

102730

190

121595

217

true

1.18x

macosx-aarch64

luindex

default

124253

200

148503

221

true

1.20x

macosx-aarch64

lusearch

large

146310

325

167066

445

true

1.14x

macosx-aarch64

pmd

large

106160

917

126950

971

true

1.20x

macosx-aarch64

sunflow

large

114303

1064

129707

1003

true

1.13x

macosx-aarch64

xalan

large

105881

1033

127406

1076

true

1.20x

mean

1.20x

(benchmarks from the DaCapo 9.12-bach suite)