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Allow G1 for javac workers. #12598

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Allow G1 for javac workers. #12598

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16 changes: 10 additions & 6 deletions tools/jdk/default_java_toolchain.bzl
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Original file line number Diff line number Diff line change
Expand Up @@ -80,11 +80,13 @@ JVM8_TOOLCHAIN_CONFIGURATION = dict(

DEFAULT_TOOLCHAIN_CONFIGURATION = dict(
jvm_opts = [
# In JDK9 we have seen a ~30% slow down in JavaBuilder performance when using
# G1 collector and having compact strings enabled.
"-XX:+UseParallelOldGC",
# Compact strings make JavaBuilder slightly slower.
"-XX:-CompactStrings",
] + JDK9_JVM_OPTS,
turbine_jvm_opts = [
# Turbine is not a worker and parallel GC is faster for short-lived programs.
"-XX:+UseParallelOldGC",
],
tools = [
"@remote_java_tools//:java_compiler_jar",
"@remote_java_tools//:jdk_compiler_jar",
Expand Down Expand Up @@ -118,11 +120,13 @@ VANILLA_TOOLCHAIN_CONFIGURATION = dict(
# platform.
PREBUILT_TOOLCHAIN_CONFIGURATION = dict(
jvm_opts = [
# In JDK9 we have seen a ~30% slow down in JavaBuilder performance when using
# G1 collector and having compact strings enabled.
"-XX:+UseParallelOldGC",
# Compact strings make JavaBuilder slightly slower.
"-XX:-CompactStrings",
] + JDK9_JVM_OPTS,
turbine_jvm_opts = [
# Turbine is not a worker and parallel GC is faster for short-lived programs.
"-XX:+UseParallelOldGC",
],
tools = [
"@remote_java_tools//:java_compiler_jar",
"@remote_java_tools//:jdk_compiler_jar",
Expand Down