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This commit is contained in:
Alejandro Murillo 2014-10-17 07:58:54 -07:00
commit c3b487d84f
100 changed files with 1761 additions and 2103 deletions
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60
hotspot/src/share/vm/runtime/arguments.cpp
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@ -1135,6 +1135,21 @@ static void no_shared_spaces(const char* message) {
}
#endif
// Returns threshold scaled with CompileThresholdScaling
intx Arguments::get_scaled_compile_threshold(intx threshold) {
return (intx)(threshold * CompileThresholdScaling);
}
// Returns freq_log scaled with CompileThresholdScaling
intx Arguments::get_scaled_freq_log(intx freq_log) {
intx scaled_freq = get_scaled_compile_threshold((intx)1 << freq_log);
if (scaled_freq == 0) {
return 0;
} else {
return log2_intptr(scaled_freq);
}
}
void Arguments::set_tiered_flags() {
// With tiered, set default policy to AdvancedThresholdPolicy, which is 3.
if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) {
@ -1174,6 +1189,32 @@ void Arguments::set_tiered_flags() {
Tier3InvokeNotifyFreqLog = 0;
Tier4InvocationThreshold = 0;
}
// Scale tiered compilation thresholds
if (!FLAG_IS_DEFAULT(CompileThresholdScaling)) {
FLAG_SET_ERGO(intx, Tier0InvokeNotifyFreqLog, get_scaled_freq_log(Tier0InvokeNotifyFreqLog));
FLAG_SET_ERGO(intx, Tier0BackedgeNotifyFreqLog, get_scaled_freq_log(Tier0BackedgeNotifyFreqLog));
FLAG_SET_ERGO(intx, Tier3InvocationThreshold, get_scaled_compile_threshold(Tier3InvocationThreshold));
FLAG_SET_ERGO(intx, Tier3MinInvocationThreshold, get_scaled_compile_threshold(Tier3MinInvocationThreshold));
FLAG_SET_ERGO(intx, Tier3CompileThreshold, get_scaled_compile_threshold(Tier3CompileThreshold));
FLAG_SET_ERGO(intx, Tier3BackEdgeThreshold, get_scaled_compile_threshold(Tier3BackEdgeThreshold));
// Tier2{Invocation,MinInvocation,Compile,Backedge}Threshold should be scaled here
// once these thresholds become supported.
FLAG_SET_ERGO(intx, Tier2InvokeNotifyFreqLog, get_scaled_freq_log(Tier2InvokeNotifyFreqLog));
FLAG_SET_ERGO(intx, Tier2BackedgeNotifyFreqLog, get_scaled_freq_log(Tier2BackedgeNotifyFreqLog));
FLAG_SET_ERGO(intx, Tier3InvokeNotifyFreqLog, get_scaled_freq_log(Tier3InvokeNotifyFreqLog));
FLAG_SET_ERGO(intx, Tier3BackedgeNotifyFreqLog, get_scaled_freq_log(Tier3BackedgeNotifyFreqLog));
FLAG_SET_ERGO(intx, Tier23InlineeNotifyFreqLog, get_scaled_freq_log(Tier23InlineeNotifyFreqLog));
FLAG_SET_ERGO(intx, Tier4InvocationThreshold, get_scaled_compile_threshold(Tier4InvocationThreshold));
FLAG_SET_ERGO(intx, Tier4MinInvocationThreshold, get_scaled_compile_threshold(Tier4MinInvocationThreshold));
FLAG_SET_ERGO(intx, Tier4CompileThreshold, get_scaled_compile_threshold(Tier4CompileThreshold));
FLAG_SET_ERGO(intx, Tier4BackEdgeThreshold, get_scaled_compile_threshold(Tier4BackEdgeThreshold));
}
}
/**
@ -3501,7 +3542,9 @@ jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_req
// not specified.
set_mode_flags(_int);
}
if (CompileThreshold == 0) {
if ((TieredCompilation && CompileThresholdScaling == 0)
|| (!TieredCompilation && get_scaled_compile_threshold(CompileThreshold) == 0)) {
set_mode_flags(_int);
}
@ -3739,6 +3782,8 @@ jint Arguments::parse(const JavaVMInitArgs* args) {
bool settings_file_specified = false;
bool needs_hotspotrc_warning = false;
ArgumentsExt::process_options(args);
const char* flags_file;
int index;
for (index = 0; index < args->nOptions; index++) {
@ -3926,7 +3971,20 @@ jint Arguments::apply_ergo() {
vm_exit_during_initialization(
"Incompatible compilation policy selected", NULL);
}
// Scale CompileThreshold
if (!FLAG_IS_DEFAULT(CompileThresholdScaling)) {
FLAG_SET_ERGO(intx, CompileThreshold, get_scaled_compile_threshold(CompileThreshold));
}
}
#ifdef COMPILER2
#ifndef PRODUCT
if (PrintIdealGraphLevel > 0) {
FLAG_SET_ERGO(bool, PrintIdealGraph, true);
}
#endif
#endif
// Set NmethodSweepFraction after the size of the code cache is adapted (in case of tiered)
if (FLAG_IS_DEFAULT(NmethodSweepFraction)) {
FLAG_SET_DEFAULT(NmethodSweepFraction, 1 + ReservedCodeCacheSize / (16 * M));