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8000351: Tenuring threshold should be unsigned

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Change the flags and variables related to tenuring threshold to be unsigned

Reviewed-by: jmasa, johnc
This commit is contained in:
Jesper Wilhelmsson 2012-10-03 20:31:41 +02:00
parent 88ab075a6d
commit 3506d44c57
22 changed files with 55 additions and 55 deletions
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4
hotspot/src/share/vm/gc_implementation/shared/adaptiveSizePolicy.cpp
View file

@ -642,7 +642,7 @@ bool AdaptiveSizePolicy::print_adaptive_size_policy_on(outputStream* st) const {
bool AdaptiveSizePolicy::print_adaptive_size_policy_on(
outputStream* st,
int tenuring_threshold_arg) const {
uint tenuring_threshold_arg) const {
if (!AdaptiveSizePolicy::print_adaptive_size_policy_on(st)) {
return false;
}
@ -663,7 +663,7 @@ bool AdaptiveSizePolicy::print_adaptive_size_policy_on(
assert(!tenuring_threshold_change(), "(no change was attempted)");
}
if (tenuring_threshold_changed) {
st->print_cr("%d", tenuring_threshold_arg);
st->print_cr("%u", tenuring_threshold_arg);
}
return true;
}

4
hotspot/src/share/vm/gc_implementation/shared/adaptiveSizePolicy.hpp
View file

@ -489,8 +489,8 @@ class AdaptiveSizePolicy : public CHeapObj<mtGC> {
// Printing support
virtual bool print_adaptive_size_policy_on(outputStream* st) const;
bool print_adaptive_size_policy_on(outputStream* st, int
tenuring_threshold) const;
bool print_adaptive_size_policy_on(outputStream* st,
uint tenuring_threshold) const;
};
// Class that can be used to print information about the

10
hotspot/src/share/vm/gc_implementation/shared/ageTable.cpp
View file

@ -78,10 +78,10 @@ void ageTable::merge_par(ageTable* subTable) {
}
}
int ageTable::compute_tenuring_threshold(size_t survivor_capacity) {
uint ageTable::compute_tenuring_threshold(size_t survivor_capacity) {
size_t desired_survivor_size = (size_t)((((double) survivor_capacity)*TargetSurvivorRatio)/100);
size_t total = 0;
int age = 1;
uint age = 1;
assert(sizes[0] == 0, "no objects with age zero should be recorded");
while (age < table_size) {
total += sizes[age];
@ -90,13 +90,13 @@ int ageTable::compute_tenuring_threshold(size_t survivor_capacity) {
if (total > desired_survivor_size) break;
age++;
}
int result = age < MaxTenuringThreshold ? age : MaxTenuringThreshold;
uint result = age < MaxTenuringThreshold ? age : MaxTenuringThreshold;
if (PrintTenuringDistribution || UsePerfData) {
if (PrintTenuringDistribution) {
gclog_or_tty->cr();
gclog_or_tty->print_cr("Desired survivor size %ld bytes, new threshold %d (max %d)",
gclog_or_tty->print_cr("Desired survivor size %ld bytes, new threshold %u (max %u)",
desired_survivor_size*oopSize, result, MaxTenuringThreshold);
}
@ -106,7 +106,7 @@ int ageTable::compute_tenuring_threshold(size_t survivor_capacity) {
total += sizes[age];
if (sizes[age] > 0) {
if (PrintTenuringDistribution) {
gclog_or_tty->print_cr("- age %3d: %10ld bytes, %10ld total",
gclog_or_tty->print_cr("- age %3u: %10ld bytes, %10ld total",
age, sizes[age]*oopSize, total*oopSize);
}
}

4
hotspot/src/share/vm/gc_implementation/shared/ageTable.hpp
View file

@ -55,7 +55,7 @@ class ageTable VALUE_OBJ_CLASS_SPEC {
// add entry
void add(oop p, size_t oop_size) {
int age = p->age();
uint age = p->age();
assert(age > 0 && age < table_size, "invalid age of object");
sizes[age] += oop_size;
}
@ -66,7 +66,7 @@ class ageTable VALUE_OBJ_CLASS_SPEC {
void merge_par(ageTable* subTable);
// calculate new tenuring threshold based on age information
int compute_tenuring_threshold(size_t survivor_capacity);
uint compute_tenuring_threshold(size_t survivor_capacity);
private:
PerfVariable* _perf_sizes[table_size];

2
hotspot/src/share/vm/gc_implementation/shared/gcAdaptivePolicyCounters.hpp
View file

@ -188,7 +188,7 @@ class GCAdaptivePolicyCounters : public GCPolicyCounters {
inline void update_survivor_overflowed(bool survivor_overflowed) {
_survivor_overflowed_counter->set_value(survivor_overflowed);
}
inline void update_tenuring_threshold(int threshold) {
inline void update_tenuring_threshold(uint threshold) {
tenuring_threshold()->set_value(threshold);
}
inline void update_increment_tenuring_threshold_for_gc_cost() {