src/share/vm/gc_implementation/g1/g1RemSetSummary.cpp
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@@ -123,58 +123,139 @@
}
_sampling_thread_vtime = other->sampling_thread_vtime() - _sampling_thread_vtime;
}
-class HRRSStatsIter: public HeapRegionClosure {
+double percent_of(size_t numerator, size_t denominator) {
+ if (denominator != 0) {
+ return (double)numerator / denominator * 100.0f;
+ } else {
+ return 0.0f;
+ }
+}
+
+class RegionTypeCounter VALUE_OBJ_CLASS_SPEC {
+private:
+ size_t _mem_size;
size_t _occupied;
- size_t _total_mem_sz;
+ size_t _amount;
+
+ double mem_size_percent_of(size_t total) {
+ return percent_of(_mem_size, total);
+ }
+
+ double occupied_percent_of(size_t total) {
+ return percent_of(_occupied, total);
+ }
+
+ size_t amount() const { return _amount; }
+
+public:
+
+ RegionTypeCounter() : _mem_size(0), _occupied(0), _amount(0) { }
+
+ void add(size_t mem_size, size_t occupied) {
+ _mem_size += mem_size;
+ _occupied += occupied;
+ _amount++;
+ }
+
+ size_t mem_size() const { return _mem_size; }
+ size_t occupied() const { return _occupied; }
+
+ void print_mem_info_on(outputStream * out, size_t total, char const * type) {
+ out->print_cr(" %8dK (%5.1f%%) by %zd %s regions", mem_size()/K, mem_size_percent_of(total), amount(), type);
+ }
+
+ void print_occupied_info_on(outputStream * out, size_t total, char const * type) {
+ out->print_cr(" %8d (%5.1f%%) entries by %zd %s regions", occupied(), occupied_percent_of(total), amount(), type);
+ }
+};
+
+
+class HRRSStatsIter: public HeapRegionClosure {
+private:
size_t _max_mem_sz;
HeapRegion* _max_mem_sz_region;
+
+ RegionTypeCounter _young;
+ RegionTypeCounter _humonguous;
+ RegionTypeCounter _free;
+ RegionTypeCounter _old;
+ RegionTypeCounter _all;
+
+ size_t total_mem_sz() { return _all.mem_size(); }
+ size_t max_mem_sz() { return _max_mem_sz; }
+ size_t occupied() { return _all.occupied(); }
+ HeapRegion* max_mem_sz_region() { return _max_mem_sz_region; }
+
public:
- HRRSStatsIter() :
- _occupied(0),
- _total_mem_sz(0),
- _max_mem_sz(0),
- _max_mem_sz_region(NULL)
+ HRRSStatsIter() : _max_mem_sz(0), _max_mem_sz_region(NULL),
+ _all(), _young(), _humonguous(), _free(), _old()
{}
bool doHeapRegion(HeapRegion* r) {
size_t mem_sz = r->rem_set()->mem_size();
if (mem_sz > _max_mem_sz) {
_max_mem_sz = mem_sz;
_max_mem_sz_region = r;
}
- _total_mem_sz += mem_sz;
size_t occ = r->rem_set()->occupied();
- _occupied += occ;
+
+ _all.add(mem_sz, occ);
+ if (r->is_young()) {
+ _young.add(mem_sz, occ);
+ } else if (r->isHumongous()) {
+ _humonguous.add(mem_sz, occ);
+ } else if (r->is_empty()) {
+ _free.add(mem_sz, occ);
+ } else {
+ _old.add(mem_sz, occ);
+ }
+
return false;
}
- size_t total_mem_sz() { return _total_mem_sz; }
- size_t max_mem_sz() { return _max_mem_sz; }
- size_t occupied() { return _occupied; }
- HeapRegion* max_mem_sz_region() { return _max_mem_sz_region; }
-};
-double calc_percentage(size_t numerator, size_t denominator) {
- if (denominator != 0) {
- return (double)numerator / denominator * 100.0;
- } else {
- return 0.0f;
+ void print_summary_on(outputStream* out) {
+ out->print_cr(" Total heap region rem set sizes = "SIZE_FORMAT"K."
+ " Max = "SIZE_FORMAT"K.",
+ total_mem_sz() / K, max_mem_sz() / K);
+ _young.print_mem_info_on(out, total_mem_sz(), "Young");
+ _humonguous.print_mem_info_on(out, total_mem_sz(), "Humonguous");
+ _free.print_mem_info_on(out, total_mem_sz(), "Free");
+ _old.print_mem_info_on(out, total_mem_sz(), "Old");
+ out->print_cr(" Static structures = "SIZE_FORMAT"K,"
+ " free_lists = "SIZE_FORMAT"K.",
+ HeapRegionRemSet::static_mem_size() / K,
+ HeapRegionRemSet::fl_mem_size() / K);
+
+ out->print_cr(" "SIZE_FORMAT" occupied cards represented.",
+ occupied());
+ _young.print_occupied_info_on(out, occupied(), "Young");
+ _humonguous.print_occupied_info_on(out, occupied(), "Humonguous");
+ _free.print_occupied_info_on(out, occupied(), "Free");
+ _old.print_occupied_info_on(out, occupied(), "Old");
+
+ HeapRegionRemSet* rem_set = max_mem_sz_region()->rem_set();
+ out->print_cr(" Max size region = "HR_FORMAT", "
+ "size = "SIZE_FORMAT "K, occupied = "SIZE_FORMAT"K.",
+ HR_FORMAT_PARAMS(max_mem_sz_region()),
+ (rem_set->mem_size() + K - 1) / K,
+ (rem_set->occupied() + K - 1) / K);
}
-}
+};
void G1RemSetSummary::print_on(outputStream* out) {
out->print_cr("\n Concurrent RS processed "SIZE_FORMAT" cards",
num_concurrent_refined_cards());
out->print_cr(" Of %d completed buffers:", num_processed_buf_total());
out->print_cr(" %8d (%5.1f%%) by concurrent RS threads.",
num_processed_buf_total(),
- calc_percentage(num_processed_buf_rs_threads(), num_processed_buf_total()));
+ percent_of(num_processed_buf_rs_threads(), num_processed_buf_total()));
out->print_cr(" %8d (%5.1f%%) by mutator threads.",
num_processed_buf_mutator(),
- calc_percentage(num_processed_buf_mutator(), num_processed_buf_total()));
+ percent_of(num_processed_buf_mutator(), num_processed_buf_total()));
out->print_cr(" Concurrent RS threads times (s)");
out->print(" ");
for (uint i = 0; i < _num_vtimes; i++) {
out->print(" %5.2f", rs_thread_vtime(i));
}
@@ -182,24 +263,9 @@
out->print_cr(" Concurrent sampling threads times (s)");
out->print_cr(" %5.2f", sampling_thread_vtime());
HRRSStatsIter blk;
G1CollectedHeap::heap()->heap_region_iterate(&blk);
- out->print_cr(" Total heap region rem set sizes = "SIZE_FORMAT"K."
- " Max = "SIZE_FORMAT"K.",
- blk.total_mem_sz()/K, blk.max_mem_sz()/K);
- out->print_cr(" Static structures = "SIZE_FORMAT"K,"
- " free_lists = "SIZE_FORMAT"K.",
- HeapRegionRemSet::static_mem_size() / K,
- HeapRegionRemSet::fl_mem_size() / K);
- out->print_cr(" "SIZE_FORMAT" occupied cards represented.",
- blk.occupied());
- HeapRegion* max_mem_sz_region = blk.max_mem_sz_region();
- HeapRegionRemSet* rem_set = max_mem_sz_region->rem_set();
- out->print_cr(" Max size region = "HR_FORMAT", "
- "size = "SIZE_FORMAT "K, occupied = "SIZE_FORMAT"K.",
- HR_FORMAT_PARAMS(max_mem_sz_region),
- (rem_set->mem_size() + K - 1)/K,
- (rem_set->occupied() + K - 1)/K);
+ blk.print_summary_on(out);
out->print_cr(" Did %d coarsenings.", num_coarsenings());
}