src/share/vm/gc_implementation/g1/g1RemSetSummary.cpp
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*** 123,160 ****
}
_sampling_thread_vtime = other->sampling_thread_vtime() - _sampling_thread_vtime;
}
! class HRRSStatsIter: public HeapRegionClosure {
size_t _occupied;
! size_t _total_mem_sz;
size_t _max_mem_sz;
HeapRegion* _max_mem_sz_region;
public:
! HRRSStatsIter() :
! _occupied(0),
! _total_mem_sz(0),
! _max_mem_sz(0),
! _max_mem_sz_region(NULL)
{}
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;
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;
--- 123,249 ----
}
_sampling_thread_vtime = other->sampling_thread_vtime() - _sampling_thread_vtime;
}
! class RegionTypeCounter {
! private:
! size_t _mem_size;
size_t _occupied;
! size_t _amount;
!
! static double percent_of(size_t* value, size_t total) {
! if (total != 0) {
! return ((double)*value / total) * 100.0f;
! } else {
! return 0.0f;
! }
! }
!
! 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() : _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;
}
size_t occ = r->rem_set()->occupied();
!
! _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;
}
!
! 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);
! }
};
double calc_percentage(size_t numerator, size_t denominator) {
if (denominator != 0) {
return (double)numerator / denominator * 100.0;
*** 182,205 ****
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);
out->print_cr(" Did %d coarsenings.", num_coarsenings());
}
--- 271,279 ----
out->print_cr(" Concurrent sampling threads times (s)");
out->print_cr(" %5.2f", sampling_thread_vtime());
HRRSStatsIter blk;
G1CollectedHeap::heap()->heap_region_iterate(&blk);
! blk.print_summary_on(out);
out->print_cr(" Did %d coarsenings.", num_coarsenings());
}