inline HeapRegion*
G1CollectedHeap::heap_region_containing(const T addr) const {
HeapRegion* hr = _hrs.addr_to_region((HeapWord*) addr);
// hr can be null if addr in perm_gen
if (hr != NULL && hr->continuesHumongous()) {
hr = hr->humongous_start_region();
}
return hr;
}
void HeapRegionSeq::print_empty_runs() {
int empty_run = 0;
int n_empty = 0;
int empty_run_start;
for (int i = 0; i < _regions.length(); i++) {
HeapRegion* r = _regions.at(i);
if (r->continuesHumongous()) continue;
if (r->is_empty()) {
assert(!r->isHumongous(), "H regions should not be empty.");
if (empty_run == 0) empty_run_start = i;
empty_run++;
n_empty++;
} else {
if (empty_run > 0) {
gclog_or_tty->print(" %d:%d", empty_run_start, empty_run);
empty_run = 0;
}
}
}
if (empty_run > 0) {
gclog_or_tty->print(" %d:%d", empty_run_start, empty_run);
}
gclog_or_tty->print_cr(" [tot = %d]", n_empty);
}