150 if (used_before_gc >= _used_at_prologue) {
151 size_t promoted_in_bytes = used_before_gc - _used_at_prologue;
152 gc_stats()->avg_promoted()->sample(promoted_in_bytes);
153 }
154 }
155 }
156
157 void TenuredGeneration::update_counters() {
158 if (UsePerfData) {
159 _space_counters->update_all();
160 _gen_counters->update_all();
161 }
162 }
163
164 bool TenuredGeneration::promotion_attempt_is_safe(size_t max_promotion_in_bytes) const {
165 size_t available = max_contiguous_available();
166 size_t av_promo = (size_t)gc_stats()->avg_promoted()->padded_average();
167 bool res = (available >= av_promo) || (available >= max_promotion_in_bytes);
168 if (PrintGC && Verbose) {
169 gclog_or_tty->print_cr(
170 "Tenured: promo attempt is%s safe: available("SIZE_FORMAT") %s av_promo("SIZE_FORMAT"),"
171 "max_promo("SIZE_FORMAT")",
172 res? "":" not", available, res? ">=":"<",
173 av_promo, max_promotion_in_bytes);
174 }
175 return res;
176 }
177
178 void TenuredGeneration::collect(bool full,
179 bool clear_all_soft_refs,
180 size_t size,
181 bool is_tlab) {
182 GenCollectedHeap* gch = GenCollectedHeap::heap();
183
184 // Temporarily expand the span of our ref processor, so
185 // refs discovery is over the entire heap, not just this generation
186 ReferenceProcessorSpanMutator
187 x(ref_processor(), gch->reserved_region());
188
189 STWGCTimer* gc_timer = GenMarkSweep::gc_timer();
190 gc_timer->register_gc_start();
191
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150 if (used_before_gc >= _used_at_prologue) {
151 size_t promoted_in_bytes = used_before_gc - _used_at_prologue;
152 gc_stats()->avg_promoted()->sample(promoted_in_bytes);
153 }
154 }
155 }
156
157 void TenuredGeneration::update_counters() {
158 if (UsePerfData) {
159 _space_counters->update_all();
160 _gen_counters->update_all();
161 }
162 }
163
164 bool TenuredGeneration::promotion_attempt_is_safe(size_t max_promotion_in_bytes) const {
165 size_t available = max_contiguous_available();
166 size_t av_promo = (size_t)gc_stats()->avg_promoted()->padded_average();
167 bool res = (available >= av_promo) || (available >= max_promotion_in_bytes);
168 if (PrintGC && Verbose) {
169 gclog_or_tty->print_cr(
170 "Tenured: promo attempt is%s safe: available(" SIZE_FORMAT ") %s av_promo(" SIZE_FORMAT "),"
171 "max_promo(" SIZE_FORMAT ")",
172 res? "":" not", available, res? ">=":"<",
173 av_promo, max_promotion_in_bytes);
174 }
175 return res;
176 }
177
178 void TenuredGeneration::collect(bool full,
179 bool clear_all_soft_refs,
180 size_t size,
181 bool is_tlab) {
182 GenCollectedHeap* gch = GenCollectedHeap::heap();
183
184 // Temporarily expand the span of our ref processor, so
185 // refs discovery is over the entire heap, not just this generation
186 ReferenceProcessorSpanMutator
187 x(ref_processor(), gch->reserved_region());
188
189 STWGCTimer* gc_timer = GenMarkSweep::gc_timer();
190 gc_timer->register_gc_start();
191
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