Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp
src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp
- changeset 2336
- 6cd6d394f280
- parent 2314
- f95d63e2154a
- child 2445
- 7246a374a9f2
- child 2452
- 4947ee68d19c
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replaced
| 2335:459fad165e5e | 2336:6cd6d394f280 |
|---|---|
| 894 | 894 |
| 895 bool ConcurrentMarkSweepGeneration::promotion_attempt_is_safe(size_t max_promotion_in_bytes) const { | 895 bool ConcurrentMarkSweepGeneration::promotion_attempt_is_safe(size_t max_promotion_in_bytes) const { |
| 896 size_t available = max_available(); | 896 size_t available = max_available(); |
| 897 size_t av_promo = (size_t)gc_stats()->avg_promoted()->padded_average(); | 897 size_t av_promo = (size_t)gc_stats()->avg_promoted()->padded_average(); |
| 898 bool res = (available >= av_promo) || (available >= max_promotion_in_bytes); | 898 bool res = (available >= av_promo) || (available >= max_promotion_in_bytes); |
| 899 if (PrintGC && Verbose) { | 899 if (Verbose && PrintGCDetails) { |
| 900 gclog_or_tty->print_cr( | 900 gclog_or_tty->print_cr( |
| 901 "CMS: promo attempt is%s safe: available("SIZE_FORMAT") %s av_promo("SIZE_FORMAT")," | 901 "CMS: promo attempt is%s safe: available("SIZE_FORMAT") %s av_promo("SIZE_FORMAT")," |
| 902 "max_promo("SIZE_FORMAT")", | 902 "max_promo("SIZE_FORMAT")", |
| 903 res? "":" not", available, res? ">=":"<", | 903 res? "":" not", available, res? ">=":"<", |
| 904 av_promo, max_promotion_in_bytes); | 904 av_promo, max_promotion_in_bytes); |
| 1560 // this is not likely to be productive in practice because it's probably too | 1560 // this is not likely to be productive in practice because it's probably too |
| 1561 // late anyway. | 1561 // late anyway. |
| 1562 GenCollectedHeap* gch = GenCollectedHeap::heap(); | 1562 GenCollectedHeap* gch = GenCollectedHeap::heap(); |
| 1563 assert(gch->collector_policy()->is_two_generation_policy(), | 1563 assert(gch->collector_policy()->is_two_generation_policy(), |
| 1564 "You may want to check the correctness of the following"); | 1564 "You may want to check the correctness of the following"); |
| 1565 if (gch->incremental_collection_will_fail()) { | 1565 if (gch->incremental_collection_will_fail(true /* consult_young */)) { |
| 1566 if (PrintGCDetails && Verbose) { | 1566 if (Verbose && PrintGCDetails) { |
| 1567 gclog_or_tty->print("CMSCollector: collect because incremental collection will fail "); | 1567 gclog_or_tty->print("CMSCollector: collect because incremental collection will fail "); |
| 1568 } | 1568 } |
| 1569 return true; | 1569 return true; |
| 1570 } | 1570 } |
| 1571 | 1571 |
| 1925 GenCollectedHeap* gch = GenCollectedHeap::heap(); | 1925 GenCollectedHeap* gch = GenCollectedHeap::heap(); |
| 1926 assert(gch->collector_policy()->is_two_generation_policy(), | 1926 assert(gch->collector_policy()->is_two_generation_policy(), |
| 1927 "You may want to check the correctness of the following"); | 1927 "You may want to check the correctness of the following"); |
| 1928 // Inform cms gen if this was due to partial collection failing. | 1928 // Inform cms gen if this was due to partial collection failing. |
| 1929 // The CMS gen may use this fact to determine its expansion policy. | 1929 // The CMS gen may use this fact to determine its expansion policy. |
| 1930 if (gch->incremental_collection_will_fail()) { | 1930 if (gch->incremental_collection_will_fail(false /* don't consult_young */)) { |
| 1931 assert(!_cmsGen->incremental_collection_failed(), | 1931 assert(!_cmsGen->incremental_collection_failed(), |
| 1932 "Should have been noticed, reacted to and cleared"); | 1932 "Should have been noticed, reacted to and cleared"); |
| 1933 _cmsGen->set_incremental_collection_failed(); | 1933 _cmsGen->set_incremental_collection_failed(); |
| 1934 } | 1934 } |
| 1935 *should_compact = | 1935 *should_compact = |
| 1936 UseCMSCompactAtFullCollection && | 1936 UseCMSCompactAtFullCollection && |
| 1937 ((_full_gcs_since_conc_gc >= CMSFullGCsBeforeCompaction) || | 1937 ((_full_gcs_since_conc_gc >= CMSFullGCsBeforeCompaction) || |
| 1938 GCCause::is_user_requested_gc(gch->gc_cause()) || | 1938 GCCause::is_user_requested_gc(gch->gc_cause()) || |
| 1939 gch->incremental_collection_will_fail()); | 1939 gch->incremental_collection_will_fail(true /* consult_young */)); |
| 1940 *should_start_over = false; | 1940 *should_start_over = false; |
| 1941 if (clear_all_soft_refs && !*should_compact) { | 1941 if (clear_all_soft_refs && !*should_compact) { |
| 1942 // We are about to do a last ditch collection attempt | 1942 // We are about to do a last ditch collection attempt |
| 1943 // so it would normally make sense to do a compaction | 1943 // so it would normally make sense to do a compaction |
| 1944 // to reclaim as much space as possible. | 1944 // to reclaim as much space as possible. |
