Mercurial > hg > graal-jvmci-8
diff src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp @ 4787:2ace1c4ee8da
6888336: G1: avoid explicitly marking and pushing objects in survivor spaces
Summary: This change simplifies the interaction between GC and concurrent marking. By disabling survivor spaces during the initial-mark pause we don't need to propagate marks of objects we copy during each GC (since we never need to copy an explicitly marked object).
Reviewed-by: johnc, brutisso
author | tonyp |
---|---|
date | Tue, 10 Jan 2012 18:58:13 -0500 |
parents | 1cbe7978b021 |
children | 9509c20bba28 |
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--- a/src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp Tue Jan 10 20:02:41 2012 +0100 +++ b/src/share/vm/gc_implementation/g1/g1CollectorPolicy.hpp Tue Jan 10 18:58:13 2012 -0500 @@ -1,5 +1,5 @@ /* - * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -67,7 +67,7 @@ define_num_seq(satb_drain) // optional define_num_seq(parallel) // parallel only define_num_seq(ext_root_scan) - define_num_seq(mark_stack_scan) + define_num_seq(satb_filtering) define_num_seq(update_rs) define_num_seq(scan_rs) define_num_seq(obj_copy) @@ -215,7 +215,7 @@ double* _par_last_gc_worker_start_times_ms; double* _par_last_ext_root_scan_times_ms; - double* _par_last_mark_stack_scan_times_ms; + double* _par_last_satb_filtering_times_ms; double* _par_last_update_rs_times_ms; double* _par_last_update_rs_processed_buffers; double* _par_last_scan_rs_times_ms; @@ -841,8 +841,8 @@ _par_last_ext_root_scan_times_ms[worker_i] = ms; } - void record_mark_stack_scan_time(int worker_i, double ms) { - _par_last_mark_stack_scan_times_ms[worker_i] = ms; + void record_satb_filtering_time(int worker_i, double ms) { + _par_last_satb_filtering_times_ms[worker_i] = ms; } void record_satb_drain_time(double ms) { @@ -1146,6 +1146,11 @@ _survivor_surv_rate_group->stop_adding_regions(); } + void tenure_all_objects() { + _max_survivor_regions = 0; + _tenuring_threshold = 0; + } + void record_survivor_regions(size_t regions, HeapRegion* head, HeapRegion* tail) {