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src/share/vm/gc_implementation/parallelScavenge/psPromotionManager.inline.hpp
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rev 8910 : full patch for jfr
*** 1,7 ****
/*
! * Copyright (c) 2002, 2014, 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
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
--- 1,7 ----
/*
! * Copyright (c) 2002, 2019, 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
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*** 62,71 ****
--- 62,99 ----
assert(Universe::heap()->is_in(p), "pointer outside heap");
claim_or_forward_internal_depth(p);
}
+ inline void PSPromotionManager::promotion_trace_event(oop new_obj, oop old_obj,
+ size_t obj_size,
+ uint age, bool tenured,
+ const PSPromotionLAB* lab) {
+ assert(EnableJFR, "sanity check");
+ // Skip if memory allocation failed
+ if (new_obj != NULL) {
+ const ParallelScavengeTracer* gc_tracer = PSScavenge::gc_tracer();
+
+ if (lab != NULL) {
+ // Promotion of object through newly allocated PLAB
+ if (gc_tracer->should_report_promotion_in_new_plab_event()) {
+ size_t obj_bytes = obj_size * HeapWordSize;
+ size_t lab_size = lab->capacity();
+ gc_tracer->report_promotion_in_new_plab_event(old_obj->klass(), obj_bytes,
+ age, tenured, lab_size);
+ }
+ } else {
+ // Promotion of object directly to heap
+ if (gc_tracer->should_report_promotion_outside_plab_event()) {
+ size_t obj_bytes = obj_size * HeapWordSize;
+ gc_tracer->report_promotion_outside_plab_event(old_obj->klass(), obj_bytes,
+ age, tenured);
+ }
+ }
+ }
+ }
+
//
// This method is pretty bulky. It would be nice to split it up
// into smaller submethods, but we need to be careful not to hurt
// performance.
//
*** 96,114 ****
--- 124,148 ----
if (new_obj == NULL && !_young_gen_is_full) {
// Do we allocate directly, or flush and refill?
if (new_obj_size > (YoungPLABSize / 2)) {
// Allocate this object directly
new_obj = (oop)young_space()->cas_allocate(new_obj_size);
+ if (EnableJFR) {
+ promotion_trace_event(new_obj, o, new_obj_size, age, false, NULL);
+ }
} else {
// Flush and fill
_young_lab.flush();
HeapWord* lab_base = young_space()->cas_allocate(YoungPLABSize);
if (lab_base != NULL) {
_young_lab.initialize(MemRegion(lab_base, YoungPLABSize));
// Try the young lab allocation again.
new_obj = (oop) _young_lab.allocate(new_obj_size);
+ if (EnableJFR) {
+ promotion_trace_event(new_obj, o, new_obj_size, age, false, &_young_lab);
+ }
} else {
_young_gen_is_full = true;
}
}
}
*** 125,139 ****
--- 159,182 ----
new_obj = (oop) _old_lab.allocate(new_obj_size);
new_obj_is_tenured = true;
if (new_obj == NULL) {
+ uint age = 0;
+ if (EnableJFR) {
+ // Find the objects age, MT safe.
+ age = (test_mark->has_displaced_mark_helper() /* o->has_displaced_mark() */) ?
+ test_mark->displaced_mark_helper()->age() : test_mark->age();
+ }
if (!_old_gen_is_full) {
// Do we allocate directly, or flush and refill?
if (new_obj_size > (OldPLABSize / 2)) {
// Allocate this object directly
new_obj = (oop)old_gen()->cas_allocate(new_obj_size);
+ if (EnableJFR) {
+ promotion_trace_event(new_obj, o, new_obj_size, age, true, NULL);
+ }
} else {
// Flush and fill
_old_lab.flush();
HeapWord* lab_base = old_gen()->cas_allocate(OldPLABSize);
*** 146,155 ****
--- 189,201 ----
}
#endif
_old_lab.initialize(MemRegion(lab_base, OldPLABSize));
// Try the old lab allocation again.
new_obj = (oop) _old_lab.allocate(new_obj_size);
+ if (EnableJFR) {
+ promotion_trace_event(new_obj, o, new_obj_size, age, true, &_old_lab);
+ }
}
}
}
// This is the promotion failed test, and code handling.
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