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comparison src/share/vm/memory/allocation.cpp @ 2250:f7de3327c683

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7017124: Fix some VM stats to avoid 32-bit overflow Summary: Added new method inc_stat_counter() to increment long statistic values and use atomic long load and store. Reviewed-by: dholmes, jrose, phh, never
author kvn
date Mon, 07 Feb 2011 10:34:39 -0800
parents 79d8657be916
children 4a9604cd7c5f
comparison
equal deleted inserted replaced
2249:3763ca6579b7 2250:f7de3327c683
1 /* 1 /*
2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
155 #endif // ASSERT 155 #endif // ASSERT
156 156
157 157
158 void trace_heap_malloc(size_t size, const char* name, void* p) { 158 void trace_heap_malloc(size_t size, const char* name, void* p) {
159 // A lock is not needed here - tty uses a lock internally 159 // A lock is not needed here - tty uses a lock internally
160 tty->print_cr("Heap malloc " INTPTR_FORMAT " %7d %s", p, size, name == NULL ? "" : name); 160 tty->print_cr("Heap malloc " INTPTR_FORMAT " " SIZE_FORMAT " %s", p, size, name == NULL ? "" : name);
161 } 161 }
162 162
163 163
164 void trace_heap_free(void* p) { 164 void trace_heap_free(void* p) {
165 // A lock is not needed here - tty uses a lock internally 165 // A lock is not needed here - tty uses a lock internally
571 571
572 void AllocatedObj::print_value_on(outputStream* st) const { 572 void AllocatedObj::print_value_on(outputStream* st) const {
573 st->print("AllocatedObj(" INTPTR_FORMAT ")", this); 573 st->print("AllocatedObj(" INTPTR_FORMAT ")", this);
574 } 574 }
575 575
576 size_t Arena::_bytes_allocated = 0; 576 julong Arena::_bytes_allocated = 0;
577
578 void Arena::inc_bytes_allocated(size_t x) { inc_stat_counter(&_bytes_allocated, x); }
577 579
578 AllocStats::AllocStats() { 580 AllocStats::AllocStats() {
579 start_mallocs = os::num_mallocs; 581 start_mallocs = os::num_mallocs;
580 start_frees = os::num_frees; 582 start_frees = os::num_frees;
581 start_malloc_bytes = os::alloc_bytes; 583 start_malloc_bytes = os::alloc_bytes;
582 start_res_bytes = Arena::_bytes_allocated; 584 start_mfree_bytes = os::free_bytes;
583 } 585 start_res_bytes = Arena::_bytes_allocated;
584 586 }
585 int AllocStats::num_mallocs() { return os::num_mallocs - start_mallocs; } 587
586 size_t AllocStats::alloc_bytes() { return os::alloc_bytes - start_malloc_bytes; } 588 julong AllocStats::num_mallocs() { return os::num_mallocs - start_mallocs; }
587 size_t AllocStats::resource_bytes() { return Arena::_bytes_allocated - start_res_bytes; } 589 julong AllocStats::alloc_bytes() { return os::alloc_bytes - start_malloc_bytes; }
588 int AllocStats::num_frees() { return os::num_frees - start_frees; } 590 julong AllocStats::num_frees() { return os::num_frees - start_frees; }
591 julong AllocStats::free_bytes() { return os::free_bytes - start_mfree_bytes; }
592 julong AllocStats::resource_bytes() { return Arena::_bytes_allocated - start_res_bytes; }
589 void AllocStats::print() { 593 void AllocStats::print() {
590 tty->print("%d mallocs (%ldK), %d frees, %ldK resrc", 594 tty->print_cr(UINT64_FORMAT " mallocs (" UINT64_FORMAT "MB), "
591 num_mallocs(), alloc_bytes()/K, num_frees(), resource_bytes()/K); 595 UINT64_FORMAT" frees (" UINT64_FORMAT "MB), " UINT64_FORMAT "MB resrc",
596 num_mallocs(), alloc_bytes()/M, num_frees(), free_bytes()/M, resource_bytes()/M);
592 } 597 }
593 598
594 599
595 // debugging code 600 // debugging code
596 inline void Arena::free_all(char** start, char** end) { 601 inline void Arena::free_all(char** start, char** end) {