Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/memory/threadLocalAllocBuffer.cpp
src/share/vm/memory/threadLocalAllocBuffer.cpp
- changeset 10015
- eb7ce841ccec
- parent 9448
- 73d689add964
- parent 9965
- c39172598323
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| 9934:2251ba078bec | 10015:eb7ce841ccec |
|---|---|
| 1 /* | 1 /* |
| 2 * Copyright (c) 1999, 2018, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 1999, 2020, 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. |
| 86 // _gc_waste is not subtracted because it's included in | 86 // _gc_waste is not subtracted because it's included in |
| 87 // "used". | 87 // "used". |
| 88 // The result can be larger than 1.0 due to direct to old allocations. | 88 // The result can be larger than 1.0 due to direct to old allocations. |
| 89 // These allocations should ideally not be counted but since it is not possible | 89 // These allocations should ideally not be counted but since it is not possible |
| 90 // to filter them out here we just cap the fraction to be at most 1.0. | 90 // to filter them out here we just cap the fraction to be at most 1.0. |
| 91 double alloc_frac = MIN2(1.0, (double) allocated_since_last_gc / used); | 91 // Keep alloc_frac as float and not double to avoid the double to float conversion |
| 92 float alloc_frac = MIN2(1.0f, allocated_since_last_gc / (float) used); | |
| 92 _allocation_fraction.sample(alloc_frac); | 93 _allocation_fraction.sample(alloc_frac); |
| 93 } | 94 } |
| 94 global_stats()->update_allocating_threads(); | 95 global_stats()->update_allocating_threads(); |
| 95 global_stats()->update_number_of_refills(_number_of_refills); | 96 global_stats()->update_number_of_refills(_number_of_refills); |
| 96 global_stats()->update_allocation(_number_of_refills * desired_size()); | 97 global_stats()->update_allocation(_number_of_refills * desired_size()); |
| 203 // Following check is needed because at startup the main | 204 // Following check is needed because at startup the main |
| 204 // thread is initialized before the heap is. The initialization for | 205 // thread is initialized before the heap is. The initialization for |
| 205 // this thread is redone in startup_initialization below. | 206 // this thread is redone in startup_initialization below. |
| 206 if (Universe::heap() != NULL) { | 207 if (Universe::heap() != NULL) { |
| 207 size_t capacity = Universe::heap()->tlab_capacity(myThread()) / HeapWordSize; | 208 size_t capacity = Universe::heap()->tlab_capacity(myThread()) / HeapWordSize; |
| 208 double alloc_frac = desired_size() * target_refills() / (double) capacity; | 209 // Keep alloc_frac as float and not double to avoid the double to float conversion |
| 210 float alloc_frac = desired_size() * target_refills() / (float) capacity; | |
| 209 _allocation_fraction.sample(alloc_frac); | 211 _allocation_fraction.sample(alloc_frac); |
| 210 } | 212 } |
| 211 | 213 |
| 212 set_refill_waste_limit(initial_refill_waste_limit()); | 214 set_refill_waste_limit(initial_refill_waste_limit()); |
| 213 | 215 |
