Mercurial > jdk8-mips64-public > hotspot / changeset

     1.1 --- a/src/share/vm/memory/threadLocalAllocBuffer.cpp	Wed Jul 29 09:43:43 2020 +0200
     1.2 +++ b/src/share/vm/memory/threadLocalAllocBuffer.cpp	Mon Mar 23 17:57:13 2020 +0000
     1.3 @@ -1,5 +1,5 @@
     1.4  /*
     1.5 - * Copyright (c) 1999, 2018, Oracle and/or its affiliates. All rights reserved.
     1.6 + * Copyright (c) 1999, 2020, Oracle and/or its affiliates. All rights reserved.
     1.7   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.8   *
     1.9   * This code is free software; you can redistribute it and/or modify it
    1.10 @@ -88,7 +88,8 @@
    1.11        // The result can be larger than 1.0 due to direct to old allocations.
    1.12        // These allocations should ideally not be counted but since it is not possible
    1.13        // to filter them out here we just cap the fraction to be at most 1.0.
    1.14 -      double alloc_frac = MIN2(1.0, (double) allocated_since_last_gc / used);
    1.15 +      // Keep alloc_frac as float and not double to avoid the double to float conversion
    1.16 +      float alloc_frac = MIN2(1.0f, allocated_since_last_gc / (float) used);
    1.17        _allocation_fraction.sample(alloc_frac);
    1.18      }
    1.19      global_stats()->update_allocating_threads();
    1.20 @@ -205,7 +206,8 @@
    1.21    // this thread is redone in startup_initialization below.
    1.22    if (Universe::heap() != NULL) {
    1.23      size_t capacity   = Universe::heap()->tlab_capacity(myThread()) / HeapWordSize;
    1.24 -    double alloc_frac = desired_size() * target_refills() / (double) capacity;
    1.25 +    // Keep alloc_frac as float and not double to avoid the double to float conversion
    1.26 +    float alloc_frac = desired_size() * target_refills() / (float) capacity;
    1.27      _allocation_fraction.sample(alloc_frac);
    1.28    }
    1.29