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8213224: Move code related to GC threads calculation out of AdaptiveSizePolicy

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Consolidate code related to GC threads calculation into a single class

Reviewed-by: tschatzl, pliden
This commit is contained in:
Man Cao 2018-12-07 12:46:31 +08:00
parent 714b05023e
commit df4b7015bf
18 changed files with 387 additions and 306 deletions
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10
src/hotspot/cpu/sparc/vm_version_sparc.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2018, 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
@ -365,8 +365,12 @@ public:
// this properly in order to enable complete page size support.
static uint page_size_count() { return 2; }
// Calculates the number of parallel threads
static unsigned int calc_parallel_worker_threads();
// Override default denominator for ParallelGCThreads.
//
// FIXME: Simply checking the processor family is insufficient.
static uint parallel_worker_threads_denominator() {
return is_post_niagara() ? 16 : 8;
}
};
#endif // CPU_SPARC_VM_VM_VERSION_SPARC_HPP