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8147906: G1 use of os::processor_count()

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Use os::active_processor_count() instead of os::processor_count() in G1

Reviewed-by: dholmes, jmasa
This commit is contained in:
Alexander Harlap 2016-01-28 16:05:41 -05:00
parent 888f757047
commit 68bb850835
2 changed files with 5 additions and 5 deletions
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6
hotspot/src/share/vm/gc/g1/concurrentMark.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 2016, 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
@ -489,11 +489,11 @@ ConcurrentMark::ConcurrentMark(G1CollectedHeap* g1h, G1RegionToSpaceMapper* prev
double overall_cm_overhead =
(double) MaxGCPauseMillis * marking_overhead /
(double) GCPauseIntervalMillis;
double cpu_ratio = 1.0 / (double) os::processor_count();
double cpu_ratio = 1.0 / (double) os::active_processor_count();
double marking_thread_num = ceil(overall_cm_overhead / cpu_ratio);
double marking_task_overhead =
overall_cm_overhead / marking_thread_num *
(double) os::processor_count();
(double) os::active_processor_count();
double sleep_factor =
(1.0 - marking_task_overhead) / marking_task_overhead;

4
hotspot/src/share/vm/gc/g1/dirtyCardQueue.cpp
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 2016, 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
@ -160,7 +160,7 @@ DirtyCardQueueSet::DirtyCardQueueSet(bool notify_when_complete) :
// Determines how many mutator threads can process the buffers in parallel.
uint DirtyCardQueueSet::num_par_ids() {
return (uint)os::processor_count();
return (uint)os::active_processor_count();
}
void DirtyCardQueueSet::initialize(CardTableEntryClosure* cl,