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6668573: CMS: reference processing crash if ParallelCMSThreads > ParallelGCThreads

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Use _max_num_q = max(discovery_degree, processing_degree), and let balance_queues() redistribute from discovery_degree to processing_degree of queues. This should also allow a more dynamic and flexible parallelism policy in the future.

Reviewed-by: jmasa, johnc
This commit is contained in:
Y. Srinivas Ramakrishna 2011-03-17 10:32:46 -07:00
parent 7293fabc43
commit b4b287e7ac
13 changed files with 148 additions and 153 deletions
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4
hotspot/src/share/vm/utilities/workgroup.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 2011, 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
@ -156,7 +156,7 @@ void WorkGang::run_task(AbstractGangTask* task) {
tty->print_cr("/nFinished work gang %s: %d/%d sequence %d",
name(), finished_workers(), total_workers(),
_sequence_number);
}
}
}
void AbstractWorkGang::stop() {