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root/jsr166/jsr166/src/main/java/util/concurrent/SynchronousQueue.java

Comparing jsr166/src/main/java/util/concurrent/SynchronousQueue.java (file contents):
Revision 1.116 by jsr166, Sat Sep 19 21:07:11 2015 UTC vs.
Revision 1.117 by jsr166, Sat Oct 3 17:26:56 2015 UTC

#	Line 157 | Line 157 | public class SynchronousQueue<E> extends
157		abstract E transfer(E e, boolean timed, long nanos);
158		}
159
160	–	/** The number of CPUs, for spin control */
161	–	static final int NCPUS = Runtime.getRuntime().availableProcessors();
162	–
160		/**
161		* The number of times to spin before blocking in timed waits.
162		* The value is empirically derived -- it works well across a
#	Line 167 | Line 164 | public class SynchronousQueue<E> extends
164		* seems not to vary with number of CPUs (beyond 2) so is just
165		* a constant.
166		*/
167	<	static final int MAX_TIMED_SPINS = (NCPUS < 2) ? 0 : 32;
167	>	static final int MAX_TIMED_SPINS =
168	>	(Runtime.getRuntime().availableProcessors() < 2) ? 0 : 32;
169
170		/**
171		* The number of times to spin before blocking in untimed waits.

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