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* MFC r285663, r285664, r285667:markj2015-07-211-3/+9
| | | | | | | | | Ensure that locstat_nsecs() has no effect when lockstat probes are not enabled or when the profiled lock carries the LO_NOPROFILE flag. PR: 201642, 201517 Approved by: re (gjb) Tested by: Jason Unovitch
* Add the OpenSolaris dtrace lockstat provider. The lockstat providersson2009-05-261-0/+64
adds probes for mutexes, reader/writer and shared/exclusive locks to gather contention statistics and other locking information for dtrace scripts, the lockstat(1M) command and other potential consumers. Reviewed by: attilio jhb jb Approved by: gnn (mentor)
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