Reflected a small change of API in commonlib.parallel.PerformanceMonitor
Reflected a small change of API in commonlib.parallel.PerformanceMonitor


Former-commit-id: da0d7b7afc196c8f46baac52a0fff74e035f50db [formerly 67d71c47feb371fd64eef7359b980a35decdb258]
Former-commit-id: 4947bef4f14cc0372df5e799d07acc827011c156
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine