Fixed performance_monitor_test
Fixed performance_monitor_test


Former-commit-id: 2567588fa9b9bce10b702ff96189d83bd8cf2175 [formerly 3376ba5f22d89734174f02d4752a8be9f54b0a73]
Former-commit-id: 03b01805f74d9e61243c946ff61add9159a580ba
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine