Fix start_of_intervals regex for stats aggregation
Fix start_of_intervals regex for stats aggregation

datastax/cstar_perf,mambocab/cstar_perf,mambocab/cstar_perf,mambocab/cstar_perf,datastax/cstar_perf,mambocab/cstar_perf,datastax/cstar_perf,datastax/cstar_perf