Optimisation of the DQM software

The Data Quality Monitoring (DQM) Software proved to be a central tool in the CMS experiment. Its flexibility allowed its integration in several environments: Online, for real-time detector monitoring; Offline, for the final, fine-grained Data Certification; Release Validation, to constantly validate the functionality and the performance of the reconstruction soft- ware; in Monte Carlo productions [1, 2, 3]. The resources used by the different DQM software systems, both in terms of time and memory, are ever-growing. Having in mind the next to come LHC phases, the improvement of the perfor- mance of the DQM and Validation code will make possible the validation of extreme condition scenarios (events with high number of pileup vertices).