DQM output via the shared memory FUShmDQMOutputService = cms.Service("FUShmDQMOutputService", initialMessageBufferSize = cms.untracked.int32(1000000), compressionLevel = cms.int32(1), lumiSectionInterval = cms.untracked.int32(2000000), lumiSectionsPerUpdate = cms.double(1.0), useCompression = cms.bool(True) )