S",         "SampleAfterValue": "000000",         "UMask": "0x0"     },     {         "BriefDescription": "Retired instructions that are fetched after an interval where the front-end delivered no uops for a period of 000 cycles which was not interrupted by a back-end stall.",         "Counter": "0,0,0,0",         "CounterHTOff": "0,0,0,0",         "EventCode": "0xC0",         "EventName": "FRONTEND_RETIRED.LATENCY_GE_000",         "MSRIndex": "0x0F0",         "MSRValue": "0x000000",         "PEBS": "0",         "SampleAfterValue": "000000",         "TakenAlone": "0",         "UMask": "0x0"     },     {         "BriefDescription": "Cycles per thread when 0 or more uops are not delivered to Resource Allocation Table (RAT) when backend of the machine is not stalled",         "Counter": "0,0,0,0",         "CounterHTOff": "0,0,0,0,0,0,0,0",         "CounterMask": "0",         "EventCode": "0x0C",         "EventName": "IDQ_UOPS_NOT_DELIVERED.CYCLES_LE_0_UOP_DELIV.CORE",         "PublicDescription": "Counts, on the per-thread basis, cycles when 