anchor.diff:  PRESET,PAPI_L2_TCA,NOT_DERIVED,L2_RQSTS:REFERENCES
   PRESET,PAPI_L2_TCR,NOT_DERIVED,L2_RQSTS:LOADS
   #PRESET,PAPI_L2_TCW,NOT_DERIVED,L2_ST:SELF:MESI
  +#
  +PRESET,PAPI_LD_INS,NOT_DERIVED,MEM_INST_RETIRED:LOADS
  +PRESET,PAPI_SR_INS,NOT_DERIVED,MEM_INST_RETIRED:STORES
   #
   #PRESET,PAPI_CA_SHR,NOT_DERIVED,L2_RQSTS:SELF:ANY:S_STATE
   #PRESET,PAPI_CA_CLN,NOT_DERIVED,BUS_TRANS_RFO:SELF
  
positive.code: PRESET,PAPI_L2_TCA,NOT_DERIVED,L2_RQSTS:SELF:ANY:MESI
  PRESET,PAPI_L2_TCR,DERIVED_ADD,L2_LD:SELF:ANY:MESI,L2_IFETCH:SELF:MESI
  PRESET,PAPI_L2_TCW,NOT_DERIVED,L2_ST:SELF:MESI
  #
  PRESET,PAPI_CA_SHR,NOT_DERIVED,L2_RQSTS:SELF:ANY:S_STATE
  PRESET,PAPI_CA_CLN,NOT_DERIVED,BUS_TRANS_RFO:SELF
  
negative.code: CPU,Intel Core i7
  CPU,Intel Nehalem
  PRESET,PAPI_L1_DCA,NOT_DERIVED,L1D_ALL_REF:ANY
  PRESET,PAPI_L1_DCH,DERIVED_SUB,L1D_ALL_REF:ANY,L1D:REPL
  PRESET,PAPI_L1_TCA,DERIVED_ADD,L1D_ALL_REF:ANY,L1I:READS
  #
  CPU,Intel Core2
  CPU,Intel Core
  