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programs/perf-stat/parse: Added parsing to handle composite key
cpu_atom/cpu-cycles/ -> cpu-cycles * Explanation Hybrid Architecture Behavior: On Intel hybrid systems, if you run perf stat -e cycles without specifying the PMU (Performance Monitoring Unit), perf will automatically list cpu_core/cycles/ and cpu_atom/cycles/ separately. Explicit Targetting: Use perf stat -e cpu_atom/cpu-cycles/ to explicitly target E-cores if you are studying power efficiency or ensuring a process is running on the correct type of core. In the future, the parser may need to differentiate cpu-atom vs cpu-core values, but for now the difference is ignored. Added additional unit test under spec/fixtures/stats/perf-stat Signed-off-by: Frank Ranner <frank.ranner@intel.com> Signed-off-by: Philip Li <philip.li@intel.com>
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‎programs/perf-stat/parse‎

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stime, *fields = line.split
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end
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if fields[2].include? "/"
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# 282075081,,cpu_atom/cpu-cycles/,4046709442,100.00,,
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# 282075081,,cpu-cycles,4046709442,100.00,,
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fields[2] = fields[2][/.*\/(.*)\//,1]
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end
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return false if fields.none? { |field| events.include?(field) }
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prev_time = time

‎spec/fixtures/stats/perf-stat/5‎

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perf version 6.17.g0739473694c4
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/lkp/benchmarks/perf/perf stat -a --scale -I 1000 -x , -e {cpu-cycles,instructions,cache-references,cache-misses},{branch-instructions,branch-misses},cpu-clock,task-clock,page-faults,context-switches,cpu-migrations,minor-faults,major-faults --log-fd 1 -D 0 -- /lkp/lkp/src/bin/event/wait post-test
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1.001092774,340060066,,cpu_atom/cpu-cycles/,10031900423,100.00,,
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1.001092774,244499732,,cpu_atom/instructions/,10031900423,100.00,0.72,insn per cycle
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1.001092774,3902956,,cpu_atom/cache-references/,10031900423,100.00,,
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1.001092774,1592214,,cpu_atom/cache-misses/,10031900423,100.00,40.80,of all cache refs
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1.001092774,13478657956,,cpu_core/cpu-cycles/,12033722986,100.00,,
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1.001092774,21005840710,,cpu_core/instructions/,12033722986,100.00,1.56,insn per cycle
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1.001092774,27322569,,cpu_core/cache-references/,12033722986,100.00,,
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1.001092774,9569504,,cpu_core/cache-misses/,12033722986,100.00,35.02,of all cache refs
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1.001092774,49633333,,cpu_atom/branch-instructions/,10031902591,100.00,,
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1.001092774,1244692,,cpu_atom/branch-misses/,10031902591,100.00,2.51,of all branches
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1.001092774,4237056448,,cpu_core/branch-instructions/,12033727354,100.00,,
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1.001092774,220878478,,cpu_core/branch-misses/,12033727354,100.00,5.21,of all branches
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1.001092774,22065603430,,cpu-clock,22065611881,100.00,22.066,CPUs utilized
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1.001092774,22065625475,,task-clock,22065619765,100.00,22.066,CPUs utilized
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1.001092774,8849,,page-faults,22065634430,100.00,401.031,/sec
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1.001092774,24829,,context-switches,22065640244,100.00,1.125,K/sec
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1.001092774,108,,cpu-migrations,22065646924,100.00,4.894,/sec
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1.001092774,8849,,minor-faults,22065661338,100.00,401.031,/sec
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1.001092774,0,,major-faults,22065673597,100.00,0.000,/sec
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2.004750051,84063123,,cpu_atom/cpu-cycles/,10071621862,100.00,,
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2.004750051,65070441,,cpu_atom/instructions/,10071621862,100.00,0.77,insn per cycle
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2.004750051,2291391,,cpu_atom/cache-references/,10071621862,100.00,,
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2.004750051,1297071,,cpu_atom/cache-misses/,10071621862,100.00,56.61,of all cache refs
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2.004750051,12212552042,,cpu_core/cpu-cycles/,12073029171,100.00,,
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2.004750051,16679025052,,cpu_core/instructions/,12073029171,100.00,1.37,insn per cycle
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2.004750051,25096844,,cpu_core/cache-references/,12073029171,100.00,,
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2.004750051,8139671,,cpu_core/cache-misses/,12073029171,100.00,32.43,of all cache refs
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2.004750051,12731183,,cpu_atom/branch-instructions/,10071615618,100.00,,
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2.004750051,289273,,cpu_atom/branch-misses/,10071615618,100.00,2.27,of all branches
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2.004750051,3383388299,,cpu_core/branch-instructions/,12073017736,100.00,,
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2.004750051,213539230,,cpu_core/branch-misses/,12073017736,100.00,6.31,of all branches
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2.004750051,22144622593,,cpu-clock,22144626045,100.00,22.145,CPUs utilized
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2.004750051,22144621062,,task-clock,22144623436,100.00,22.145,CPUs utilized
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2.004750051,8373,,page-faults,22144618286,100.00,378.105,/sec
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2.004750051,24722,,context-switches,22144616132,100.00,1.116,K/sec
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2.004750051,90,,cpu-migrations,22144613803,100.00,4.064,/sec
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2.004750051,8373,,minor-faults,22144613829,100.00,378.105,/sec
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2.004750051,0,,major-faults,22144609354,100.00,0.000,/sec
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3.011943315,52517491,,cpu_atom/cpu-cycles/,10052101950,100.00,,
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3.011943315,17533477,,cpu_atom/instructions/,10052101950,100.00,0.33,insn per cycle
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3.011943315,1960639,,cpu_atom/cache-references/,10052101950,100.00,,
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3.011943315,163068,,cpu_atom/cache-misses/,10052101950,100.00,8.32,of all cache refs
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3.011943315,10926142281,,cpu_core/cpu-cycles/,12070745289,100.00,,
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3.011943315,13707673045,,cpu_core/instructions/,12070745289,100.00,1.25,insn per cycle
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3.011943315,19146228,,cpu_core/cache-references/,12070745289,100.00,,
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3.011943315,4933587,,cpu_core/cache-misses/,12070745289,100.00,25.77,of all cache refs
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3.011943315,3612078,,cpu_atom/branch-instructions/,10052103251,100.00,,
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3.011943315,313649,,cpu_atom/branch-misses/,10052103251,100.00,8.68,of all branches
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3.011943315,2711539533,,cpu_core/branch-instructions/,12070750247,100.00,,
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3.011943315,173867047,,cpu_core/branch-misses/,12070750247,100.00,6.41,of all branches
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3.011943315,22122856981,,cpu-clock,22122856980,100.00,22.123,CPUs utilized
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3.011943315,22122859438,,task-clock,22122857812,100.00,22.123,CPUs utilized
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3.011943315,162,,page-faults,22122859944,100.00,7.323,/sec
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3.011943315,26808,,context-switches,22122860513,100.00,1.212,K/sec
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3.011943315,33,,cpu-migrations,22122862539,100.00,1.492,/sec
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3.011943315,162,,minor-faults,22122861543,100.00,7.323,/sec
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3.011943315,0,,major-faults,22122864621,100.00,0.000,/sec

‎spec/fixtures/stats/perf-stat/5.yaml‎

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time: 1.001092774
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i.cpu-cycles: 13803633769.91072
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i.instructions: 21227143970.974262
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i.cache-references: 31191439.80555792
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i.cache-misses: 11149534.079046305
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i.branch-instructions: 4282010511.2455845
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i.branch-misses: 221880704.5349825
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i.cpu-clock: 22041517033.26549
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i.task-clock: 22041539054.201584
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i.page-faults: 8839.340598416906
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i.context-switches: 24801.897131663845
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i.cpu-migrations: 107.88210923596179
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i.minor-faults: 8839.340598416906
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i.major-faults: 0.0
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i.ipc: 1.5377939117194905
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i.cpi: 0.6502821947590142
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i.cache-miss-rate%: 35.74549347048608
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i.cycles-between-cache-misses: 1238.0457938464313
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i.MPKI: 0.5252489027394378
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i.branch-miss-rate%: 5.181694532329397
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i.metric.K/sec: 1.125
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time: 2.004750051
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i.cpu-cycles: 12251806913.367302
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i.instructions: 16683080845.135946
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i.cache-references: 27288433.63928502
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i.cache-misses: 9402354.983373474
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i.branch-instructions: 3383744192.1920133
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i.branch-misses: 213049322.61254358
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i.cpu-clock: 22063928694.057587
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i.task-clock: 22063927168.636475
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i.page-faults: 8342.48920610377
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i.context-switches: 24631.91426648721
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i.cpu-migrations: 89.67204449412866
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i.minor-faults: 8342.48920610377
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i.major-faults: 0.0
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i.ipc: 1.3616832980720512
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i.cpi: 0.7343851550620155
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i.cache-miss-rate%: 34.4554587033447
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i.cycles-between-cache-misses: 1303.0572590625027
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i.MPKI: 0.5635862506843146
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i.branch-miss-rate%: 6.296259720346317
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i.metric.K/sec: 1.116
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ps.cpu-cycles: 8670592523.08671
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ps.instructions: 12614591963.195696
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ps.cache-references: 19460445.921439927
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ps.cache-misses: 6838926.847466252
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ps.branch-instructions: 2550781492.0481
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ps.branch-misses: 144740995.23350427
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ps.cpu-clock: 14678306129.74202
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ps.task-clock: 14678312940.627172
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ps.page-faults: 5717.903094069352
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ps.context-switches: 16451.50483185637
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ps.cpu-migrations: 65.7382889690937
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ps.minor-faults: 5717.903094069352
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ps.major-faults: 0.0
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total.instructions: 37994435935.0
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overall.ipc: 1.4548708095332026
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overall.cpi: 0.6873462533218682
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overall.cache-miss-rate%: 35.142703692784764
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overall.cycles-between-cache-misses: 1267.8294002075884
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overall.MPKI: 0.5421441190820511
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overall.branch-miss-rate%: 5.6743784477316135

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