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1 function spin_loop() |
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2 { |
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3 for (let i = 0; i < 10000; i++) ; |
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4 } |
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5 |
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6 function check_timing(label, count) { |
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7 if (count == -1) { |
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8 print("TEST-UNEXPECTED-FAIL | TestPerf | " + label); |
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9 throwError(); |
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10 } else { |
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11 print("TEST-PASS | TestPerf | " + label + " = " + count); |
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12 } |
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13 } |
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14 |
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15 var pm = new PerfMeasurement(PerfMeasurement.ALL); |
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16 if (pm.eventsMeasured == 0) { |
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17 print("TEST-KNOWN-FAIL | perf-smoketest | stub, skipping test"); |
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18 } else { |
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19 pm.start(); |
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20 spin_loop(); |
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21 pm.stop(); |
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22 |
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23 check_timing("cpu_cycles", pm.cpu_cycles); |
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24 check_timing("instructions", pm.instructions); |
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25 check_timing("cache_references", pm.cache_references); |
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26 check_timing("cache_misses", pm.cache_misses); |
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27 check_timing("branch_instructions", pm.branch_instructions); |
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28 check_timing("branch_misses", pm.branch_misses); |
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29 check_timing("bus_cycles", pm.bus_cycles); |
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30 check_timing("page_faults", pm.page_faults); |
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31 check_timing("major_page_faults", pm.major_page_faults); |
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32 check_timing("context_switches", pm.context_switches); |
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33 check_timing("cpu_migrations", pm.cpu_migrations); |
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34 } |