libpmc: Prefer fixed counters in Intel event aliases.
It is recommended by Intel to use fixed counters when possible to leave programmable ones for different events. This fixes `pmc stat`, which tries to count 6 events same time, while many Intel CPUs have only 4 programmable counters. MFC after: 1 month
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@ -60,8 +60,8 @@ typedef enum {
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} pmu_mfr_t;
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static struct pmu_alias pmu_intel_alias_table[] = {
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{"UNHALTED_CORE_CYCLES", "CPU_CLK_UNHALTED.THREAD_P_ANY"},
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{"UNHALTED-CORE-CYCLES", "CPU_CLK_UNHALTED.THREAD_P_ANY"},
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{"UNHALTED_CORE_CYCLES", "cpu_clk_unhalted.thread"},
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{"UNHALTED-CORE-CYCLES", "cpu_clk_unhalted.thread"},
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{"LLC_MISSES", "LONGEST_LAT_CACHE.MISS"},
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{"LLC-MISSES", "LONGEST_LAT_CACHE.MISS"},
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{"LLC_REFERENCE", "LONGEST_LAT_CACHE.REFERENCE"},
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@ -74,8 +74,8 @@ static struct pmu_alias pmu_intel_alias_table[] = {
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{"BRANCH-INSTRUCTION-RETIRED", "BR_INST_RETIRED.ALL_BRANCHES"},
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{"BRANCH_MISSES_RETIRED", "BR_MISP_RETIRED.ALL_BRANCHES"},
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{"BRANCH-MISSES-RETIRED", "BR_MISP_RETIRED.ALL_BRANCHES"},
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{"unhalted-cycles", "CPU_CLK_UNHALTED.THREAD_P_ANY"},
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{"instructions", "inst_retired.any_p"},
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{"unhalted-cycles", "cpu_clk_unhalted.thread"},
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{"instructions", "inst_retired.any"},
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{"branch-mispredicts", "br_misp_retired.all_branches"},
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{"branches", "br_inst_retired.all_branches"},
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{"interrupts", "hw_interrupts.received"},
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