Messages in this thread Patch in this message | | | Date | Wed, 13 Mar 2024 22:59:06 -0700 | Subject | [PATCH v3 07/20] perf jevents: Add software prefetch (swpf) metric group for Intel | From | Ian Rogers <> |
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Add metrics that breakdown software prefetch instruction use.
Signed-off-by: Ian Rogers <irogers@google.com> --- tools/perf/pmu-events/intel_metrics.py | 65 ++++++++++++++++++++++++++ 1 file changed, 65 insertions(+)
diff --git a/tools/perf/pmu-events/intel_metrics.py b/tools/perf/pmu-events/intel_metrics.py index 09f7b7159e7c..b02d0c0c3793 100755 --- a/tools/perf/pmu-events/intel_metrics.py +++ b/tools/perf/pmu-events/intel_metrics.py @@ -260,6 +260,70 @@ def IntelBr(): description="breakdown of retired branch instructions") +def IntelSwpf() -> Optional[MetricGroup]: + ins = Event("instructions") + try: + s_ld = Event("MEM_INST_RETIRED.ALL_LOADS", "MEM_UOPS_RETIRED.ALL_LOADS") + s_nta = Event("SW_PREFETCH_ACCESS.NTA") + s_t0 = Event("SW_PREFETCH_ACCESS.T0") + s_t1 = Event("SW_PREFETCH_ACCESS.T1_T2") + s_w = Event("SW_PREFETCH_ACCESS.PREFETCHW") + except: + return None + + all_sw = s_nta + s_t0 + s_t1 + s_w + swp_r = d_ratio(all_sw, interval_sec) + ins_r = d_ratio(ins, all_sw) + ld_r = d_ratio(s_ld, all_sw) + + return MetricGroup("swpf", [ + MetricGroup("swpf_totals", [ + Metric("swpf_totals_exec", "Software prefetch instructions per second", + swp_r, "swpf/s"), + Metric("swpf_totals_insn_per_pf", + "Average number of instructions between software prefetches", + ins_r, "insn/swpf"), + Metric("swpf_totals_loads_per_pf", + "Average number of loads between software prefetches", + ld_r, "loads/swpf"), + ]), + MetricGroup("swpf_bkdwn", [ + MetricGroup("swpf_bkdwn_nta", [ + Metric("swpf_bkdwn_nta_per_swpf", + "Software prefetch NTA instructions as a percent of all prefetch instructions", + d_ratio(s_nta, all_sw), "100%"), + Metric("swpf_bkdwn_nta_rate", + "Software prefetch NTA instructions per second", + d_ratio(s_nta, interval_sec), "insn/s"), + ]), + MetricGroup("swpf_bkdwn_t0", [ + Metric("swpf_bkdwn_t0_per_swpf", + "Software prefetch T0 instructions as a percent of all prefetch instructions", + d_ratio(s_t0, all_sw), "100%"), + Metric("swpf_bkdwn_t0_rate", + "Software prefetch T0 instructions per second", + d_ratio(s_t0, interval_sec), "insn/s"), + ]), + MetricGroup("swpf_bkdwn_t1_t2", [ + Metric("swpf_bkdwn_t1_t2_per_swpf", + "Software prefetch T1 or T2 instructions as a percent of all prefetch instructions", + d_ratio(s_t1, all_sw), "100%"), + Metric("swpf_bkdwn_t1_t2_rate", + "Software prefetch T1 or T2 instructions per second", + d_ratio(s_t1, interval_sec), "insn/s"), + ]), + MetricGroup("swpf_bkdwn_w", [ + Metric("swpf_bkdwn_w_per_swpf", + "Software prefetch W instructions as a percent of all prefetch instructions", + d_ratio(s_w, all_sw), "100%"), + Metric("swpf_bkdwn_w_rate", + "Software prefetch W instructions per second", + d_ratio(s_w, interval_sec), "insn/s"), + ]), + ]), + ], description="Sofware prefetch instruction breakdown") + + def main() -> None: global _args @@ -288,6 +352,7 @@ def main() -> None: Smi(), Tsx(), IntelBr(), + IntelSwpf(), ]) -- 2.44.0.278.ge034bb2e1d-goog
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