91 строка
2.9 KiB
C
91 строка
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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#ifndef METRICGROUP_H
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#define METRICGROUP_H 1
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#include <linux/list.h>
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#include <linux/rbtree.h>
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#include <stdbool.h>
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#include "pmu-events/pmu-events.h"
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struct evlist;
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struct evsel;
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struct option;
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struct rblist;
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struct cgroup;
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/**
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* A node in a rblist keyed by the evsel. The global rblist of metric events
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* generally exists in perf_stat_config. The evsel is looked up in the rblist
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* yielding a list of metric_expr.
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*/
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struct metric_event {
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struct rb_node nd;
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struct evsel *evsel;
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struct list_head head; /* list of metric_expr */
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};
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/**
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* A metric referenced by a metric_expr. When parsing a metric expression IDs
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* will be looked up, matching either a value (from metric_events) or a
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* metric_ref. A metric_ref will then be parsed recursively. The metric_refs and
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* metric_events need to be known before parsing so that their values may be
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* placed in the parse context for lookup.
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*/
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struct metric_ref {
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const char *metric_name;
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const char *metric_expr;
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};
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/**
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* One in a list of metric_expr associated with an evsel. The data is used to
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* generate a metric value during stat output.
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*/
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struct metric_expr {
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struct list_head nd;
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/** The expression to parse, for example, "instructions/cycles". */
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const char *metric_expr;
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/** The name of the meric such as "IPC". */
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const char *metric_name;
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/**
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* The "ScaleUnit" that scales and adds a unit to the metric during
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* output. For example, "6.4e-05MiB" means to scale the resulting metric
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* by 6.4e-05 (typically converting a unit like cache lines to something
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* more human intelligible) and then add "MiB" afterward when displayed.
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*/
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const char *metric_unit;
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/** Null terminated array of events used by the metric. */
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struct evsel **metric_events;
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/** Null terminated array of referenced metrics. */
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struct metric_ref *metric_refs;
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/** A value substituted for '?' during parsing. */
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int runtime;
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};
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struct metric_event *metricgroup__lookup(struct rblist *metric_events,
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struct evsel *evsel,
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bool create);
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int metricgroup__parse_groups(struct evlist *perf_evlist,
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const char *str,
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bool metric_no_group,
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bool metric_no_merge,
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const char *user_requested_cpu_list,
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bool system_wide,
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struct rblist *metric_events);
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int metricgroup__parse_groups_test(struct evlist *evlist,
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const struct pmu_events_table *table,
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const char *str,
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bool metric_no_group,
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bool metric_no_merge,
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struct rblist *metric_events);
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void metricgroup__print(bool metrics, bool groups, char *filter,
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bool raw, bool details, const char *pmu_name);
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bool metricgroup__has_metric(const char *metric);
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int arch_get_runtimeparam(const struct pmu_event *pe __maybe_unused);
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void metricgroup__rblist_exit(struct rblist *metric_events);
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int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
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struct rblist *new_metric_events,
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struct rblist *old_metric_events);
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#endif
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