9e69c21082
Resolving the sample->id to an evsel since the most advanced tools, report and annotate, and the others will too when they evolve to properly support multi-event perf.data files. Good also because it does an extra validation, checking that the ID is valid when present. When that is not the case, the overhead is just a branch + function call (perf_evlist__id2evsel). Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
117 lines
3.6 KiB
C
117 lines
3.6 KiB
C
#ifndef __PERF_HIST_H
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#define __PERF_HIST_H
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#include <linux/types.h>
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#include "callchain.h"
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extern struct callchain_param callchain_param;
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struct hist_entry;
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struct addr_location;
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struct symbol;
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/*
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* The kernel collects the number of events it couldn't send in a stretch and
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* when possible sends this number in a PERF_RECORD_LOST event. The number of
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* such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while
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* total_lost tells exactly how many events the kernel in fact lost, i.e. it is
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* the sum of all struct lost_event.lost fields reported.
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*
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* The total_period is needed because by default auto-freq is used, so
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* multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get
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* the total number of low level events, it is necessary to to sum all struct
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* sample_event.period and stash the result in total_period.
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*/
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struct events_stats {
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u64 total_period;
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u64 total_lost;
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u64 total_invalid_chains;
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u32 nr_events[PERF_RECORD_HEADER_MAX];
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u32 nr_unknown_events;
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u32 nr_invalid_chains;
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u32 nr_unknown_id;
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};
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enum hist_column {
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HISTC_SYMBOL,
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HISTC_DSO,
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HISTC_THREAD,
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HISTC_COMM,
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HISTC_PARENT,
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HISTC_CPU,
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HISTC_NR_COLS, /* Last entry */
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};
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struct hists {
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struct rb_root entries;
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u64 nr_entries;
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struct events_stats stats;
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u64 event_stream;
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u16 col_len[HISTC_NR_COLS];
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/* Best would be to reuse the session callchain cursor */
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struct callchain_cursor callchain_cursor;
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};
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struct hist_entry *__hists__add_entry(struct hists *self,
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struct addr_location *al,
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struct symbol *parent, u64 period);
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extern int64_t hist_entry__cmp(struct hist_entry *, struct hist_entry *);
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extern int64_t hist_entry__collapse(struct hist_entry *, struct hist_entry *);
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int hist_entry__fprintf(struct hist_entry *self, struct hists *hists,
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struct hists *pair_hists, bool show_displacement,
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long displacement, FILE *fp, u64 total);
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int hist_entry__snprintf(struct hist_entry *self, char *bf, size_t size,
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struct hists *hists, struct hists *pair_hists,
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bool show_displacement, long displacement,
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bool color, u64 total);
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void hist_entry__free(struct hist_entry *);
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void hists__output_resort(struct hists *self);
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void hists__collapse_resort(struct hists *self);
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void hists__inc_nr_events(struct hists *self, u32 type);
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size_t hists__fprintf_nr_events(struct hists *self, FILE *fp);
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size_t hists__fprintf(struct hists *self, struct hists *pair,
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bool show_displacement, FILE *fp);
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int hist_entry__inc_addr_samples(struct hist_entry *self, int evidx, u64 addr);
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int hist_entry__annotate(struct hist_entry *self, size_t privsize);
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void hists__filter_by_dso(struct hists *self, const struct dso *dso);
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void hists__filter_by_thread(struct hists *self, const struct thread *thread);
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u16 hists__col_len(struct hists *self, enum hist_column col);
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void hists__set_col_len(struct hists *self, enum hist_column col, u16 len);
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bool hists__new_col_len(struct hists *self, enum hist_column col, u16 len);
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struct perf_evlist;
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#ifdef NO_NEWT_SUPPORT
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static inline
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int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __used,
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const char *help __used)
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{
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return 0;
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}
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static inline int hist_entry__tui_annotate(struct hist_entry *self __used,
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int evidx __used)
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{
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return 0;
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}
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#define KEY_LEFT -1
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#define KEY_RIGHT -2
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#else
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#include <newt.h>
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int hist_entry__tui_annotate(struct hist_entry *self, int evidx);
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#define KEY_LEFT NEWT_KEY_LEFT
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#define KEY_RIGHT NEWT_KEY_RIGHT
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int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help);
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#endif
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unsigned int hists__sort_list_width(struct hists *self);
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#endif /* __PERF_HIST_H */
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