31191a85fb
In some cases it's useful to characterize samples by file. This is useful to get a higher level categorization, for example to map cost to subsystems. Add a srcfile sort key to perf report. It builds on top of the existing srcline support. Commiter notes: E.g.: # perf record -F 10000 usleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.016 MB perf.data (13 samples) ] [root@zoo ~]# perf report -s srcfile --stdio # Total Lost Samples: 0 # # Samples: 13 of event 'cycles' # Event count (approx.): 869878 # # Overhead Source File # ........ ........... 60.99% . 20.62% paravirt.h 14.23% rmap.c 4.04% signal.c 0.11% msr.h # The first line is collecting all the files for which srcfiles couldn't somehow get resolved to: # perf report -s srcfile,dso --stdio # Total Lost Samples: 0 # # Samples: 13 of event 'cycles' # Event count (approx.): 869878 # # Overhead Source File Shared Object # ........ ........... ................ 40.97% . ld-2.20.so 20.62% paravirt.h [kernel.vmlinux] 20.02% . libc-2.20.so 14.23% rmap.c [kernel.vmlinux] 4.04% signal.c [kernel.vmlinux] 0.11% msr.h [kernel.vmlinux] # XXX: Investigate why that is not resolving on Fedora 21, Andi says he hasn't seen this on Fedora 22. Signed-off-by: Andi Kleen <ak@linux.intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1438988064-21834-1-git-send-email-andi@firstfloor.org [ Added column length update, from 0e65bdb3f90f ('perf hists: Update the column width for the "srcline" sort key') ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
233 lines
5.1 KiB
C
233 lines
5.1 KiB
C
#ifndef __PERF_SORT_H
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#define __PERF_SORT_H
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#include "../builtin.h"
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#include "util.h"
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#include "color.h"
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#include <linux/list.h>
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#include "cache.h"
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#include <linux/rbtree.h>
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#include "symbol.h"
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#include "string.h"
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#include "callchain.h"
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#include "strlist.h"
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#include "values.h"
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#include "../perf.h"
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#include "debug.h"
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#include "header.h"
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#include "parse-options.h"
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#include "parse-events.h"
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#include "hist.h"
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#include "thread.h"
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extern regex_t parent_regex;
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extern const char *sort_order;
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extern const char *field_order;
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extern const char default_parent_pattern[];
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extern const char *parent_pattern;
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extern const char default_sort_order[];
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extern regex_t ignore_callees_regex;
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extern int have_ignore_callees;
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extern int sort__need_collapse;
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extern int sort__has_parent;
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extern int sort__has_sym;
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extern enum sort_mode sort__mode;
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extern struct sort_entry sort_comm;
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extern struct sort_entry sort_dso;
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extern struct sort_entry sort_sym;
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extern struct sort_entry sort_parent;
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extern struct sort_entry sort_dso_from;
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extern struct sort_entry sort_dso_to;
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extern struct sort_entry sort_sym_from;
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extern struct sort_entry sort_sym_to;
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extern enum sort_type sort__first_dimension;
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extern const char default_mem_sort_order[];
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struct he_stat {
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u64 period;
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u64 period_sys;
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u64 period_us;
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u64 period_guest_sys;
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u64 period_guest_us;
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u64 weight;
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u32 nr_events;
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};
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struct hist_entry_diff {
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bool computed;
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union {
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/* PERF_HPP__DELTA */
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double period_ratio_delta;
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/* PERF_HPP__RATIO */
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double period_ratio;
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/* HISTC_WEIGHTED_DIFF */
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s64 wdiff;
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};
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};
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/**
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* struct hist_entry - histogram entry
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*
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* @row_offset - offset from the first callchain expanded to appear on screen
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* @nr_rows - rows expanded in callchain, recalculated on folding/unfolding
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*/
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struct hist_entry {
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struct rb_node rb_node_in;
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struct rb_node rb_node;
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union {
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struct list_head node;
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struct list_head head;
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} pairs;
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struct he_stat stat;
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struct he_stat *stat_acc;
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struct map_symbol ms;
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struct thread *thread;
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struct comm *comm;
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u64 ip;
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u64 transaction;
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s32 cpu;
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u8 cpumode;
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/* We are added by hists__add_dummy_entry. */
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bool dummy;
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char level;
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u8 filtered;
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union {
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/*
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* Since perf diff only supports the stdio output, TUI
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* fields are only accessed from perf report (or perf
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* top). So make it an union to reduce memory usage.
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*/
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struct hist_entry_diff diff;
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struct /* for TUI */ {
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u16 row_offset;
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u16 nr_rows;
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bool init_have_children;
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bool unfolded;
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bool has_children;
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};
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};
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char *srcline;
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char *srcfile;
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struct symbol *parent;
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struct rb_root sorted_chain;
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struct branch_info *branch_info;
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struct hists *hists;
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struct mem_info *mem_info;
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struct callchain_root callchain[0]; /* must be last member */
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};
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static inline bool hist_entry__has_pairs(struct hist_entry *he)
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{
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return !list_empty(&he->pairs.node);
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}
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static inline struct hist_entry *hist_entry__next_pair(struct hist_entry *he)
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{
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if (hist_entry__has_pairs(he))
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return list_entry(he->pairs.node.next, struct hist_entry, pairs.node);
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return NULL;
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}
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static inline void hist_entry__add_pair(struct hist_entry *pair,
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struct hist_entry *he)
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{
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list_add_tail(&pair->pairs.node, &he->pairs.head);
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}
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static inline float hist_entry__get_percent_limit(struct hist_entry *he)
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{
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u64 period = he->stat.period;
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u64 total_period = hists__total_period(he->hists);
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if (unlikely(total_period == 0))
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return 0;
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if (symbol_conf.cumulate_callchain)
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period = he->stat_acc->period;
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return period * 100.0 / total_period;
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}
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enum sort_mode {
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SORT_MODE__NORMAL,
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SORT_MODE__BRANCH,
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SORT_MODE__MEMORY,
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SORT_MODE__TOP,
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SORT_MODE__DIFF,
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};
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enum sort_type {
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/* common sort keys */
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SORT_PID,
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SORT_COMM,
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SORT_DSO,
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SORT_SYM,
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SORT_PARENT,
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SORT_CPU,
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SORT_SRCLINE,
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SORT_SRCFILE,
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SORT_LOCAL_WEIGHT,
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SORT_GLOBAL_WEIGHT,
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SORT_TRANSACTION,
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/* branch stack specific sort keys */
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__SORT_BRANCH_STACK,
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SORT_DSO_FROM = __SORT_BRANCH_STACK,
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SORT_DSO_TO,
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SORT_SYM_FROM,
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SORT_SYM_TO,
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SORT_MISPREDICT,
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SORT_ABORT,
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SORT_IN_TX,
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SORT_CYCLES,
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/* memory mode specific sort keys */
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__SORT_MEMORY_MODE,
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SORT_MEM_DADDR_SYMBOL = __SORT_MEMORY_MODE,
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SORT_MEM_DADDR_DSO,
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SORT_MEM_LOCKED,
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SORT_MEM_TLB,
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SORT_MEM_LVL,
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SORT_MEM_SNOOP,
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SORT_MEM_DCACHELINE,
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};
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/*
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* configurable sorting bits
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*/
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struct sort_entry {
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struct list_head list;
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const char *se_header;
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int64_t (*se_cmp)(struct hist_entry *, struct hist_entry *);
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int64_t (*se_collapse)(struct hist_entry *, struct hist_entry *);
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int64_t (*se_sort)(struct hist_entry *, struct hist_entry *);
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int (*se_snprintf)(struct hist_entry *he, char *bf, size_t size,
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unsigned int width);
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u8 se_width_idx;
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};
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extern struct sort_entry sort_thread;
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extern struct list_head hist_entry__sort_list;
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int setup_sorting(void);
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int setup_output_field(void);
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void reset_output_field(void);
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extern int sort_dimension__add(const char *);
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void sort__setup_elide(FILE *fp);
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void perf_hpp__set_elide(int idx, bool elide);
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int report_parse_ignore_callees_opt(const struct option *opt, const char *arg, int unset);
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bool is_strict_order(const char *order);
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#endif /* __PERF_SORT_H */
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