linux/tools/perf/util/sort.h
Arnaldo Carvalho de Melo c351c28161 perf diff: Use perf_session__fprintf_hists just like 'perf record'
That means that almost everything you can do with 'perf report'
can be done with 'perf diff', for instance:

$ perf record -f find / > /dev/null
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.062 MB perf.data (~2699
samples) ] $ perf record -f find / > /dev/null
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.062 MB perf.data (~2687
samples) ] perf diff | head -8
     9.02%     +1.00%     find  libc-2.10.1.so               [.] _IO_vfprintf_internal
     2.91%     -1.00%     find  [kernel]                     [k] __kmalloc
     2.85%     -1.00%     find  [kernel]                     [k] ext4_htree_store_dirent
     1.99%     -1.00%     find  [kernel]                     [k] _atomic_dec_and_lock
     2.44%                find  [kernel]                     [k] half_md4_transform
$

So if you want to zoom into libc:

$ perf diff --dsos libc-2.10.1.so | head -8
    37.34%                find  [.] _IO_vfprintf_internal
    10.34%                find  [.] __GI_memmove
     8.25%     +2.00%     find  [.] _int_malloc
     5.07%     -1.00%     find  [.] __GI_mempcpy
     7.62%     +2.00%     find  [.] _int_free
$

And if there were multiple commands using libc, it is also
possible to aggregate them all by using --sort symbol:

$ perf diff --dsos libc-2.10.1.so --sort symbol | head -8
    37.34%             [.] _IO_vfprintf_internal
    10.34%             [.] __GI_memmove
     8.25%     +2.00%  [.] _int_malloc
     5.07%     -1.00%  [.] __GI_mempcpy
     7.62%     +2.00%  [.] _int_free
$

The displacement column now is off by default, to use it:

perf diff -m --dsos libc-2.10.1.so --sort symbol | head -8
    37.34%                   [.] _IO_vfprintf_internal
    10.34%                   [.] __GI_memmove
     8.25%     +2.00%        [.] _int_malloc
     5.07%     -1.00%    +2  [.] __GI_mempcpy
     7.62%     +2.00%    -1  [.] _int_free
$

Using -t/--field-separator can be used for scripting:

$ perf diff -t, -m --dsos libc-2.10.1.so --sort symbol | head -8
37.34, , ,[.] _IO_vfprintf_internal
10.34, , ,[.] __GI_memmove
8.25,+2.00%, ,[.] _int_malloc
5.07,-1.00%,  +2,[.] __GI_mempcpy
7.62,+2.00%,  -1,[.] _int_free
6.99,+1.00%,  -1,[.] _IO_new_file_xsputn
1.89,-2.00%,  +4,[.] __readdir64
$

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1260978567-550-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-16 16:53:37 +01:00

108 lines
2.9 KiB
C

#ifndef __PERF_SORT_H
#define __PERF_SORT_H
#include "../builtin.h"
#include "util.h"
#include "color.h"
#include <linux/list.h>
#include "cache.h"
#include <linux/rbtree.h>
#include "symbol.h"
#include "string.h"
#include "callchain.h"
#include "strlist.h"
#include "values.h"
#include "../perf.h"
#include "debug.h"
#include "header.h"
#include "parse-options.h"
#include "parse-events.h"
#include "thread.h"
#include "sort.h"
extern regex_t parent_regex;
extern char *sort_order;
extern char default_parent_pattern[];
extern char *parent_pattern;
extern char default_sort_order[];
extern int sort__need_collapse;
extern int sort__has_parent;
extern char *field_sep;
extern struct sort_entry sort_comm;
extern struct sort_entry sort_dso;
extern struct sort_entry sort_sym;
extern struct sort_entry sort_parent;
extern unsigned int dsos__col_width;
extern unsigned int comms__col_width;
extern unsigned int threads__col_width;
extern enum sort_type sort__first_dimension;
struct hist_entry {
struct rb_node rb_node;
u64 count;
struct thread *thread;
struct map *map;
struct symbol *sym;
u64 ip;
char level;
struct symbol *parent;
struct callchain_node callchain;
union {
unsigned long position;
struct hist_entry *pair;
struct rb_root sorted_chain;
};
};
enum sort_type {
SORT_PID,
SORT_COMM,
SORT_DSO,
SORT_SYM,
SORT_PARENT
};
/*
* configurable sorting bits
*/
struct sort_entry {
struct list_head list;
const char *header;
int64_t (*cmp)(struct hist_entry *, struct hist_entry *);
int64_t (*collapse)(struct hist_entry *, struct hist_entry *);
size_t (*print)(FILE *fp, struct hist_entry *, unsigned int width);
unsigned int *width;
bool elide;
};
extern struct sort_entry sort_thread;
extern struct list_head hist_entry__sort_list;
void setup_sorting(const char * const usagestr[], const struct option *opts);
extern int repsep_fprintf(FILE *fp, const char *fmt, ...);
extern size_t sort__thread_print(FILE *, struct hist_entry *, unsigned int);
extern size_t sort__comm_print(FILE *, struct hist_entry *, unsigned int);
extern size_t sort__dso_print(FILE *, struct hist_entry *, unsigned int);
extern size_t sort__sym_print(FILE *, struct hist_entry *, unsigned int __used);
extern int64_t cmp_null(void *, void *);
extern int64_t sort__thread_cmp(struct hist_entry *, struct hist_entry *);
extern int64_t sort__comm_cmp(struct hist_entry *, struct hist_entry *);
extern int64_t sort__comm_collapse(struct hist_entry *, struct hist_entry *);
extern int64_t sort__dso_cmp(struct hist_entry *, struct hist_entry *);
extern int64_t sort__sym_cmp(struct hist_entry *, struct hist_entry *);
extern int64_t sort__parent_cmp(struct hist_entry *, struct hist_entry *);
extern size_t sort__parent_print(FILE *, struct hist_entry *, unsigned int);
extern int sort_dimension__add(const char *);
void sort_entry__setup_elide(struct sort_entry *self, struct strlist *list,
const char *list_name, FILE *fp);
#endif /* __PERF_SORT_H */