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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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439d473b47
Representing modules as struct map entries, backed by a DSO, etc,
using /proc/modules to find where the module is loaded.
DSOs now can have a short and long name, so that in verbose mode we
can show exactly which .ko or vmlinux image was used.
As kernel modules now are a DSO separate from the kernel, we can
ask for just the hits for a particular set of kernel modules, just
like we can do with shared libraries:
[root@doppio linux-2.6-tip]# perf report -n --vmlinux
/home/acme/git/build/tip-recvmmsg/vmlinux --modules --dsos \[drm\] | head -15
84.58% 13266 Xorg [k] drm_clflush_pages
4.02% 630 Xorg [k] trace_kmalloc.clone.0
3.95% 619 Xorg [k] drm_ioctl
2.07% 324 Xorg [k] drm_addbufs
1.68% 263 Xorg [k] drm_gem_close_ioctl
0.77% 120 Xorg [k] drm_setmaster_ioctl
0.70% 110 Xorg [k] drm_lastclose
0.68% 106 Xorg [k] drm_open
0.54% 85 Xorg [k] drm_mm_search_free
[root@doppio linux-2.6-tip]#
Specifying --dsos /lib/modules/2.6.31-tip/kernel/drivers/gpu/drm/drm.ko
would have the same effect. Allowing specifying just 'drm.ko' is left
for another patch.
Processing kallsyms so that per kernel module struct map are
instantiated was also left for another patch. That will allow
removing the module name from each of its symbols.
struct symbol was reduced by removing the ->module backpointer and
moving it (well now the map) to struct symbol_entry in perf top,
that is its only user right now.
The total linecount went down by ~500 lines.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Avi Kivity <avi@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
91 lines
2.5 KiB
C
91 lines
2.5 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 "thread.h"
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#include "sort.h"
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extern regex_t parent_regex;
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extern char *sort_order;
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extern char default_parent_pattern[];
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extern char *parent_pattern;
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extern char default_sort_order[];
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extern int sort__need_collapse;
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extern int sort__has_parent;
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extern char *field_sep;
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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 unsigned int dsos__col_width;
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extern unsigned int comms__col_width;
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extern unsigned int threads__col_width;
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struct hist_entry {
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struct rb_node rb_node;
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u64 count;
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struct thread *thread;
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struct map *map;
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struct symbol *sym;
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u64 ip;
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char level;
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struct symbol *parent;
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struct callchain_node callchain;
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struct rb_root sorted_chain;
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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 *header;
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int64_t (*cmp)(struct hist_entry *, struct hist_entry *);
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int64_t (*collapse)(struct hist_entry *, struct hist_entry *);
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size_t (*print)(FILE *fp, struct hist_entry *, unsigned int width);
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unsigned int *width;
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bool elide;
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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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extern int repsep_fprintf(FILE *fp, const char *fmt, ...);
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extern size_t sort__thread_print(FILE *, struct hist_entry *, unsigned int);
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extern size_t sort__comm_print(FILE *, struct hist_entry *, unsigned int);
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extern size_t sort__dso_print(FILE *, struct hist_entry *, unsigned int);
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extern size_t sort__sym_print(FILE *, struct hist_entry *, unsigned int __used);
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extern int64_t cmp_null(void *, void *);
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extern int64_t sort__thread_cmp(struct hist_entry *, struct hist_entry *);
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extern int64_t sort__comm_cmp(struct hist_entry *, struct hist_entry *);
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extern int64_t sort__comm_collapse(struct hist_entry *, struct hist_entry *);
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extern int64_t sort__dso_cmp(struct hist_entry *, struct hist_entry *);
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extern int64_t sort__sym_cmp(struct hist_entry *, struct hist_entry *);
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extern int64_t sort__parent_cmp(struct hist_entry *, struct hist_entry *);
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extern size_t sort__parent_print(FILE *, struct hist_entry *, unsigned int);
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extern int sort_dimension__add(const char *);
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#endif /* __PERF_SORT_H */
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