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perf tools: Delay loading symtabs till we hit a map with it

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So that we can have a quicker start on perf top and even
speedups in the other tools, as we can have maps with no hits,
so no need to load its symtabs.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <1256773881-4191-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Arnaldo Carvalho de Melo
2009-10-28 21:51:21 -02:00
committed by Ingo Molnar
parent 689d301878
commit 66bd8424cc
7 changed files with 41 additions and 33 deletions
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5
tools/perf/builtin-top.c
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@@ -834,7 +834,7 @@ static void event__process_sample(const event_t *self, int counter)
map = thread__find_map(thread, ip);
if (map != NULL) {
ip = map->map_ip(map, ip);
sym = map->dso->find_symbol(map->dso, ip);
sym = map__find_symbol(map, ip, symbol_filter);
if (sym == NULL)
return;
userspace_samples++;
@@ -879,8 +879,7 @@ static void event__process_mmap(event_t *self)
if (thread != NULL) {
struct map *map = map__new(&self->mmap, NULL, 0,
sizeof(struct sym_entry),
symbol_filter);
sizeof(struct sym_entry));
if (map != NULL)
thread__insert_map(thread, map);
}