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perf report: Display user/kernel differentiator

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Before:

    25.96%  copy_user_generic_string
    15.23%  two_op
    15.19%  one_op
     6.92%  enough_duration
     1.23%  alloc_pages_current
     1.14%  acpi_os_read_port
     1.08%  _spin_lock

After:

    25.96%  [k] copy_user_generic_string
    15.23%  [.] two_op
    15.19%  [.] one_op
     6.92%  [.] enough_duration
     1.23%  [k] alloc_pages_current
     1.14%  [k] acpi_os_read_port
     1.08%  [k] _spin_lock

The '[k]' differentiator is a quick clue that it's a kernel symbol,
without having to bring in the full dso column.

Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2009-06-05 14:13:18 +02:00
parent fc54db5105
commit 8edd4286f9
1 changed files with 9 additions and 7 deletions
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16
Documentation/perf_counter/builtin-report.c
View file

@ -504,7 +504,7 @@ sort__comm_print(FILE *fp, struct hist_entry *self)
}
static struct sort_entry sort_comm = {
.header = " Command",
.header = " Command",
.cmp = sort__comm_cmp,
.collapse = sort__comm_collapse,
.print = sort__comm_print,
@ -569,10 +569,12 @@ sort__sym_print(FILE *fp, struct hist_entry *self)
if (verbose)
ret += fprintf(fp, "%#018llx ", (__u64)self->ip);
if (self->sym)
ret += fprintf(fp, "%s", self->sym->name);
else
if (self->sym) {
ret += fprintf(fp, "[%c] %s",
self->dso == kernel_dso ? 'k' : '.', self->sym->name);
} else {
ret += fprintf(fp, "%#016llx", (__u64)self->ip);
}
return ret;
}
@ -586,9 +588,9 @@ static struct sort_entry sort_sym = {
static int sort__need_collapse = 0;
struct sort_dimension {
char *name;
struct sort_entry *entry;
int taken;
char *name;
struct sort_entry *entry;
int taken;
};
static struct sort_dimension sort_dimensions[] = {