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perf report/top: Add --raw-trace option

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The --raw-trace option allows disabling pretty printing by the event's
print_fmt or plugin.  Besides that, each dynamic sort key now can
receive a 'raw' suffix separated by '/' to ask for the raw trace of a
specific field.

  $ perf report -s comm,kmem:kmalloc.gfp_flags
  ...
  # Overhead  Command            gfp_flags
  # ........  .......  ...................
  #
      99.89%  perf       GFP_NOFS|GFP_ZERO
       0.06%  sleep             GFP_KERNEL
       0.03%  perf     GFP_KERNEL|GFP_ZERO
       0.01%  perf              GFP_KERNEL

Now

  $ perf report -s comm,kmem:kmalloc.gfp_flags --raw-trace
or
  $ perf report -s comm,kmem:kmalloc.gfp_flags/raw
  ...
  # Overhead  Command   gfp_flags
  # ........  .......  ..........
  #
      99.89%  perf          32848
       0.06%  sleep           208
       0.03%  perf          32976
       0.01%  perf            208

Suggested-and-Acked-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1450804030-29193-9-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2015-12-23 02:07:05 +09:00 • committed by Arnaldo Carvalho de Melo
parent a34bb6a08d
commit 053a3989e1
6 changed files with 41 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

32
tools/perf/util/sort.c
View file

@ -459,7 +459,12 @@ static char *get_trace_output(struct hist_entry *he)
evsel = hists_to_evsel(he->hists);
trace_seq_init(&seq);
pevent_event_info(&seq, evsel->tp_format, &rec);
if (symbol_conf.raw_trace) {
pevent_print_fields(&seq, he->raw_data, he->raw_size,
evsel->tp_format);
} else {
pevent_event_info(&seq, evsel->tp_format, &rec);
}
return seq.buffer;
}
@ -1596,6 +1601,7 @@ struct hpp_dynamic_entry {
struct perf_evsel *evsel;
struct format_field *field;
unsigned dynamic_len;
bool raw_trace;
};
static int hde_width(struct hpp_dynamic_entry *hde)
@ -1628,6 +1634,9 @@ static void update_dynamic_len(struct hpp_dynamic_entry *hde,
size_t namelen;
bool last = false;
if (hde->raw_trace)
return;
/* parse pretty print result and update max length */
if (!he->trace_output)
he->trace_output = get_trace_output(he);
@ -1708,8 +1717,10 @@ static int __sort__hde_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
if (hists_to_evsel(he->hists) != hde->evsel)
return scnprintf(hpp->buf, hpp->size, "%*.*s", len, len, "N/A");
field = hde->field;
if (hde->raw_trace)
goto raw_field;
field = hde->field;
namelen = strlen(field->name);
str = he->trace_output;
@ -1738,6 +1749,7 @@ static int __sort__hde_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
if (str == NULL) {
struct trace_seq seq;
raw_field:
trace_seq_init(&seq);
pevent_print_field(&seq, he->raw_data, hde->field);
str = seq.buffer;
@ -1818,10 +1830,11 @@ __alloc_dynamic_entry(struct perf_evsel *evsel, struct format_field *field)
static int add_dynamic_entry(struct perf_evlist *evlist, const char *tok)
{
char *str, *event_name, *field_name;
char *str, *event_name, *field_name, *raw_opt;
struct perf_evsel *evsel, *pos;
struct format_field *field;
struct hpp_dynamic_entry *hde;
bool raw_trace = symbol_conf.raw_trace;
int ret = 0;
if (evlist == NULL)
@ -1839,6 +1852,18 @@ static int add_dynamic_entry(struct perf_evlist *evlist, const char *tok)
}
*field_name++ = '\0';
raw_opt = strchr(field_name, '/');
if (raw_opt) {
*raw_opt++ = '\0';
if (strcmp(raw_opt, "raw")) {
pr_err("Unsupported field option %s\n", raw_opt);
ret = -EINVAL;
goto out;
}
raw_trace = true;
}
evsel = NULL;
evlist__for_each(evlist, pos) {
if (!strcmp(pos->name, event_name)) {
@ -1872,6 +1897,7 @@ static int add_dynamic_entry(struct perf_evlist *evlist, const char *tok)
ret = -ENOMEM;
goto out;
}
hde->raw_trace = raw_trace;
perf_hpp__register_sort_field(&hde->hpp);