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perf tools: Make 'trace' or 'trace_fields' sort key default for tracepoint events

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When an evlist contains tracepoint events only, use 'trace' sort key as
default.  If --raw-trace option was given, use 'trace_fields' instead.
This will make users more convenient to see trace result.

Suggested-and-Acked-by: Jiri Olsa <jolsa@kernel.org>
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: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1450804030-29193-14-git-send-email-namhyung@kernel.org
[ Check evlist in get_default_sort_order() fixing a segfault in 'perf test hists' reported by Jiri Olsa ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2015-12-23 02:07:10 +09:00 committed by Arnaldo Carvalho de Melo
parent 2e422fd1e4
commit d49dadea78
2 changed files with 26 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
tools/perf/util/sort.c
View File

@ -15,6 +15,7 @@ const char default_branch_sort_order[] = "comm,dso_from,symbol_from,symbol_to,cy
const char default_mem_sort_order[] = "local_weight,mem,sym,dso,symbol_daddr,dso_daddr,snoop,tlb,locked";
const char default_top_sort_order[] = "dso,symbol";
const char default_diff_sort_order[] = "dso,symbol";
const char default_tracepoint_sort_order[] = "trace";
const char *sort_order;
const char *field_order;
regex_t ignore_callees_regex;
@ -2171,7 +2172,7 @@ static int sort_dimension__add(const char *tok,
return -ESRCH;
}
static const char *get_default_sort_order(void)
static const char *get_default_sort_order(struct perf_evlist *evlist)
{
const char *default_sort_orders[] = {
default_sort_order,
@ -2179,14 +2180,33 @@ static const char *get_default_sort_order(void)
default_mem_sort_order,
default_top_sort_order,
default_diff_sort_order,
default_tracepoint_sort_order,
};
bool use_trace = true;
struct perf_evsel *evsel;
BUG_ON(sort__mode >= ARRAY_SIZE(default_sort_orders));
if (evlist == NULL)
goto out_no_evlist;
evlist__for_each(evlist, evsel) {
if (evsel->attr.type != PERF_TYPE_TRACEPOINT) {
use_trace = false;
break;
}
}
if (use_trace) {
sort__mode = SORT_MODE__TRACEPOINT;
if (symbol_conf.raw_trace)
return "trace_fields";
}
out_no_evlist:
return default_sort_orders[sort__mode];
}
static int setup_sort_order(void)
static int setup_sort_order(struct perf_evlist *evlist)
{
char *new_sort_order;
@ -2207,7 +2227,7 @@ static int setup_sort_order(void)
* because it's checked over the rest of the code.
*/
if (asprintf(&new_sort_order, "%s,%s",
get_default_sort_order(), sort_order + 1) < 0) {
get_default_sort_order(evlist), sort_order + 1) < 0) {
error("Not enough memory to set up --sort");
return -ENOMEM;
}
@ -2222,7 +2242,7 @@ static int __setup_sorting(struct perf_evlist *evlist)
const char *sort_keys;
int ret = 0;
ret = setup_sort_order();
ret = setup_sort_order(evlist);
if (ret)
return ret;
@ -2236,7 +2256,7 @@ static int __setup_sorting(struct perf_evlist *evlist)
return 0;
}
sort_keys = get_default_sort_order();
sort_keys = get_default_sort_order(evlist);
}
str = strdup(sort_keys);

1
tools/perf/util/sort.h
View File

@ -167,6 +167,7 @@ enum sort_mode {
SORT_MODE__MEMORY,
SORT_MODE__TOP,
SORT_MODE__DIFF,
SORT_MODE__TRACEPOINT,
};
enum sort_type {