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perf tools: Add 'I' event modifier for exclude_idle bit

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Adding 'I' event modifier to have complete set of modifiers for
perf_event_attr:exclude_* bits.

Any event specified with 'I' modifier will have the
perf_event_attr:exclude_idle bit set.

  $ perf record -e cycles:I -vv ls 2>&1 | grep exclude_idle
  exclude_hv          0    exclude_idle        1

Adding automated tests.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: William Cohen <wcohen@redhat.com>
Link: http://lkml.kernel.org/r/1428441919-23099-2-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2015-04-07 23:25:14 +02:00 committed by Arnaldo Carvalho de Melo
parent f6fcc1433a
commit a1e12da479
4 changed files with 49 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
tools/perf/Documentation/perf-list.txt
View File

@ -26,6 +26,7 @@ counted. The following modifiers exist:
u - user-space counting
k - kernel counting
h - hypervisor counting
I - non idle counting
G - guest counting (in KVM guests)
H - host counting (not in KVM guests)
p - precise level

40
tools/perf/tests/parse-events.c
View File

@ -295,6 +295,36 @@ static int test__checkevent_genhw_modifier(struct perf_evlist *evlist)
return test__checkevent_genhw(evlist);
}
static int test__checkevent_exclude_idle_modifier(struct perf_evlist *evlist)
{
struct perf_evsel *evsel = perf_evlist__first(evlist);
TEST_ASSERT_VAL("wrong exclude idle", evsel->attr.exclude_idle);
TEST_ASSERT_VAL("wrong exclude guest", !evsel->attr.exclude_guest);
TEST_ASSERT_VAL("wrong exclude host", !evsel->attr.exclude_host);
TEST_ASSERT_VAL("wrong exclude_user", !evsel->attr.exclude_user);
TEST_ASSERT_VAL("wrong exclude_kernel", !evsel->attr.exclude_kernel);
TEST_ASSERT_VAL("wrong exclude_hv", !evsel->attr.exclude_hv);
TEST_ASSERT_VAL("wrong precise_ip", !evsel->attr.precise_ip);
return test__checkevent_symbolic_name(evlist);
}
static int test__checkevent_exclude_idle_modifier_1(struct perf_evlist *evlist)
{
struct perf_evsel *evsel = perf_evlist__first(evlist);
TEST_ASSERT_VAL("wrong exclude idle", evsel->attr.exclude_idle);
TEST_ASSERT_VAL("wrong exclude guest", !evsel->attr.exclude_guest);
TEST_ASSERT_VAL("wrong exclude host", evsel->attr.exclude_host);
TEST_ASSERT_VAL("wrong exclude_user", evsel->attr.exclude_user);
TEST_ASSERT_VAL("wrong exclude_kernel", !evsel->attr.exclude_kernel);
TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv);
TEST_ASSERT_VAL("wrong precise_ip", !evsel->attr.precise_ip);
return test__checkevent_symbolic_name(evlist);
}
static int test__checkevent_breakpoint_modifier(struct perf_evlist *evlist)
{
struct perf_evsel *evsel = perf_evlist__first(evlist);
@ -1494,6 +1524,16 @@ static struct evlist_test test__events[] = {
.id = 100,
},
#endif
{
.name = "instructions:I",
.check = test__checkevent_exclude_idle_modifier,
.id = 45,
},
{
.name = "instructions:kIG",
.check = test__checkevent_exclude_idle_modifier_1,
.id = 46,
},
};
static struct evlist_test test__events_pmu[] = {

8
tools/perf/util/parse-events.c
View File

@ -709,6 +709,7 @@ struct event_modifier {
int eh;
int eH;
int eG;
int eI;
int precise;
int exclude_GH;
int sample_read;
@ -723,6 +724,7 @@ static int get_event_modifier(struct event_modifier *mod, char *str,
int eh = evsel ? evsel->attr.exclude_hv : 0;
int eH = evsel ? evsel->attr.exclude_host : 0;
int eG = evsel ? evsel->attr.exclude_guest : 0;
int eI = evsel ? evsel->attr.exclude_idle : 0;
int precise = evsel ? evsel->attr.precise_ip : 0;
int sample_read = 0;
int pinned = evsel ? evsel->attr.pinned : 0;
@ -753,6 +755,8 @@ static int get_event_modifier(struct event_modifier *mod, char *str,
if (!exclude_GH)
exclude_GH = eG = eH = 1;
eH = 0;
} else if (*str == 'I') {
eI = 1;
} else if (*str == 'p') {
precise++;
/* use of precise requires exclude_guest */
@ -786,6 +790,7 @@ static int get_event_modifier(struct event_modifier *mod, char *str,
mod->eh = eh;
mod->eH = eH;
mod->eG = eG;
mod->eI = eI;
mod->precise = precise;
mod->exclude_GH = exclude_GH;
mod->sample_read = sample_read;
@ -803,7 +808,7 @@ static int check_modifier(char *str)
char *p = str;
/* The sizeof includes 0 byte as well. */
if (strlen(str) > (sizeof("ukhGHpppSD") - 1))
if (strlen(str) > (sizeof("ukhGHpppSDI") - 1))
return -1;
while (*p) {
@ -839,6 +844,7 @@ int parse_events__modifier_event(struct list_head *list, char *str, bool add)
evsel->attr.precise_ip = mod.precise;
evsel->attr.exclude_host = mod.eH;
evsel->attr.exclude_guest = mod.eG;
evsel->attr.exclude_idle = mod.eI;
evsel->exclude_GH = mod.exclude_GH;
evsel->sample_read = mod.sample_read;

2
tools/perf/util/parse-events.l
View File

@ -101,7 +101,7 @@ num_raw_hex [a-fA-F0-9]+
name [a-zA-Z_*?][a-zA-Z0-9_*?]*
name_minus [a-zA-Z_*?][a-zA-Z0-9\-_*?]*
/* If you add a modifier you need to update check_modifier() */
modifier_event [ukhpGHSD]+
modifier_event [ukhpGHSDI]+
modifier_bp [rwx]{1,3}
%%