[tip:perf/core] perf tools: Add 'I' event modifier for exclude_idle bit

From: tip-bot for Jiri Olsa
Date: Wed Apr 08 2015 - 11:16:21 EST

Next message: Jan Engelhardt: "Re: NULL deref around xfs in v4.0-rc1ârc7"
Previous message: tip-bot for Jiri Olsa: "[tip:perf/core] perf tests: Fix attr tests"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

Commit-ID: a1e12da4796a4ddd0e911687a290eb396d1c64bf
Gitweb: http://git.kernel.org/tip/a1e12da4796a4ddd0e911687a290eb396d1c64bf
Author: Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Tue, 7 Apr 2015 23:25:14 +0200
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 8 Apr 2015 11:00:16 -0300

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

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@xxxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: William Cohen <wcohen@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1428441919-23099-2-git-send-email-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/Documentation/perf-list.txt | 1 +
tools/perf/tests/parse-events.c | 40 ++++++++++++++++++++++++++++++++++
tools/perf/util/parse-events.c | 8 ++++++-
tools/perf/util/parse-events.l | 2 +-
4 files changed, 49 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
index 4692d27..bada893 100644
--- a/tools/perf/Documentation/perf-list.txt
+++ b/tools/perf/Documentation/perf-list.txt
@@ -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
diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index ac243eb..3de7449 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -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[] = {
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index fe07573..be06553 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -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;

diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 94eacb6..8895cf3 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -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}

%%
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

Next message: Jan Engelhardt: "Re: NULL deref around xfs in v4.0-rc1ârc7"
Previous message: tip-bot for Jiri Olsa: "[tip:perf/core] perf tests: Fix attr tests"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]