[PATCH 6/6] perf tests: Add test to check for event times

[Jiri Olsa]

This test creates software event 'cpu-clock'
attaches it in several ways and checks that
enabled and running times match.

Link: http://lkml.kernel.org/n/tip-y1g9g3qru2m03s8hzc2ku...@git.kernel.org
Signed-off-by: Jiri Olsa 
---
 tools/perf/tests/Build  |   1 +
 tools/perf/tests/builtin-test.c |   4 +
 tools/perf/tests/event-times.c  | 236 
 tools/perf/tests/tests.h|   1 +
 4 files changed, 242 insertions(+)
 create mode 100644 tools/perf/tests/event-times.c

diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build
index 1ba628ed049a..449fe97a555f 100644
--- a/tools/perf/tests/Build
+++ b/tools/perf/tests/Build
@@ -37,6 +37,7 @@ perf-y += topology.o
 perf-y += cpumap.o
 perf-y += stat.o
 perf-y += event_update.o
+perf-y += event-times.o
 
 $(OUTPUT)tests/llvm-src-base.c: tests/bpf-script-example.c tests/Build
$(call rule_mkdir)
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index f2b1dcac45d3..93c467015e71 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -204,6 +204,10 @@ static struct test generic_tests[] = {
.func = test__event_update,
},
{
+   .desc = "Test events times",
+   .func = test__event_times,
+   },
+   {
.func = NULL,
},
 };
diff --git a/tools/perf/tests/event-times.c b/tools/perf/tests/event-times.c
new file mode 100644
index ..95fb744f6628
--- /dev/null
+++ b/tools/perf/tests/event-times.c
@@ -0,0 +1,236 @@
+#include 
+#include 
+#include "tests.h"
+#include "evlist.h"
+#include "evsel.h"
+#include "util.h"
+#include "debug.h"
+#include "thread_map.h"
+#include "target.h"
+
+static int attach__enable_on_exec(struct perf_evlist *evlist)
+{
+   struct perf_evsel *evsel = perf_evlist__last(evlist);
+   struct target target = {
+   .uid = UINT_MAX,
+   };
+   const char *argv[] = { "true", NULL, };
+   char sbuf[STRERR_BUFSIZE];
+   int err;
+
+   pr_debug("attaching to spawned child, enable on exec\n");
+
+   err = perf_evlist__create_maps(evlist, );
+   if (err < 0) {
+   pr_debug("Not enough memory to create thread/cpu maps\n");
+   return err;
+   }
+
+   err = perf_evlist__prepare_workload(evlist, , argv, false, NULL);
+   if (err < 0) {
+   pr_debug("Couldn't run the workload!\n");
+   return err;
+   }
+
+   evsel->attr.enable_on_exec = 1;
+
+   err = perf_evlist__open(evlist);
+   if (err < 0) {
+   pr_debug("perf_evlist__open: %s\n",
+strerror_r(errno, sbuf, sizeof(sbuf)));
+   return err;
+   }
+
+   return perf_evlist__start_workload(evlist) == 1 ? TEST_OK : TEST_FAIL;
+}
+
+static int detach__enable_on_exec(struct perf_evlist *evlist)
+{
+   waitpid(evlist->workload.pid, NULL, 0);
+   return 0;
+}
+
+static int attach__current_disabled(struct perf_evlist *evlist)
+{
+   struct perf_evsel *evsel = perf_evlist__last(evlist);
+   struct thread_map *threads;
+   int err;
+
+   pr_debug("attaching to current thread as disabled\n");
+
+   threads = thread_map__new(-1, getpid(), UINT_MAX);
+   if (threads == NULL) {
+   pr_debug("thread_map__new\n");
+   return -1;
+   }
+
+   evsel->attr.disabled = 1;
+
+   err = perf_evsel__open_per_thread(evsel, threads);
+   if (err) {
+   pr_debug("Failed to open event cpu-clock:u\n");
+   return err;
+   }
+
+   thread_map__put(threads);
+   return perf_evsel__enable(evsel) == 0 ? TEST_OK : TEST_FAIL;
+}
+
+static int attach__current_enabled(struct perf_evlist *evlist)
+{
+   struct perf_evsel *evsel = perf_evlist__last(evlist);
+   struct thread_map *threads;
+   int err;
+
+   pr_debug("attaching to current thread as enabled\n");
+
+   threads = thread_map__new(-1, getpid(), UINT_MAX);
+   if (threads == NULL) {
+   pr_debug("failed to call thread_map__new\n");
+   return -1;
+   }
+
+   err = perf_evsel__open_per_thread(evsel, threads);
+
+   thread_map__put(threads);
+   return err == 0 ? TEST_OK : TEST_FAIL;
+}
+
+static int detach__disable(struct perf_evlist *evlist)
+{
+   struct perf_evsel *evsel = perf_evlist__last(evlist);
+
+   return perf_evsel__enable(evsel);
+}
+
+static int attach__cpu_disabled(struct perf_evlist *evlist)
+{
+   struct perf_evsel *evsel = perf_evlist__last(evlist);
+   struct cpu_map *cpus;
+   int err;
+
+   pr_debug("attaching to CPU 0 as enabled\n");
+
+   cpus = cpu_map__new("0");
+   if (cpus == NULL) {
+   pr_debug("failed to call cpu_map__new\n");
+   return -1;
+   }
+
+   evsel->attr.disabled = 1;
+
+   err = perf_evsel__open_per_cpu(evsel, cpus);

[PATCH 6/6] perf tests: Add test to check for event times

[Jiri Olsa]

This test creates software event 'cpu-clock'
attaches it in several ways and checks that
enabled and running times match.

Link: http://lkml.kernel.org/n/tip-y1g9g3qru2m03s8hzc2ku...@git.kernel.org
Signed-off-by: Jiri Olsa 
---
 tools/perf/tests/Build  |   1 +
 tools/perf/tests/builtin-test.c |   4 +
 tools/perf/tests/event-times.c  | 236 
 tools/perf/tests/tests.h|   1 +
 4 files changed, 242 insertions(+)
 create mode 100644 tools/perf/tests/event-times.c

diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build
index 1ba628ed049a..449fe97a555f 100644
--- a/tools/perf/tests/Build
+++ b/tools/perf/tests/Build
@@ -37,6 +37,7 @@ perf-y += topology.o
 perf-y += cpumap.o
 perf-y += stat.o
 perf-y += event_update.o
+perf-y += event-times.o
 
 $(OUTPUT)tests/llvm-src-base.c: tests/bpf-script-example.c tests/Build
$(call rule_mkdir)
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index f2b1dcac45d3..93c467015e71 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -204,6 +204,10 @@ static struct test generic_tests[] = {
.func = test__event_update,
},
{
+   .desc = "Test events times",
+   .func = test__event_times,
+   },
+   {
.func = NULL,
},
 };
diff --git a/tools/perf/tests/event-times.c b/tools/perf/tests/event-times.c
new file mode 100644
index ..95fb744f6628
--- /dev/null
+++ b/tools/perf/tests/event-times.c
@@ -0,0 +1,236 @@
+#include 
+#include 
+#include "tests.h"
+#include "evlist.h"
+#include "evsel.h"
+#include "util.h"
+#include "debug.h"
+#include "thread_map.h"
+#include "target.h"
+
+static int attach__enable_on_exec(struct perf_evlist *evlist)
+{
+   struct perf_evsel *evsel = perf_evlist__last(evlist);
+   struct target target = {
+   .uid = UINT_MAX,
+   };
+   const char *argv[] = { "true", NULL, };
+   char sbuf[STRERR_BUFSIZE];
+   int err;
+
+   pr_debug("attaching to spawned child, enable on exec\n");
+
+   err = perf_evlist__create_maps(evlist, );
+   if (err < 0) {
+   pr_debug("Not enough memory to create thread/cpu maps\n");
+   return err;
+   }
+
+   err = perf_evlist__prepare_workload(evlist, , argv, false, NULL);
+   if (err < 0) {
+   pr_debug("Couldn't run the workload!\n");
+   return err;
+   }
+
+   evsel->attr.enable_on_exec = 1;
+
+   err = perf_evlist__open(evlist);
+   if (err < 0) {
+   pr_debug("perf_evlist__open: %s\n",
+strerror_r(errno, sbuf, sizeof(sbuf)));
+   return err;
+   }
+
+   return perf_evlist__start_workload(evlist) == 1 ? TEST_OK : TEST_FAIL;
+}
+
+static int detach__enable_on_exec(struct perf_evlist *evlist)
+{
+   waitpid(evlist->workload.pid, NULL, 0);
+   return 0;
+}
+
+static int attach__current_disabled(struct perf_evlist *evlist)
+{
+   struct perf_evsel *evsel = perf_evlist__last(evlist);
+   struct thread_map *threads;
+   int err;
+
+   pr_debug("attaching to current thread as disabled\n");
+
+   threads = thread_map__new(-1, getpid(), UINT_MAX);
+   if (threads == NULL) {
+   pr_debug("thread_map__new\n");
+   return -1;
+   }
+
+   evsel->attr.disabled = 1;
+
+   err = perf_evsel__open_per_thread(evsel, threads);
+   if (err) {
+   pr_debug("Failed to open event cpu-clock:u\n");
+   return err;
+   }
+
+   thread_map__put(threads);
+   return perf_evsel__enable(evsel) == 0 ? TEST_OK : TEST_FAIL;
+}
+
+static int attach__current_enabled(struct perf_evlist *evlist)
+{
+   struct perf_evsel *evsel = perf_evlist__last(evlist);
+   struct thread_map *threads;
+   int err;
+
+   pr_debug("attaching to current thread as enabled\n");
+
+   threads = thread_map__new(-1, getpid(), UINT_MAX);
+   if (threads == NULL) {
+   pr_debug("failed to call thread_map__new\n");
+   return -1;
+   }
+
+   err = perf_evsel__open_per_thread(evsel, threads);
+
+   thread_map__put(threads);
+   return err == 0 ? TEST_OK : TEST_FAIL;
+}
+
+static int detach__disable(struct perf_evlist *evlist)
+{
+   struct perf_evsel *evsel = perf_evlist__last(evlist);
+
+   return perf_evsel__enable(evsel);
+}
+
+static int attach__cpu_disabled(struct perf_evlist *evlist)
+{
+   struct perf_evsel *evsel = perf_evlist__last(evlist);
+   struct cpu_map *cpus;
+   int err;
+
+   pr_debug("attaching to CPU 0 as enabled\n");
+
+   cpus = cpu_map__new("0");
+   if (cpus == NULL) {
+   pr_debug("failed to call cpu_map__new\n");
+   return -1;
+   }
+
+   evsel->attr.disabled = 1;
+
+   err = perf_evsel__open_per_cpu(evsel, cpus);
+   if (err) {