perf tests: Move test__open_syscall_event_on_all_cpus into separate object

Separating test__open_syscall_event_on_all_cpus test from the
builtin-test into open-syscall-all-cpus object.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1352508412-16914-4-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 69f582c..d413e89 100644 (file)
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -433,6 +433,7 @@ LIB_OBJS += $(OUTPUT)tests/dso-data.o
 LIB_OBJS += $(OUTPUT)tests/attr.o
 LIB_OBJS += $(OUTPUT)tests/vmlinux-kallsyms.o
 LIB_OBJS += $(OUTPUT)tests/open-syscall.o
+LIB_OBJS += $(OUTPUT)tests/open-syscall-all-cpus.o
 LIB_OBJS += $(OUTPUT)tests/util.o
 
 BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index b6b1e46..98e883b 100644 (file)
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -29,120 +29,6 @@
 
 #include <sched.h>
 
-static int test__open_syscall_event_on_all_cpus(void)
-{
-       int err = -1, fd, cpu;
-       struct thread_map *threads;
-       struct cpu_map *cpus;
-       struct perf_evsel *evsel;
-       struct perf_event_attr attr;
-       unsigned int nr_open_calls = 111, i;
-       cpu_set_t cpu_set;
-       int id = trace_event__id("sys_enter_open");
-
-       if (id < 0) {
-               pr_debug("is debugfs mounted on /sys/kernel/debug?\n");
-               return -1;
-       }
-
-       threads = thread_map__new(-1, getpid(), UINT_MAX);
-       if (threads == NULL) {
-               pr_debug("thread_map__new\n");
-               return -1;
-       }
-
-       cpus = cpu_map__new(NULL);
-       if (cpus == NULL) {
-               pr_debug("cpu_map__new\n");
-               goto out_thread_map_delete;
-       }
-
-
-       CPU_ZERO(&cpu_set);
-
-       memset(&attr, 0, sizeof(attr));
-       attr.type = PERF_TYPE_TRACEPOINT;
-       attr.config = id;
-       evsel = perf_evsel__new(&attr, 0);
-       if (evsel == NULL) {
-               pr_debug("perf_evsel__new\n");
-               goto out_thread_map_delete;
-       }
-
-       if (perf_evsel__open(evsel, cpus, threads) < 0) {
-               pr_debug("failed to open counter: %s, "
-                        "tweak /proc/sys/kernel/perf_event_paranoid?\n",
-                        strerror(errno));
-               goto out_evsel_delete;
-       }
-
-       for (cpu = 0; cpu < cpus->nr; ++cpu) {
-               unsigned int ncalls = nr_open_calls + cpu;
-               /*
-                * XXX eventually lift this restriction in a way that
-                * keeps perf building on older glibc installations
-                * without CPU_ALLOC. 1024 cpus in 2010 still seems
-                * a reasonable upper limit tho :-)
-                */
-               if (cpus->map[cpu] >= CPU_SETSIZE) {
-                       pr_debug("Ignoring CPU %d\n", cpus->map[cpu]);
-                       continue;
-               }
-
-               CPU_SET(cpus->map[cpu], &cpu_set);
-               if (sched_setaffinity(0, sizeof(cpu_set), &cpu_set) < 0) {
-                       pr_debug("sched_setaffinity() failed on CPU %d: %s ",
-                                cpus->map[cpu],
-                                strerror(errno));
-                       goto out_close_fd;
-               }
-               for (i = 0; i < ncalls; ++i) {
-                       fd = open("/etc/passwd", O_RDONLY);
-                       close(fd);
-               }
-               CPU_CLR(cpus->map[cpu], &cpu_set);
-       }
-
-       /*
-        * Here we need to explicitely preallocate the counts, as if
-        * we use the auto allocation it will allocate just for 1 cpu,
-        * as we start by cpu 0.
-        */
-       if (perf_evsel__alloc_counts(evsel, cpus->nr) < 0) {
-               pr_debug("perf_evsel__alloc_counts(ncpus=%d)\n", cpus->nr);
-               goto out_close_fd;
-       }
-
-       err = 0;
-
-       for (cpu = 0; cpu < cpus->nr; ++cpu) {
-               unsigned int expected;
-
-               if (cpus->map[cpu] >= CPU_SETSIZE)
-                       continue;
-
-               if (perf_evsel__read_on_cpu(evsel, cpu, 0) < 0) {
-                       pr_debug("perf_evsel__read_on_cpu\n");
-                       err = -1;
-                       break;
-               }
-
-               expected = nr_open_calls + cpu;
-               if (evsel->counts->cpu[cpu].val != expected) {
-                       pr_debug("perf_evsel__read_on_cpu: expected to intercept %d calls on cpu %d, got %" PRIu64 "\n",
-                                expected, cpus->map[cpu], evsel->counts->cpu[cpu].val);
-                       err = -1;
-               }
-       }
-
-out_close_fd:
-       perf_evsel__close_fd(evsel, 1, threads->nr);
-out_evsel_delete:
-       perf_evsel__delete(evsel);
-out_thread_map_delete:
-       thread_map__delete(threads);
-       return err;
-}
 
 /*
  * This test will generate random numbers of calls to some getpid syscalls,

diff --git a/tools/perf/tests/open-syscall-all-cpus.c b/tools/perf/tests/open-syscall-all-cpus.c
new file mode 100644 (file)
index 0000000..31072ab
--- /dev/null
+++ b/tools/perf/tests/open-syscall-all-cpus.c
@@ -0,0 +1,120 @@
+#include "evsel.h"
+#include "tests.h"
+#include "thread_map.h"
+#include "cpumap.h"
+#include "debug.h"
+
+int test__open_syscall_event_on_all_cpus(void)
+{
+       int err = -1, fd, cpu;
+       struct thread_map *threads;
+       struct cpu_map *cpus;
+       struct perf_evsel *evsel;
+       struct perf_event_attr attr;
+       unsigned int nr_open_calls = 111, i;
+       cpu_set_t cpu_set;
+       int id = trace_event__id("sys_enter_open");
+
+       if (id < 0) {
+               pr_debug("is debugfs mounted on /sys/kernel/debug?\n");
+               return -1;
+       }
+
+       threads = thread_map__new(-1, getpid(), UINT_MAX);
+       if (threads == NULL) {
+               pr_debug("thread_map__new\n");
+               return -1;
+       }
+
+       cpus = cpu_map__new(NULL);
+       if (cpus == NULL) {
+               pr_debug("cpu_map__new\n");
+               goto out_thread_map_delete;
+       }
+
+
+       CPU_ZERO(&cpu_set);
+
+       memset(&attr, 0, sizeof(attr));
+       attr.type = PERF_TYPE_TRACEPOINT;
+       attr.config = id;
+       evsel = perf_evsel__new(&attr, 0);
+       if (evsel == NULL) {
+               pr_debug("perf_evsel__new\n");
+               goto out_thread_map_delete;
+       }
+
+       if (perf_evsel__open(evsel, cpus, threads) < 0) {
+               pr_debug("failed to open counter: %s, "
+                        "tweak /proc/sys/kernel/perf_event_paranoid?\n",
+                        strerror(errno));
+               goto out_evsel_delete;
+       }
+
+       for (cpu = 0; cpu < cpus->nr; ++cpu) {
+               unsigned int ncalls = nr_open_calls + cpu;
+               /*
+                * XXX eventually lift this restriction in a way that
+                * keeps perf building on older glibc installations
+                * without CPU_ALLOC. 1024 cpus in 2010 still seems
+                * a reasonable upper limit tho :-)
+                */
+               if (cpus->map[cpu] >= CPU_SETSIZE) {
+                       pr_debug("Ignoring CPU %d\n", cpus->map[cpu]);
+                       continue;
+               }
+
+               CPU_SET(cpus->map[cpu], &cpu_set);
+               if (sched_setaffinity(0, sizeof(cpu_set), &cpu_set) < 0) {
+                       pr_debug("sched_setaffinity() failed on CPU %d: %s ",
+                                cpus->map[cpu],
+                                strerror(errno));
+                       goto out_close_fd;
+               }
+               for (i = 0; i < ncalls; ++i) {
+                       fd = open("/etc/passwd", O_RDONLY);
+                       close(fd);
+               }
+               CPU_CLR(cpus->map[cpu], &cpu_set);
+       }
+
+       /*
+        * Here we need to explicitely preallocate the counts, as if
+        * we use the auto allocation it will allocate just for 1 cpu,
+        * as we start by cpu 0.
+        */
+       if (perf_evsel__alloc_counts(evsel, cpus->nr) < 0) {
+               pr_debug("perf_evsel__alloc_counts(ncpus=%d)\n", cpus->nr);
+               goto out_close_fd;
+       }
+
+       err = 0;
+
+       for (cpu = 0; cpu < cpus->nr; ++cpu) {
+               unsigned int expected;
+
+               if (cpus->map[cpu] >= CPU_SETSIZE)
+                       continue;
+
+               if (perf_evsel__read_on_cpu(evsel, cpu, 0) < 0) {
+                       pr_debug("perf_evsel__read_on_cpu\n");
+                       err = -1;
+                       break;
+               }
+
+               expected = nr_open_calls + cpu;
+               if (evsel->counts->cpu[cpu].val != expected) {
+                       pr_debug("perf_evsel__read_on_cpu: expected to intercept %d calls on cpu %d, got %" PRIu64 "\n",
+                                expected, cpus->map[cpu], evsel->counts->cpu[cpu].val);
+                       err = -1;
+               }
+       }
+
+out_close_fd:
+       perf_evsel__close_fd(evsel, 1, threads->nr);
+out_evsel_delete:
+       perf_evsel__delete(evsel);
+out_thread_map_delete:
+       thread_map__delete(threads);
+       return err;
+}

diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index bac133e..c2887f2 100644 (file)
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -4,6 +4,7 @@
 /* Tests */
 int test__vmlinux_matches_kallsyms(void);
 int test__open_syscall_event(void);
+int test__open_syscall_event_on_all_cpus(void);
 
 /* Util */
 int trace_event__id(const char *evname);