Messages in this thread Patch in this message | | | From | Andi Kleen <> | Subject | [PATCH 8/9] perf, tools, test: Add test case for alias and JSON parsing v2 | Date | Fri, 30 May 2014 14:50:14 -0700 |
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From: Andi Kleen <ak@linux.intel.com>
Add a simple test case to perf test that runs perf download and parses all the events. This needs adding an all event iterator to pmu.c
v2: Rename identifiers Signed-off-by: Andi Kleen <ak@linux.intel.com> --- tools/perf/Makefile.perf | 1 + tools/perf/tests/aliases.c | 58 +++++++++++++++++++++++++++++++++++++++++ tools/perf/tests/builtin-test.c | 4 +++ tools/perf/tests/tests.h | 1 + tools/perf/util/pmu.c | 18 +++++++++++++ tools/perf/util/pmu.h | 2 ++ 6 files changed, 84 insertions(+) create mode 100644 tools/perf/tests/aliases.c
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 741d213..c1ece75 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -418,6 +418,7 @@ endif LIB_OBJS += $(OUTPUT)tests/code-reading.o LIB_OBJS += $(OUTPUT)tests/sample-parsing.o LIB_OBJS += $(OUTPUT)tests/parse-no-sample-id-all.o +LIB_OBJS += $(OUTPUT)tests/aliases.o ifndef NO_DWARF_UNWIND ifeq ($(ARCH),$(filter $(ARCH),x86 arm)) LIB_OBJS += $(OUTPUT)tests/dwarf-unwind.o diff --git a/tools/perf/tests/aliases.c b/tools/perf/tests/aliases.c new file mode 100644 index 0000000..68396e7 --- /dev/null +++ b/tools/perf/tests/aliases.c @@ -0,0 +1,58 @@ +/* Check if we can set up all aliases and can read JSON files */ +#include <stdlib.h> +#include "tests.h" +#include "pmu.h" +#include "evlist.h" +#include "parse-events.h" + +static struct perf_evlist *evlist; + +static int num_events; +static int failed; + +static int test__event(const char *name) +{ + int ret; + + /* Not supported for now */ + if (!strncmp(name, "energy-", 7)) + return 0; + + ret = parse_events(evlist, name); + + if (ret) { + /* + * We only print on failure because common perf setups + * have events that cannot be parsed. + */ + fprintf(stderr, "invalid or unsupported event: '%s'\n", name); + ret = 0; + failed++; + } else + num_events++; + return ret; +} + +int test__aliases(void) +{ + int err; + + /* Download JSON files */ + /* XXX assumes perf is installed */ + /* For now user must manually download */ + if (0 && system("perf download > /dev/null") < 0) { + /* Don't error out for this for now */ + fprintf(stderr, "perf download failed\n"); + } + + evlist = perf_evlist__new(); + if (evlist == NULL) + return -ENOMEM; + + err = pmu_iterate_events(test__event); + fprintf(stderr, " Parsed %d events :", num_events); + if (failed > 0) + pr_debug(" %d events failed", failed); + perf_evlist__delete(evlist); + return err; +} diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 831f52c..23a0399 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -140,6 +140,10 @@ static struct test { .func = test__hists_output, }, { + .desc = "Test parsing JSON aliases", + .func = test__aliases, + }, + { .func = NULL, }, }; diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index d76c0e2..ddef0fc 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -45,6 +45,7 @@ int test__hists_filter(void); int test__mmap_thread_lookup(void); int test__thread_mg_share(void); int test__hists_output(void); +int test__aliases(void); #if defined(__x86_64__) || defined(__i386__) || defined(__arm__) #ifdef HAVE_DWARF_UNWIND_SUPPORT diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 8714f9a..b87f520 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -869,3 +869,21 @@ bool pmu_have_event(const char *pname, const char *name) } return false; } + +int pmu_iterate_events(int (*func)(const char *name)) +{ + int ret = 0; + struct perf_pmu *pmu; + struct perf_pmu_alias *alias; + + perf_pmu__find("cpu"); /* Load PMUs */ + pmu = NULL; + while ((pmu = perf_pmu__scan(pmu)) != NULL) { + list_for_each_entry(alias, &pmu->aliases, list) { + ret = func(alias->name); + if (ret != 0) + break; + } + } + return ret; +} diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h index 583d21e..a8ed283 100644 --- a/tools/perf/util/pmu.h +++ b/tools/perf/util/pmu.h @@ -47,5 +47,7 @@ bool pmu_have_event(const char *pname, const char *name); int perf_pmu__test(void); +int pmu_iterate_events(int (*func)(const char *name)); + extern const char *json_file; #endif /* __PMU_H */ -- 1.9.0
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