From: Andi Kleen <[email protected]> Add some simple tests to perf test to test data source printing.
v2: Make the tests actually checked for the correct name of Forward v3: Adjust to new encoding Committer notes: Avoid the in place declaration to make this build with older compilers, for instance, in Debian 7 we get: tests/mem.c: In function 'test__mem': tests/mem.c:30:5: error: missing initializer [-Werror=missing-field-initializers] tests/mem.c:30:5: error: (near initialization for '(anonymous).<anonymous>.mem_snoop') [-Werror=missing-field-initializers] So just zero a struct, then go on building the unions as needed, reusing settings from the previous test, i.e. local -> remote, etc. Signed-off-by: Andi Kleen <[email protected]> Acked-by: Peter Zijlstra <[email protected]> Cc: Jiri Olsa <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/tests/Build | 1 + tools/perf/tests/builtin-test.c | 4 +++ tools/perf/tests/mem.c | 56 +++++++++++++++++++++++++++++++++++++++++ tools/perf/tests/tests.h | 1 + 4 files changed, 62 insertions(+) create mode 100644 tools/perf/tests/mem.c diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build index 84222bdb8689..87bf3edb037c 100644 --- a/tools/perf/tests/Build +++ b/tools/perf/tests/Build @@ -34,6 +34,7 @@ perf-y += thread-map.o perf-y += llvm.o llvm-src-base.o llvm-src-kbuild.o llvm-src-prologue.o llvm-src-relocation.o perf-y += bpf.o perf-y += topology.o +perf-y += mem.o perf-y += cpumap.o perf-y += stat.o perf-y += event_update.o diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 9ecc44e68990..377bea009163 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -48,6 +48,10 @@ static struct test generic_tests[] = { .func = test__basic_mmap, }, { + .desc = "Test data source output", + .func = test__mem, + }, + { .desc = "Parse event definition strings", .func = test__parse_events, }, diff --git a/tools/perf/tests/mem.c b/tools/perf/tests/mem.c new file mode 100644 index 000000000000..21952e1e6e6d --- /dev/null +++ b/tools/perf/tests/mem.c @@ -0,0 +1,56 @@ +#include "util/mem-events.h" +#include "util/symbol.h" +#include "linux/perf_event.h" +#include "util/debug.h" +#include "tests.h" +#include <string.h> + +static int check(union perf_mem_data_src data_src, + const char *string) +{ + char out[100]; + char failure[100]; + struct mem_info mi = { .data_src = data_src }; + + int n; + + n = perf_mem__snp_scnprintf(out, sizeof out, &mi); + n += perf_mem__lvl_scnprintf(out + n, sizeof out - n, &mi); + snprintf(failure, sizeof failure, "unexpected %s", out); + TEST_ASSERT_VAL(failure, !strcmp(string, out)); + return 0; +} + +int test__mem(struct test *text __maybe_unused, int subtest __maybe_unused) +{ + int ret = 0; + union perf_mem_data_src src; + + memset(&src, 0, sizeof(src)); + + src.mem_lvl = PERF_MEM_LVL_HIT; + src.mem_lvl_num = 4; + + ret |= check(src, "N/AL4 hit"); + + src.mem_remote = 1; + + ret |= check(src, "N/ARemote L4 hit"); + + src.mem_lvl = PERF_MEM_LVL_MISS; + src.mem_lvl_num = PERF_MEM_LVLNUM_PMEM; + src.mem_remote = 0; + + ret |= check(src, "N/APMEM miss"); + + src.mem_remote = 1; + + ret |= check(src, "N/ARemote PMEM miss"); + + src.mem_snoopx = PERF_MEM_SNOOPX_FWD; + src.mem_lvl_num = PERF_MEM_LVLNUM_RAM; + + ret |= check(src , "FwdRemote RAM miss"); + + return ret; +} diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index c46ae818aac8..921412a6a880 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -58,6 +58,7 @@ int test__python_use(struct test *test, int subtest); int test__bp_signal(struct test *test, int subtest); int test__bp_signal_overflow(struct test *test, int subtest); int test__task_exit(struct test *test, int subtest); +int test__mem(struct test *test, int subtest); int test__sw_clock_freq(struct test *test, int subtest); int test__code_reading(struct test *test, int subtest); int test__sample_parsing(struct test *test, int subtest); -- 2.13.5
