[tip:perf/core] perf test: Print result for each LLVM subtest
From: tip-bot for Wang Nan
Date: Mon Nov 23 2015 - 11:10:00 EST
Commit-ID: e8c6d500447c577e669c24ec04cd4173fe9f9afb
Gitweb: http://git.kernel.org/tip/e8c6d500447c577e669c24ec04cd4173fe9f9afb
Author: Wang Nan <wangnan0@xxxxxxxxxx>
AuthorDate: Tue, 17 Nov 2015 08:32:48 +0000
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 19 Nov 2015 13:19:16 -0300
perf test: Print result for each LLVM subtest
Currently 'perf test llvm' and 'perf test BPF' have multiple sub-tests,
but the result is provided in only one line:
# perf test LLVM
35: Test LLVM searching and compiling : Ok
This patch introduces sub-tests support, allowing 'perf test' to report
result for each sub-tests:
# perf test LLVM
35: Test LLVM searching and compiling :
35.1: Basic BPF llvm compiling test : Ok
35.2: Test kbuild searching : Ok
35.3: Compile source for BPF prologue generation test : Ok
When a failure happens:
# cat ~/.perfconfig
[llvm]
clang-path = "/bin/false"
# perf test LLVM
35: Test LLVM searching and compiling :
35.1: Basic BPF llvm compiling test : FAILED!
35.2: Test kbuild searching : Skip
35.3: Compile source for BPF prologue generation test : Skip
And:
# rm ~/.perfconfig
# ./perf test LLVM
35: Test LLVM searching and compiling :
35.1: Basic BPF llvm compiling test : Skip
35.2: Test kbuild searching : Skip
35.3: Compile source for BPF prologue generation test : Skip
Skip by user:
# ./perf test -s 1,`seq -s , 3 42`
1: vmlinux symtab matches kallsyms : Skip (user override)
2: detect openat syscall event : Ok
...
35: Test LLVM searching and compiling : Skip (user override)
...
Suggested-and-Tested-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Signed-off-by: Wang Nan <wangnan0@xxxxxxxxxx>
Cc: Alexei Starovoitov <ast@xxxxxxxxxx>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
Cc: Zefan Li <lizefan@xxxxxxxxxx>
Cc: pi3orama@xxxxxxx
Link: http://lkml.kernel.org/r/1447749170-175898-4-git-send-email-wangnan0@xxxxxxxxxx
[ Changed so that func is not on an anonymous union ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/tests/builtin-test.c | 91 ++++++++++++++++++++++++++++++++++-------
tools/perf/tests/llvm.c | 65 ++++++++++++++---------------
tools/perf/tests/tests.h | 9 ++++
3 files changed, 115 insertions(+), 50 deletions(-)
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 9cf4892..8136609 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -160,6 +160,11 @@ static struct test generic_tests[] = {
{
.desc = "Test LLVM searching and compiling",
.func = test__llvm,
+ .subtest = {
+ .skip_if_fail = true,
+ .get_nr = test__llvm_subtest_get_nr,
+ .get_desc = test__llvm_subtest_get_desc,
+ },
},
{
.desc = "Test topology in session",
@@ -237,6 +242,40 @@ static int run_test(struct test *test, int subtest)
for (j = 0; j < ARRAY_SIZE(tests); j++) \
for (t = &tests[j][0]; t->func; t++)
+static int test_and_print(struct test *t, bool force_skip, int subtest)
+{
+ int err;
+
+ if (!force_skip) {
+ pr_debug("\n--- start ---\n");
+ err = run_test(t, subtest);
+ pr_debug("---- end ----\n");
+ } else {
+ pr_debug("\n--- force skipped ---\n");
+ err = TEST_SKIP;
+ }
+
+ if (!t->subtest.get_nr)
+ pr_debug("%s:", t->desc);
+ else
+ pr_debug("%s subtest %d:", t->desc, subtest);
+
+ switch (err) {
+ case TEST_OK:
+ pr_info(" Ok\n");
+ break;
+ case TEST_SKIP:
+ color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
+ break;
+ case TEST_FAIL:
+ default:
+ color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
+ break;
+ }
+
+ return err;
+}
+
static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
{
struct test *t;
@@ -264,21 +303,43 @@ static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
continue;
}
- pr_debug("\n--- start ---\n");
- err = run_test(t, i);
- pr_debug("---- end ----\n%s:", t->desc);
-
- switch (err) {
- case TEST_OK:
- pr_info(" Ok\n");
- break;
- case TEST_SKIP:
- color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
- break;
- case TEST_FAIL:
- default:
- color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
- break;
+ if (!t->subtest.get_nr) {
+ test_and_print(t, false, -1);
+ } else {
+ int subn = t->subtest.get_nr();
+ /*
+ * minus 2 to align with normal testcases.
+ * For subtest we print additional '.x' in number.
+ * for example:
+ *
+ * 35: Test LLVM searching and compiling :
+ * 35.1: Basic BPF llvm compiling test : Ok
+ */
+ int subw = width > 2 ? width - 2 : width;
+ bool skip = false;
+ int subi;
+
+ if (subn <= 0) {
+ color_fprintf(stderr, PERF_COLOR_YELLOW,
+ " Skip (not compiled in)\n");
+ continue;
+ }
+ pr_info("\n");
+
+ for (subi = 0; subi < subn; subi++) {
+ int len = strlen(t->subtest.get_desc(subi));
+
+ if (subw < len)
+ subw = len;
+ }
+
+ for (subi = 0; subi < subn; subi++) {
+ pr_info("%2d.%1d: %-*s:", i, subi + 1, subw,
+ t->subtest.get_desc(subi));
+ err = test_and_print(t, skip, subi);
+ if (err != TEST_OK && t->subtest.skip_if_fail)
+ skip = true;
+ }
}
}
diff --git a/tools/perf/tests/llvm.c b/tools/perf/tests/llvm.c
index 4350c45..06f45c1 100644
--- a/tools/perf/tests/llvm.c
+++ b/tools/perf/tests/llvm.c
@@ -46,7 +46,7 @@ static struct {
},
[LLVM_TESTCASE_BPF_PROLOGUE] = {
.source = test_llvm__bpf_test_prologue_prog,
- .desc = "Test BPF prologue generation",
+ .desc = "Compile source for BPF prologue generation test",
},
};
@@ -131,44 +131,39 @@ out:
return ret;
}
-int test__llvm(int subtest __maybe_unused)
+int test__llvm(int subtest)
{
- enum test_llvm__testcase i;
+ int ret;
+ void *obj_buf = NULL;
+ size_t obj_buf_sz = 0;
- for (i = 0; i < __LLVM_TESTCASE_MAX; i++) {
- int ret;
- void *obj_buf = NULL;
- size_t obj_buf_sz = 0;
+ if ((subtest < 0) || (subtest >= __LLVM_TESTCASE_MAX))
+ return TEST_FAIL;
- ret = test_llvm__fetch_bpf_obj(&obj_buf, &obj_buf_sz,
- i, false);
+ ret = test_llvm__fetch_bpf_obj(&obj_buf, &obj_buf_sz,
+ subtest, false);
- if (ret == TEST_OK) {
- ret = test__bpf_parsing(obj_buf, obj_buf_sz);
- if (ret != TEST_OK)
- pr_debug("Failed to parse test case '%s'\n",
- bpf_source_table[i].desc);
- }
- free(obj_buf);
-
- switch (ret) {
- case TEST_SKIP:
- return TEST_SKIP;
- case TEST_OK:
- break;
- default:
- /*
- * Test 0 is the basic LLVM test. If test 0
- * fail, the basic LLVM support not functional
- * so the whole test should fail. If other test
- * case fail, it can be fixed by adjusting
- * config so don't report error.
- */
- if (i == 0)
- return TEST_FAIL;
- else
- return TEST_SKIP;
+ if (ret == TEST_OK) {
+ ret = test__bpf_parsing(obj_buf, obj_buf_sz);
+ if (ret != TEST_OK) {
+ pr_debug("Failed to parse test case '%s'\n",
+ bpf_source_table[subtest].desc);
}
}
- return TEST_OK;
+ free(obj_buf);
+
+ return ret;
+}
+
+int test__llvm_subtest_get_nr(void)
+{
+ return __LLVM_TESTCASE_MAX;
+}
+
+const char *test__llvm_subtest_get_desc(int subtest)
+{
+ if ((subtest < 0) || (subtest >= __LLVM_TESTCASE_MAX))
+ return NULL;
+
+ return bpf_source_table[subtest].desc;
}
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index 204e4ee..f92af52 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -1,6 +1,8 @@
#ifndef TESTS_H
#define TESTS_H
+#include <stdbool.h>
+
#define TEST_ASSERT_VAL(text, cond) \
do { \
if (!(cond)) { \
@@ -27,6 +29,11 @@ enum {
struct test {
const char *desc;
int (*func)(int subtest);
+ struct {
+ bool skip_if_fail;
+ int (*get_nr)(void);
+ const char *(*get_desc)(int subtest);
+ } subtest;
};
/* Tests */
@@ -66,6 +73,8 @@ int test__fdarray__add(int subtest);
int test__kmod_path__parse(int subtest);
int test__thread_map(int subtest);
int test__llvm(int subtest);
+const char *test__llvm_subtest_get_desc(int subtest);
+int test__llvm_subtest_get_nr(void);
int test__bpf(int subtest);
int test_session_topology(int subtest);
--
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