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Date: Tue, 3 Nov 2015 10:44:42 +0000
From: Wang Nan <wangnan0@...wei.com>
To: <acme@...nel.org>
CC: <lizefan@...wei.com>, <pi3orama@....com>,
<linux-kernel@...r.kernel.org>, Wang Nan <wangnan0@...wei.com>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Namhyung Kim <namhyung@...nel.org>
Subject: [PATCH 1/5] perf test: Keep test result clean if '-v' not set
According to [1], 'perf state' should avoid output too much information
if '-v' not set, only 'Ok', 'FAIL' or 'Skip' need to be printed.
This patch removes sereval stderr output to make output clean.
Before this patch:
# perf test dummy
23: Test using a dummy software event to keep tracking : (not supported) Ok
After this patch:
# perf test dummy
23: Test using a dummy software event to keep tracking : Skip
[1] http://lkml.kernel.org/r/20151020134155.GE4400@redhat.com
Signed-off-by: Wang Nan <wangnan0@...wei.com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Link: http://lkml.kernel.org/n/tip-446450727-218554-1-git-send-email-wangnan0@huawei.com
---
tools/perf/tests/attr.c | 3 +--
tools/perf/tests/code-reading.c | 8 ++++----
tools/perf/tests/keep-tracking.c | 4 ++--
tools/perf/tests/llvm.c | 11 ++++-------
tools/perf/tests/switch-tracking.c | 4 ++--
5 files changed, 13 insertions(+), 17 deletions(-)
diff --git a/tools/perf/tests/attr.c b/tools/perf/tests/attr.c
index 2dfc9ad..638875a 100644
--- a/tools/perf/tests/attr.c
+++ b/tools/perf/tests/attr.c
@@ -171,6 +171,5 @@ int test__attr(void)
!lstat(path_perf, &st))
return run_dir(path_dir, path_perf);
- fprintf(stderr, " (omitted)");
- return 0;
+ return TEST_SKIP;
}
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 49b1959..a767a64 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -613,16 +613,16 @@ int test__code_reading(void)
case TEST_CODE_READING_OK:
return 0;
case TEST_CODE_READING_NO_VMLINUX:
- fprintf(stderr, " (no vmlinux)");
+ pr_debug("no vmlinux\n");
return 0;
case TEST_CODE_READING_NO_KCORE:
- fprintf(stderr, " (no kcore)");
+ pr_debug("no kcore\n");
return 0;
case TEST_CODE_READING_NO_ACCESS:
- fprintf(stderr, " (no access)");
+ pr_debug("no access\n");
return 0;
case TEST_CODE_READING_NO_KERNEL_OBJ:
- fprintf(stderr, " (no kernel obj)");
+ pr_debug("no kernel obj\n");
return 0;
default:
return -1;
diff --git a/tools/perf/tests/keep-tracking.c b/tools/perf/tests/keep-tracking.c
index 4d4b983..a2e2269 100644
--- a/tools/perf/tests/keep-tracking.c
+++ b/tools/perf/tests/keep-tracking.c
@@ -90,8 +90,8 @@ int test__keep_tracking(void)
evsel->attr.enable_on_exec = 0;
if (perf_evlist__open(evlist) < 0) {
- fprintf(stderr, " (not supported)");
- err = 0;
+ pr_debug("Unable to open dummy and cycles event\n");
+ err = TEST_SKIP;
goto out_err;
}
diff --git a/tools/perf/tests/llvm.c b/tools/perf/tests/llvm.c
index 52d5597..512d362 100644
--- a/tools/perf/tests/llvm.c
+++ b/tools/perf/tests/llvm.c
@@ -36,7 +36,7 @@ static int test__bpf_parsing(void *obj_buf, size_t obj_buf_sz)
static int test__bpf_parsing(void *obj_buf __maybe_unused,
size_t obj_buf_sz __maybe_unused)
{
- fprintf(stderr, " (skip bpf parsing)");
+ pr_debug("Skip bpf parsing\n");
return 0;
}
#endif
@@ -55,7 +55,7 @@ int test__llvm(void)
* and clang is not found in $PATH, and this is not perf test -v
*/
if (verbose == 0 && !llvm_param.user_set_param && llvm__search_clang()) {
- fprintf(stderr, " (no clang, try 'perf test -v LLVM')");
+ pr_debug("No clang and no verbosive, skip this test\n");
return TEST_SKIP;
}
@@ -86,11 +86,8 @@ int test__llvm(void)
err = llvm__compile_bpf("-", &obj_buf, &obj_buf_sz);
verbose = old_verbose;
- if (err) {
- if (!verbose)
- fprintf(stderr, " (use -v to see error message)");
- return -1;
- }
+ if (err)
+ return TEST_FAIL;
err = test__bpf_parsing(obj_buf, obj_buf_sz);
free(obj_buf);
diff --git a/tools/perf/tests/switch-tracking.c b/tools/perf/tests/switch-tracking.c
index e698742..a02af50 100644
--- a/tools/perf/tests/switch-tracking.c
+++ b/tools/perf/tests/switch-tracking.c
@@ -366,7 +366,7 @@ int test__switch_tracking(void)
/* Third event */
if (!perf_evlist__can_select_event(evlist, sched_switch)) {
- fprintf(stderr, " (no sched_switch)");
+ pr_debug("No sched_switch\n");
err = 0;
goto out;
}
@@ -442,7 +442,7 @@ int test__switch_tracking(void)
}
if (perf_evlist__open(evlist) < 0) {
- fprintf(stderr, " (not supported)");
+ pr_debug("Not supported\n");
err = 0;
goto out;
}
--
1.8.3.4
--
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