linux.git/tools/perf/tests/tests.h, branch v4.5

perf tools: Add event_update event unit type

2015-12-17T18:11:10+00:00

Adding unit type 'event update' event, that stores/transfer events unit
name. The unit name is part of the perf stat output data.

Signed-off-by: Jiri Olsa 
Tested-by: Kan Liang 
Cc: David Ahern 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1445784728-21732-22-git-send-email-jolsa@kernel.org
[ Rename __alloc() to __new() for consistency ]
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add stat round event synthesize function

2015-12-17T17:55:44+00:00

Introduce the perf_event__synthesize_stat_round function to
synthesize a 'struct stat_round_event'.

Signed-off-by: Jiri Olsa 
Tested-by: Kan Liang 
Cc: David Ahern 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1445784728-21732-19-git-send-email-jolsa@kernel.org
[ Renamed 'time' parameter to 'evtime' to fix build on older systems ]
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add stat event synthesize function

2015-12-17T17:55:31+00:00

Introduce the perf_event__synthesize_stat function to synthesize a
'struct stat_event'.

Signed-off-by: Jiri Olsa 
Tested-by: Kan Liang 
Cc: David Ahern 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1445784728-21732-16-git-send-email-jolsa@kernel.org
[ Renamed 'stat' parameter to 'st' to fix 'already defined' build error with older distros (e.g. RHEL6.7) ]
Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add stat config event synthesize function

2015-12-17T17:38:19+00:00

Introduce the perf_event__synthesize_stat_config to synthesize a 'struct
perf_stat_config'.

Storing the stat config in the form of tag-value pairs will, I believe,
sort out future version extensibility issues.

Signed-off-by: Jiri Olsa 
Tested-by: Kan Liang 
Cc: David Ahern 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1445784728-21732-13-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf cpu_map: Add cpu_map event synthesize function

2015-12-17T17:38:18+00:00

Introduce the perf_event__synthesize_cpu_map function to synthesize a
struct cpu_map.

Added generic interface:
  cpu_map_data__alloc
  cpu_map_data__synthesize

to make the cpu_map synthesizing usable for other events.

Signed-off-by: Jiri Olsa 
Tested-by: Kan Liang 
Cc: David Ahern 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1445784728-21732-9-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf thread_map: Add thread_map event sythesize function

2015-12-17T17:38:16+00:00

Introduce the perf_event__synthesize_thread_map2 function to synthesize
struct thread_map.

The perf_event__synthesize_thread_map name is already taken for
synthesizing the complete threads data (comm/mmap/fork).

Signed-off-by: Jiri Olsa 
Tested-by: Kan Liang 
Cc: David Ahern 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/1445784728-21732-5-git-send-email-jolsa@kernel.org
[ Rename thread_map_data_event to thread_map_event_entry ]
Signed-off-by: Arnaldo Carvalho de Melo

perf test: Print result for each BPF subtest

2015-11-19T16:19:16+00:00

This patch prints each sub-tests results for BPF testcases.

Before:

  # ./perf test BPF
  37: Test BPF filter                                          : Ok

After:

  # ./perf test BPF
  37: Test BPF filter                                          :
  37.1: Test basic BPF filtering                               : Ok
  37.2: Test BPF prologue generation                           : Ok

When a failure happens:

  # cat ~/.perfconfig
  [llvm]
      clang-path = "/bin/false"
  # ./perf test BPF
  37: Test BPF filter                                          :
  37.1: Test basic BPF filtering                               : Skip
  37.2: Test BPF prologue generation                           : Skip

Suggested-and-Tested-by: Arnaldo Carvalho de Melo 
Signed-off-by: Wang Nan 
Cc: Alexei Starovoitov 
Cc: Masami Hiramatsu 
Cc: Zefan Li 
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1447749170-175898-5-git-send-email-wangnan0@huawei.com
[ Fixed up not to use .func in an anonymous union ]
Signed-off-by: Arnaldo Carvalho de Melo

perf test: Print result for each LLVM subtest

2015-11-19T16:19:16+00:00

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 
Signed-off-by: Wang Nan 
Cc: Alexei Starovoitov 
Cc: Masami Hiramatsu 
Cc: Zefan Li 
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1447749170-175898-4-git-send-email-wangnan0@huawei.com
[ Changed so that func is not on an anonymous union ]
Signed-off-by: Arnaldo Carvalho de Melo

perf tests: Pass the subtest index to each test routine

2015-11-19T16:19:15+00:00

Some tests have sub-tests we want to run, so allow passing this.

Wang tried to avoid having to touch all tests, but then, having the
test.func in an anonymous union makes the build fail on older compilers,
like the one in RHEL6, where:

  test a = {
	.func = foo,
  };

fails.

To fix it leave the func pointer in the main structure and pass the subtest
index to all tests, end result function is the same, but we have just one
function pointer, not two, with and without the subtest index as an argument.

Cc: Adrian Hunter 
Cc: David Ahern 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Wang Nan 
Link: http://lkml.kernel.org/n/tip-5genj0ficwdmelpoqlds0u4y@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

perf test: Add 'perf test BPF'

2015-11-06T20:50:03+00:00

This patch adds BPF testcase for testing BPF event filtering.

By utilizing the result of 'perf test LLVM', this patch compiles the
eBPF sample program then test its ability. The BPF script in 'perf test
LLVM' lets only 50% samples generated by epoll_pwait() to be captured.
This patch runs that system call for 111 times, so the result should
contain 56 samples.

Signed-off-by: Wang Nan 
Tested-by: Arnaldo Carvalho de Melo 
Cc: Alexei Starovoitov 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Zefan Li 
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1446817783-86722-8-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo