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  1. 23 8月, 2017 1 次提交
  3. 12 8月, 2017 2 次提交
    • A
      perf test: Make 'list' use same filtering code as main 'perf test' · 6d02acc1
      由 Arnaldo Carvalho de Melo 提交于 
      Before:

  # perf test Synth
  39: Synthesize thread map  : Ok
  41: Synthesize cpu map     : Ok
  42: Synthesize stat config : Ok
  43: Synthesize stat        : Ok
  44: Synthesize stat round  : Ok
  45: Synthesize attr update : Ok
  # perf test list Synth
  #

After:

  # perf test Synth
  39: Synthesize thread map  : Ok
  41: Synthesize cpu map     : Ok
  42: Synthesize stat config : Ok
  43: Synthesize stat        : Ok
  44: Synthesize stat round  : Ok
  45: Synthesize attr update : Ok
  # perf test list Synth
  39: Synthesize thread map
  41: Synthesize cpu map
  42: Synthesize stat config
  43: Synthesize stat
  44: Synthesize stat round
  45: Synthesize attr update
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-v95tqqzuwawsmds3zn2mosje@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      6d02acc1
    • A
      perf test: Add infrastructure to run shell based tests · 1209b273
      由 Arnaldo Carvalho de Melo 提交于 
      To allow testing by directly using perf tools in scripts, checking that
the effects on the system are the ones expected and that the output
produced is as well the desired one.

For instance, adding a probe at a well known location with 'perf probe',
then checking that the results from using that probe to record are the
desired ones, etc.

The next csets will introduce tests using this new testing
infrastructure.

The scripts should return 0 for Ok, 1 for FAIL and 2 for SKIP.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-swbpn7amrjqffh83lsr39s9p@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      1209b273
  5. 11 8月, 2017 2 次提交
    • A
      perf test: Add 'struct test *' to the test functions · 81f17c90
      由 Arnaldo Carvalho de Melo 提交于 
      This way we'll be able to pass more test specific parameters without
having to change this function signature.

Will be used by the upcoming 'shell tests', shell scripts that will
call perf tools and check if they work as expected, comparing its
effects on the system (think 'perf probe foo') the output produced, etc.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-wq250w7j1opbzyiynozuajbl@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      81f17c90
    • A
      perf test: Make 'list' subcommand match main 'perf test' numbering/matching · 28765bf2
      由 Arnaldo Carvalho de Melo 提交于 
      Before:

  # perf test Synth
  39: Synthesize thread map  : Ok
  41: Synthesize cpu map     : Ok
  42: Synthesize stat config : Ok
  43: Synthesize stat        : Ok
  44: Synthesize stat round  : Ok
  45: Synthesize attr update : Ok
  #
  # perf test list Synth
   1: Synthesize thread map
   2: Synthesize cpu map
   3: Synthesize stat config
   4: Synthesize stat
   5: Synthesize stat round
   6: Synthesize attr update
  #

After:

  # perf test Synth
  39: Synthesize thread map  : Ok
  41: Synthesize cpu map     : Ok
  42: Synthesize stat config : Ok
  43: Synthesize stat        : Ok
  44: Synthesize stat round  : Ok
  45: Synthesize attr update : Ok
  #
  # perf test list Synth
  39: Synthesize thread map
  41: Synthesize cpu map
  42: Synthesize stat config
  43: Synthesize stat
  44: Synthesize stat round
  45: Synthesize attr update
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Matt Fleming <matt.fleming@intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-pjhuhkphs7o3tkbqrukfv6bz@git.kernel.org
Fixes: e8210cef ("perf tests: Introduce iterator function for tests")
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      28765bf2
  7. 06 6月, 2017 1 次提交
  9. 25 4月, 2017 1 次提交
  11. 20 4月, 2017 2 次提交
  13. 27 3月, 2017 1 次提交
  15. 23 3月, 2017 1 次提交
    • A
      perf tools: Add a simple expression parser for JSON · 07516736
      由 Andi Kleen 提交于 
      Add a simple expression parser good enough to parse JSON relation
expressions. The parser is implemented using bison.

This is just intended as an simple parser for internal usage in the
event lists, not the beginning of a "perf scripting language"

v2: Use expr__ prefix instead of expr_
    Support multiple free variables for parser

Committer note:

The v2 patch had:

  %define api.pure full

In expr.y, that is a feature introduced in bison 2.7, to have reentrant
parsers, not using global variables, which would make tools/perf stop
building with the bison version shipped in older distros, so Andi
realised that the other parsers (e.g. parse-events.y) were using:

  %pure-parser

Which is present in older versions of bison and fits the bill.

I added:

  CFLAGS_expr-bison.o += -DYYENABLE_NLS=0 -DYYLTYPE_IS_TRIVIAL=0 -w

To finally make it build, copying what was there for pmu-bison.o,
another parser.
Signed-off-by: NAndi Kleen <ak@linux.intel.com>
Acked-by: NJiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170320201711.14142-8-andi@firstfloor.org
[ stdlib.h is needed in tests/expr.c for free() fixing build in systems such as ubuntu:16.04-x-s390 ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      07516736
  17. 20 2月, 2017 1 次提交
  19. 12 1月, 2017 1 次提交
  21. 16 12月, 2016 1 次提交
  23. 06 12月, 2016 1 次提交
    • W
      perf clang: Add builtin clang support ant test case · 00b86691
      由 Wang Nan 提交于 
      Add basic clang support in clang.cpp and test__clang() testcase. The
first testcase checks if builtin clang is able to generate LLVM IR.

tests/clang.c is a proxy. Real testcase resides in
utils/c++/clang-test.cpp in c++ and exports C interface to perf test
subsystem.

Test result:

   $ perf test -v clang
   51: builtin clang support                               :
   51.1: Test builtin clang compile C source to IR              :
   --- start ---
   test child forked, pid 13215
   test child finished with 0
   ---- end ----
   Test builtin clang support subtest 0: Ok

Committer note:

Make sure you've enabled CLANG and LLVM builtin support by setting
the LIBCLANGLLVM variable on the make command line, e.g.:

  make LIBCLANGLLVM=1 O=/tmp/build/perf -C tools/perf install-bin

Otherwise you'll get this when trying to do the 'perf test' call above:

  # perf test clang
  51: builtin clang support                      : Skip (not compiled in)
  #
Signed-off-by: NWang Nan <wangnan0@huawei.com>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Joe Stringer <joe@ovn.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/20161126070354.141764-11-wangnan0@huawei.com
[ Removed "Test" from descriptions, redundant and already removed from all the other entries ]
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      00b86691
  25. 29 11月, 2016 2 次提交
    • A
      perf test: Remove "test" and similar strings from test descriptions · 030910c0
      由 Arnaldo Carvalho de Melo 提交于 
      Having "test" in almost all test descriptions is redundant, simplify it
removing and rewriting tests with such descriptions.

End result:

  # perf test
   1: vmlinux symtab matches kallsyms            : Ok
   2: Detect openat syscall event                : Ok
   3: Detect openat syscall event on all cpus    : Ok
   4: Read samples using the mmap interface      : Ok
   5: Parse event definition strings             : Ok
   6: PERF_RECORD_* events & perf_sample fields  : Ok
   7: Parse perf pmu format                      : Ok
   8: DSO data read                              : Ok
   9: DSO data cache                             : Ok
  10: DSO data reopen                            : Ok
  11: Roundtrip evsel->name                      : Ok
  12: Parse sched tracepoints fields             : Ok
  13: syscalls:sys_enter_openat event fields     : Ok
  14: Setup struct perf_event_attr               : Ok
  15: Match and link multiple hists              : Ok
  16: 'import perf' in python                    : Ok
  17: Breakpoint overflow signal handler         : Ok
  18: Breakpoint overflow sampling               : Ok
  19: Number of exit events of a simple workload : Ok
  20: Software clock events period values        : Ok
  21: Object code reading                        : Ok
  22: Sample parsing                             : Ok
  23: Use a dummy software event to keep tracking: Ok
  24: Parse with no sample_id_all bit set        : Ok
  25: Filter hist entries                        : Ok
  26: Lookup mmap thread                         : Ok
  27: Share thread mg                            : Ok
  28: Sort output of hist entries                : Ok
  29: Cumulate child hist entries                : Ok
  30: Track with sched_switch                    : Ok
  31: Filter fds with revents mask in a fdarray  : Ok
  32: Add fd to a fdarray, making it autogrow    : Ok
  33: kmod_path__parse                           : Ok
  34: Thread map                                 : Ok
  35: LLVM search and compile                    :
  35.1: Basic BPF llvm compile                    : Ok
  35.2: kbuild searching                          : Ok
  35.3: Compile source for BPF prologue generation: Ok
  35.4: Compile source for BPF relocation         : Ok
  36: Session topology                           : Ok
  37: BPF filter                                 :
  37.1: Basic BPF filtering                      : Ok
  37.2: BPF prologue generation                  : Ok
  37.3: BPF relocation checker                   : Ok
  38: Synthesize thread map                      : Ok
  39: Synthesize cpu map                         : Ok
  40: Synthesize stat config                     : Ok
  41: Synthesize stat                            : Ok
  42: Synthesize stat round                      : Ok
  43: Synthesize attr update                     : Ok
  44: Event times                                : Ok
  45: Read backward ring buffer                  : Ok
  46: Print cpu map                              : Ok
  47: Probe SDT events                           : Ok
  48: is_printable_array                         : Ok
  49: Print bitmap                               : Ok
  50: perf hooks                                 : Ok
  51: x86 rdpmc                                  : Ok
  52: Convert perf time to TSC                   : Ok
  53: DWARF unwind                               : Ok
  54: x86 instruction decoder - new instructions : Ok
  55: Intel cqm nmi context read                 : Skip
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-rx2lbfcrrio2yx1fxcljqy0e@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      030910c0
    • W
      perf tools: Introduce perf hooks · a074865e
      由 Wang Nan 提交于 
      Perf hooks allow hooking user code at perf events. They can be used for
manipulation of BPF maps, taking snapshot and reporting results. In this
patch two perf hook points are introduced: record_start and record_end.

To avoid buggy user actions, a SIGSEGV signal handler is introduced into
'perf record'. It turns off perf hook if it causes a segfault and report
an error to help debugging.

A test case for perf hook is introduced.

Test result:
  $ ./buildperf/perf test -v hook
  50: Test perf hooks                                          :
  --- start ---
  test child forked, pid 10311
  SIGSEGV is observed as expected, try to recover.
  Fatal error (SEGFAULT) in perf hook 'test'
  test child finished with 0
  ---- end ----
  Test perf hooks: Ok
Signed-off-by: NWang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Joe Stringer <joe@ovn.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/20161126070354.141764-5-wangnan0@huawei.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      a074865e
  27. 03 8月, 2016 1 次提交
  29. 19 7月, 2016 1 次提交
  31. 14 7月, 2016 1 次提交
  33. 13 7月, 2016 1 次提交
    • A
      tools: Introduce str_error_r() · c8b5f2c9
      由 Arnaldo Carvalho de Melo 提交于 
      The tools so far have been using the strerror_r() GNU variant, that
returns a string, be it the buffer passed or something else.

But that, besides being tricky in cases where we expect that the
function using strerror_r() returns the error formatted in a provided
buffer (we have to check if it returned something else and copy that
instead), breaks the build on systems not using glibc, like Alpine
Linux, where musl libc is used.

So, introduce yet another wrapper, str_error_r(), that has the GNU
interface, but uses the portable XSI variant of strerror_r(), so that
users rest asured that the provided buffer is used and it is what is
returned.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-d4t42fnf48ytlk8rjxs822tf@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      c8b5f2c9
  35. 01 7月, 2016 2 次提交
  37. 10 5月, 2016 1 次提交
  39. 30 3月, 2016 1 次提交
    • J
      perf tests: Add test to check for event times · b31d660d
      由 Jiri Olsa 提交于 
      This test creates software event 'cpu-clock' attaches it in several ways
and checks that enabled and running times match.

Committer notes:

Testing it:

  [acme@jouet linux]$ perf test -v times
  44: Test events times                                        :
  --- start ---
  test child forked, pid 27170
  attaching to spawned child, enable on exec
    OK    : ena 307328, run 307328
  attaching to current thread as enabled
    OK    : ena 7826, run 7826
  attaching to current thread as disabled
    OK    : ena 738, run 738
  attaching to CPU 0 as enabled
    SKIP  : not enough rights
  attaching to CPU 0 as enabled
    SKIP  : not enough rights
  test child finished with -2
  ---- end ----
  Test events times: Skip
  [acme@jouet linux]$

  [root@jouet ~]# perf test times
  44: Test events times                                        : Ok
  [root@jouet ~]# perf test -v times
  44: Test events times                                        :
  --- start ---
  test child forked, pid 27306
  attaching to spawned child, enable on exec
    OK    : ena 479290, run 479290
  attaching to current thread as enabled
    OK    : ena 11356, run 11356
  attaching to current thread as disabled
    OK    : ena 987, run 987
  attaching to CPU 0 as enabled
    OK    : ena 3717, run 3717
  attaching to CPU 0 as enabled
    OK    : ena 2323, run 2323
  test child finished with 0
  ---- end ----
  Test events times: Ok
  [root@jouet ~]#
Signed-off-by: NJiri Olsa <jolsa@kernel.org>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1458823940-24583-7-git-send-email-jolsa@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      b31d660d
  41. 18 12月, 2015 7 次提交
  43. 14 12月, 2015 1 次提交
    • A
      perf test: Dump the stack when test segfaults when in verbose mode · b6847d2c
      由 Arnaldo Carvalho de Melo 提交于 
      E.g.:

  # perf test 26
  26: Test mmap thread lookup                                  : FAILED!
  # perf test -v 26
  26: Test mmap thread lookup                                  :
  --- start ---
  test child forked, pid 9269
  tid = 9269, map = 0x7ff99ff0c000
  tid = 9270, map = 0x7ff99ff0b000
  tid = 9271, map = 0x7ff99ff0a000
  tid = 9272, map = 0x7ff99ff09000
  perf: Segmentation fault
  Obtained 13 stack frames.
  perf(sighandler_dump_stack+0x41) [0x4e3541]
  /lib64/libc.so.6(+0x34960) [0x7ff99d5f6960]
  perf(thread__put+0x5b) [0x4c6f6b]
  perf(machine__process_event+0x14e) [0x4bd37e]
  perf(perf_event__synthesize_threads+0x3aa) [0x48678a]
  perf(test__mmap_thread_lookup+0x20a) [0x474e0a]
  perf() [0x460d56]
  perf(cmd_test+0x589) [0x461319]
  perf() [0x47c641]
  perf(main+0x617) [0x422317]
  /lib64/libc.so.6(__libc_start_main+0xf0) [0x7ff99d5e1fe0]
  perf() [0x422429]
  [(nil)]
  test child interrupted
  ---- end ----
  Test mmap thread lookup: FAILED!
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-sypazzsl4ptctrmlyi2zcmaj@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      b6847d2c
  45. 20 11月, 2015 4 次提交
    • W
      perf test: Mute test cases error messages if verbose == 0 · 5bcf2fe0
      由 Wang Nan 提交于 
      Sometimes error messages in breaks the pretty output of 'perf test'.
For example:

  # mv /lib/modules/4.3.0-rc4+/build/vmlinux{,.bak}
  # perf test LLVM BPF
  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
  37: Test BPF filter                                          :
  37.1: Test basic BPF filtering                               : Ok
  37.2: Test BPF prologue generation                           :Failed to find the path for kernel: No such file or directory FAILED!

This patch mute test cases thoroughly by redirect their stdout and
stderr to /dev/null when verbose == 0. After applying this patch:

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

  # ./perf test -v LLVM BPF
  35: Test LLVM searching and compiling                        :
  35.1: Basic BPF llvm compiling test                          :
  --- start ---
  test child forked, pid 13183
  Kernel build dir is set to /lib/modules/4.3.0-rc4+/build
  set env: KBUILD_DIR=/lib/modules/4.3.0-rc4+/build
  ...
  bpf: config 'func=null_lseek file->f_mode offset orig' is ok
  Looking at the vmlinux_path (7 entries long)
  Failed to find the path for kernel: No such file or directory
  bpf_probe: failed to convert perf probe eventsFailed to add events selected by BPF
  test child finished with -1
  ---- end ----
  Test BPF filter subtest 1: FAILED!
Signed-off-by: NWang Nan <wangnan0@huawei.com>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1447749170-175898-6-git-send-email-wangnan0@huawei.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      5bcf2fe0
    • W
      perf test: Print result for each BPF subtest · 77a0cf68
      由 Wang Nan 提交于 
      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: NArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: NWang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Zefan Li <lizefan@huawei.com>
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: NArnaldo Carvalho de Melo <acme@redhat.com>
      77a0cf68
    • W
      perf test: Print result for each LLVM subtest · e8c6d500
      由 Wang Nan 提交于 
      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: NArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: NWang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Zefan Li <lizefan@huawei.com>
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: NArnaldo Carvalho de Melo <acme@redhat.com>
      e8c6d500
    • A
      perf tests: Pass the subtest index to each test routine · 721a1f53
      由 Arnaldo Carvalho de Melo 提交于 
      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 <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-5genj0ficwdmelpoqlds0u4y@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      721a1f53
  47. 07 11月, 2015 2 次提交
  49. 06 10月, 2015 1 次提交