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Date:   Thu, 13 Apr 2017 16:35:29 -0300
From:   Arnaldo Carvalho de Melo <>
To:     Ingo Molnar <>
        Arnaldo Carvalho de Melo <>,
        Adrian Hunter <>,
        Alexander Shishkin <>,
        Alexis Berlemont <>,
        Andi Kleen <>,
        David Carrillo-Cisneros <>,
        He Kuang <>, Jiri Olsa <>,
        Kim Phillips <>,
        Masami Hiramatsu <>,
        Mathieu Poirier <>,
        Paul Turner <>,
        Peter Zijlstra <>,
        Ravi Bangoria <>,
        Simon Que <>,
        Stephane Eranian <>,
        Wang Nan <>
Subject: [GIT PULL 0/7] perf/core improvements and fixes

Hi Ingo,

	Please consider pulling,

- Arnaldo

Test results at the end of this message, as usual.

Test results:

The first ones are container (docker) based builds of tools/perf with and
without libelf support, objtool where it is supported and samples/bpf/, ditto.
Where clang is available, it is also used to build perf with/without libelf.

For this specific pull request the samples/bpf/ was disabled, as 'make headers_install'
is failing with the following error, in this case in fedora:rawhide:

    INSTALL usr/include/uapi/ (0 file)
  /git/linux/scripts/Makefile.headersinst:62: *** Missing generated UAPI file ./arch/x86/include/generated/uapi/asm/unistd_32.h.  Stop.
  make[1]: *** [/git/linux/Makefile:1151: headers_install] Error 2
  make[1]: Leaving directory '/tmp/build/linux'
  make: *** [Makefile:152: sub-make] Error 2
  make: Leaving directory '/git/linux'

I'll investigate later, perf and objtool builds just fine, with clang and gcc.

Several are cross builds, the ones with -x-ARCH, and the android one, and those
may not have all the features built, due to lack of multi-arch devel packages,
available and being used so far on just a few, like

The 'perf test' one will perform a variety of tests exercising
tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands
with a variety of command line event specifications to then intercept the
sys_perf_event syscall to check that the perf_event_attr fields are set up as
expected, among a variety of other unit tests.

Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/
with a variety of feature sets, exercising the build with an incomplete set of
features as well as with a complete one. It is planned to have it run on each
of the containers mentioned above, using some container orchestration
infrastructure. Get in contact if interested in helping having this in place.

  # dm
   1 alpine:3.4: Ok
   2 alpine:3.5: Ok
   3 alpine:edge: Ok
   4 android-ndk:r12b-arm: Ok
   5 archlinux:latest: Ok
   6 centos:5: Ok
   7 centos:6: Ok
   8 centos:7: Ok
   9 debian:7: Ok
  10 debian:8: Ok
  11 debian:9: Ok
  12 debian:experimental: Ok
  13 debian:experimental-x-arm64: Ok
  14 debian:experimental-x-mips: Ok
  15 debian:experimental-x-mips64: Ok
  16 debian:experimental-x-mipsel: Ok
  17 fedora:20: Ok
  18 fedora:21: Ok
  19 fedora:22: Ok
  20 fedora:23: Ok
  21 fedora:24: Ok
  22 fedora:24-x-ARC-uClibc: Ok
  23 fedora:25: Ok
  24 fedora:rawhide: Ok
  25 mageia:5: Ok
  26 opensuse:13.2: Ok
  27 opensuse:42.1: Ok
  28 opensuse:tumbleweed: Ok
  29 ubuntu:12.04.5: Ok
  30 ubuntu:14.04.4: Ok
  31 ubuntu:14.04.4-x-linaro-arm64: Ok
  32 ubuntu:15.10: Ok
  33 ubuntu:16.04: Ok
  34 ubuntu:16.04-x-arm: Ok
  35 ubuntu:16.04-x-arm64: Ok
  36 ubuntu:16.04-x-powerpc: Ok
  37 ubuntu:16.04-x-powerpc64: Ok
  38 ubuntu:16.04-x-s390: Ok
  39 ubuntu:16.10: Ok
  40 ubuntu:17.04: Ok

  # uname -a
  Linux jouet 4.11.0-rc6+ #7 SMP Tue Apr 11 11:53:14 -03 2017 x86_64 x86_64 x86_64 GNU/Linux
  # 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: Simple expression parser                   : Ok
   7: PERF_RECORD_* events & perf_sample fields  : Ok
   8: Parse perf pmu format                      : Ok
   9: DSO data read                              : Ok
  10: DSO data cache                             : Ok
  11: DSO data reopen                            : Ok
  12: Roundtrip evsel->name                      : Ok
  13: Parse sched tracepoints fields             : Ok
  14: syscalls:sys_enter_openat event fields     : Ok
  15: Setup struct perf_event_attr               : Ok
  16: Match and link multiple hists              : Ok
  17: 'import perf' in python                    : Ok
  18: Breakpoint overflow signal handler         : Ok
  19: Breakpoint overflow sampling               : Ok
  20: Number of exit events of a simple workload : Ok
  21: Software clock events period values        : Ok
  22: Object code reading                        : Ok
  23: Sample parsing                             : Ok
  24: Use a dummy software event to keep tracking: Ok
  25: Parse with no sample_id_all bit set        : Ok
  26: Filter hist entries                        : Ok
  27: Lookup mmap thread                         : Ok
  28: Share thread mg                            : Ok
  29: Sort output of hist entries                : Ok
  30: Cumulate child hist entries                : Ok
  31: Track with sched_switch                    : Ok
  32: Filter fds with revents mask in a fdarray  : Ok
  33: Add fd to a fdarray, making it autogrow    : Ok
  34: kmod_path__parse                           : Ok
  35: Thread map                                 : Ok
  36: LLVM search and compile                    :
  36.1: Basic BPF llvm compile                    : Ok
  36.2: kbuild searching                          : Ok
  36.3: Compile source for BPF prologue generation: Ok
  36.4: Compile source for BPF relocation         : Ok
  37: Session topology                           : Ok
  38: BPF filter                                 :
  38.1: Basic BPF filtering                      : Ok
  38.2: BPF pinning                              : Ok
  38.3: BPF prologue generation                  : Ok
  38.4: BPF relocation checker                   : Ok
  39: Synthesize thread map                      : Ok
  40: Remove 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
  46: Event times                                : Ok
  47: Read backward ring buffer                  : Ok
  48: Print cpu map                              : Ok
  49: Probe SDT events                           : Ok
  50: is_printable_array                         : Ok
  51: Print bitmap                               : Ok
  52: perf hooks                                 : Ok
  53: builtin clang support                      : Skip (not compiled in)
  54: unit_number__scnprintf                     : Ok
  55: x86 rdpmc                                  : Ok
  56: Convert perf time to TSC                   : Ok
  57: DWARF unwind                               : Ok
  58: x86 instruction decoder - new instructions : Ok
  59: Intel cqm nmi context read                 : Skip

  $ perf stat make -C tools/perf build-test
  make: Entering directory '/home/acme/git/linux/tools/perf'
  - tarpkg: ./tests/perf-targz-src-pkg .
                  make_no_ui_O: make NO_NEWT=1 NO_SLANG=1 NO_GTK2=1
  make_no_libdw_dwarf_unwind_O: make NO_LIBDW_DWARF_UNWIND=1
         make_with_clangllvm_O: make LIBCLANGLLVM=1
            make_install_bin_O: make install-bin
             make_util_map_o_O: make util/map.o
               make_no_slang_O: make NO_SLANG=1
              make_no_libbpf_O: make NO_LIBBPF=1
                  make_debug_O: make DEBUG=1
                make_no_newt_O: make NO_NEWT=1
              make_clean_all_O: make clean all
           make_no_backtrace_O: make NO_BACKTRACE=1
            make_no_demangle_O: make NO_DEMANGLE=1
                   make_pure_O: make
         make_install_prefix_O: make install prefix=/tmp/krava
            make_no_auxtrace_O: make NO_AUXTRACE=1
             make_no_libperl_O: make NO_LIBPERL=1
                    make_doc_O: make doc
        make_with_babeltrace_O: make LIBBABELTRACE=1
                 make_static_O: make LDFLAGS=-static
              make_no_libelf_O: make NO_LIBELF=1
             make_no_libnuma_O: make NO_LIBNUMA=1
       make_util_pmu_bison_o_O: make util/pmu-bison.o
           make_no_libunwind_O: make NO_LIBUNWIND=1
             make_no_scripts_O: make NO_LIBPYTHON=1 NO_LIBPERL=1
                   make_tags_O: make tags
                   make_help_O: make help
                make_install_O: make install
           make_no_libpython_O: make NO_LIBPYTHON=1
           make_no_libbionic_O: make NO_LIBBIONIC=1
   make_install_prefix_slash_O: make install prefix=/tmp/krava/
            make_no_libaudit_O: make NO_LIBAUDIT=1
                make_no_gtk2_O: make NO_GTK2=1
                 make_perf_o_O: make perf.o
  make: Leaving directory '/home/acme/git/linux/tools/perf'

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