perf error duringAutoFDO tutorial

[Nobutarou Nosuke]

Hi,

I am interested in AutoFDO and learing the following tutorial.

     https://gcc.gnu.org/wiki/AutoFDO/Tutorial

When I come to AutoFDO phase1, I meet the following error.

``
% ocperf.py record -b -e br_inst_retired.near_taken:pp -- ./sort
Downloading https://download.01.org/perfmon/mapfile.csv to mapfile.csv
Downloading https://download.01.org/perfmon/readme.txt to readme.txt
Do not recognize CPU or cannot find CPU map file.
perf record -b -e br_inst_retired.near_taken:pp -- ./sort
event syntax error: '...near_taken:pp'
                                  \___ parser error
Run 'perf list' for a list of valid events

 Usage: perf record [<options>] [<command>]
    or: perf record [<options>] -- <command> [<options>]

    -e, --event <event>   event selector. use 'perf list' to list
available events
``

According to the above message, I run 'perf list',but I cannot see
br_blabla in the list.
``
  branch-instructions OR branches                    [Hardware event]
  branch-misses                                      [Hardware event]
  cache-misses                                       [Hardware event]
  cache-references                                   [Hardware event]
  cpu-cycles OR cycles                               [Hardware event]
  instructions                                       [Hardware event]
  stalled-cycles-backend OR idle-cycles-backend      [Hardware event]
  stalled-cycles-frontend OR idle-cycles-frontend    [Hardware event]
  alignment-faults                                   [Software event]
  bpf-output                                         [Software event]
  context-switches OR cs                             [Software event]
  cpu-clock                                          [Software event]
  cpu-migrations OR migrations                       [Software event]
  dummy                                              [Software event]
  emulation-faults                                   [Software event]
  major-faults                                       [Software event]
  minor-faults                                       [Software event]
  page-faults OR faults                              [Software event]
  task-clock                                         [Software event]
  L1-dcache-load-misses                              [Hardware cache event]
  L1-dcache-loads                                    [Hardware cache event]
  L1-dcache-prefetch-misses                          [Hardware cache event]
  L1-dcache-prefetches                               [Hardware cache event]
  L1-icache-load-misses                              [Hardware cache event]
  L1-icache-loads                                    [Hardware cache event]
  L1-icache-prefetches                               [Hardware cache event]
  LLC-load-misses                                    [Hardware cache event]
  LLC-loads                                          [Hardware cache event]
  LLC-stores                                         [Hardware cache event]
  branch-load-misses                                 [Hardware cache event]
  branch-loads                                       [Hardware cache event]
  dTLB-load-misses                                   [Hardware cache event]
  dTLB-loads                                         [Hardware cache event]
  iTLB-load-misses                                   [Hardware cache event]
  iTLB-loads                                         [Hardware cache event]
  node-load-misses                                   [Hardware cache event]
  node-loads                                         [Hardware cache event]
  branch-instructions OR cpu/branch-instructions/    [Kernel PMU event]
  branch-misses OR cpu/branch-misses/                [Kernel PMU event]
  cache-misses OR cpu/cache-misses/                  [Kernel PMU event]
  cache-references OR cpu/cache-references/          [Kernel PMU event]
  cpu-cycles OR cpu/cpu-cycles/                      [Kernel PMU event]
  instructions OR cpu/instructions/                  [Kernel PMU event]
  msr/aperf/                                         [Kernel PMU event]
  msr/mperf/                                         [Kernel PMU event]
  msr/ptsc/                                          [Kernel PMU event]
  msr/tsc/                                           [Kernel PMU event]
  stalled-cycles-backend OR cpu/stalled-cycles-backend/ [Kernel PMU event]
  stalled-cycles-frontend OR cpu/stalled-cycles-frontend/ [Kernel PMU event]
  rNNN                                               [Raw hardware
event descriptor]
  cpu/t1=v1[,t2=v2,t3 ...]/modifier                  [Raw hardware
event descriptor]
  mem:<addr>[/len][:access]                          [Hardware breakpoint]
``

I doubt,

- the event name is something old?
- I miss something in kernel .config file to catch the event?


I am testing it with Linux-4.7.2 and GCC-7-20170525.

Regards,
Nobutarou