• Yicong Yang's avatar
    perf test: Skip metric w/o event name on arm64 in stat STD output linter · 5f70c6c5
    Yicong Yang authored
    stat+std_output.sh test fails on my arm64 machine:
    [root@localhost shell]# ./stat+std_output.sh
    Checking STD output: no args Unknown event name in TopDownL1                 #     0.18 retiring
    [root@localhost shell]# ./stat+std_output.sh
    Checking STD output: no args [Success]
    Checking STD output: system wide [Success]
    Checking STD output: interval [Success]
    Checking STD output: per thread Unknown event name in tmux: server-1114960                                                   #     0.41 frontend_bound
    
    When no args specified `perf stat` will add TopdownL1 metric group
    and the output will be like:
    [root@localhost shell]# perf stat -- stress-ng --vm 1 --timeout 1
    stress-ng: info:  [3351733] setting to a 1 second run per stressor
    stress-ng: info:  [3351733] dispatching hogs: 1 vm
    stress-ng: info:  [3351733] successful run completed in 1.02s
    
     Performance counter stats for 'stress-ng --vm 1 --timeout 1':
    
              1,037.71 msec task-clock                       #    1.000 CPUs utilized
                    13      context-switches                 #   12.528 /sec
                     1      cpu-migrations                   #    0.964 /sec
                67,544      page-faults                      #   65.090 K/sec
         2,691,932,561      cycles                           #    2.594 GHz                         (74.56%)
         6,571,333,653      instructions                     #    2.44  insn per cycle              (74.92%)
           521,863,142      branches                         #  502.901 M/sec                       (75.21%)
               425,879      branch-misses                    #    0.08% of all branches             (87.57%)
                            TopDownL1                 #     0.61 retiring                    (87.67%)
                                                      #     0.03 frontend_bound              (87.67%)
                                                      #     0.02 bad_speculation             (87.67%)
                                                      #     0.34 backend_bound               (74.61%)
    
           1.038138390 seconds time elapsed
    
           0.844849000 seconds user
           0.189053000 seconds sys
    
    Metrics in group TopDownL1 don't have event name on arm64 but are not
    listed in the $skip_metric list which they should be listed. Add them
    to the skip list as what does for x86 platforms in [1].
    
    [1] commit 4d60e83d ("perf test: Skip metrics w/o event name in stat STD output linter")
    Signed-off-by: default avatarYicong Yang <yangyicong@hisilicon.com>
    Reviewed-by: default avatarIan Rogers <irogers@google.com>
    Cc: linuxarm@huawei.com
    Cc: kan.liang@linux.intel.com
    Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
    Link: https://lore.kernel.org/r/20240207091222.54096-1-yangyicong@huawei.com
    5f70c6c5
stat+std_output.sh 2.86 KB