Re: [PATCH v3] perf test: Add skip to --per-thread test

[Arnaldo Carvalho de Melo <acme@kernel.org>]

Em Thu, May 05, 2022 at 11:25:05AM -0700, Ian Rogers escreveu:
> As reported in:
> https://lore.kernel.org/linux-perf-users/20220428122821.3652015-1-tmricht@linux.ibm.com/
> the 'instructions:u' event may not be supported. Add a skip using 'perf
> record'.
> 
> Switch some code away from pipe to make the failures clearer.

Thanks, applied.

- Arnaldo

 
> Reported-by: Thomas Richter <tmricht@linux.ibm.com>
> Tested-by: Thomas Richter <tmricht@linux.ibm.com>
> Signed-off-by: Ian Rogers <irogers@google.com>
> ---
>  tools/perf/tests/shell/record.sh | 46 ++++++++++++++++++++++++++++----
>  1 file changed, 41 insertions(+), 5 deletions(-)
> 
> diff --git a/tools/perf/tests/shell/record.sh b/tools/perf/tests/shell/record.sh
> index d98f4d4a00e1..00c7285ce1ac 100755
> --- a/tools/perf/tests/shell/record.sh
> +++ b/tools/perf/tests/shell/record.sh
> @@ -5,11 +5,43 @@
>  set -e
>  
>  err=0
> +perfdata=$(mktemp /tmp/__perf_test.perf.data.XXXXX)
> +
> +cleanup() {
> +  rm -f ${perfdata}
> +  rm -f ${perfdata}.old
> +  trap - exit term int
> +}
> +
> +trap_cleanup() {
> +  cleanup
> +  exit 1
> +}
> +trap trap_cleanup exit term int
> +
>  test_per_thread() {
>    echo "Basic --per-thread mode test"
> -  perf record -e instructions:u --per-thread -o- true 2> /dev/null \
> -    | perf report -i- -q \
> -    | egrep -q true
> +  if ! perf record -e instructions:u -o ${perfdata} --quiet true 2> /dev/null
> +  then
> +    echo "Per-thread record [Skipped instructions:u not supported]"
> +    if [ $err -ne 1 ]
> +    then
> +      err=2
> +    fi
> +    return
> +  fi
> +  if ! perf record -e instructions:u --per-thread -o ${perfdata} true 2> /dev/null
> +  then
> +    echo "Per-thread record of instructions:u [Failed]"
> +    err=1
> +    return
> +  fi
> +  if ! perf report -i ${perfdata} -q | egrep -q true
> +  then
> +    echo "Per-thread record [Failed missing output]"
> +    err=1
> +    return
> +  fi
>    echo "Basic --per-thread mode test [Success]"
>  }
>  
> @@ -18,6 +50,10 @@ test_register_capture() {
>    if ! perf list | egrep -q 'br_inst_retired.near_call'
>    then
>      echo "Register capture test [Skipped missing instruction]"
> +    if [ $err -ne 1 ]
> +    then
> +      err=2
> +    fi
>      return
>    fi
>    if ! perf record --intr-regs=\? 2>&1 | egrep -q 'available registers: AX BX CX DX SI DI BP SP IP FLAGS CS SS R8 R9 R10 R11 R12 R13 R14 R15'
> @@ -37,8 +73,8 @@ test_register_capture() {
>    echo "Register capture test [Success]"
>  }
>  
> -# Test for platform support and return TEST_SKIP
> -[ $(uname -m) = s390x ] && exit 2
>  test_per_thread
>  test_register_capture
> +
> +cleanup
>  exit $err
> -- 
> 2.36.0.512.ge40c2bad7a-goog

-- 

- Arnaldo