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Date: Wed, 14 Jun 2023 22:59:44 -0700
From: Ian Rogers <irogers@...gle.com>
To: kan.liang@...ux.intel.com
Cc: acme@...nel.org, mingo@...hat.com, peterz@...radead.org,
namhyung@...nel.org, jolsa@...nel.org, adrian.hunter@...el.com,
linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
ak@...ux.intel.com, eranian@...gle.com, ahmad.yasin@...el.com
Subject: Re: [PATCH V2 7/8] perf test: Move all the check functions of stat
csv output to lib
On Wed, Jun 14, 2023 at 5:18 PM <kan.liang@...ux.intel.com> wrote:
>
> From: Kan Liang <kan.liang@...ux.intel.com>
>
> These functions can be shared with the stat std output test.
>
> There is no functional change.
>
> Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
Reviewed-by: Ian Rogers <irogers@...gle.com>
Thanks,
Ian
> ---
> tools/perf/tests/shell/lib/stat_output.sh | 169 +++++++++++++++++++
> tools/perf/tests/shell/stat+csv_output.sh | 188 ++--------------------
> 2 files changed, 184 insertions(+), 173 deletions(-)
> create mode 100755 tools/perf/tests/shell/lib/stat_output.sh
>
> diff --git a/tools/perf/tests/shell/lib/stat_output.sh b/tools/perf/tests/shell/lib/stat_output.sh
> new file mode 100755
> index 000000000000..363979b1123d
> --- /dev/null
> +++ b/tools/perf/tests/shell/lib/stat_output.sh
> @@ -0,0 +1,169 @@
> +# SPDX-License-Identifier: GPL-2.0
> +
> +# Return true if perf_event_paranoid is > $1 and not running as root.
> +function ParanoidAndNotRoot()
> +{
> + [ "$(id -u)" != 0 ] && [ "$(cat /proc/sys/kernel/perf_event_paranoid)" -gt $1 ]
> +}
> +
> +# $1 name $2 extra_opt
> +check_no_args()
> +{
> + echo -n "Checking $1 output: no args"
> + perf stat $2 true
> + commachecker --no-args
> + echo "[Success]"
> +}
> +
> +check_system_wide()
> +{
> + echo -n "Checking $1 output: system wide "
> + if ParanoidAndNotRoot 0
> + then
> + echo "[Skip] paranoid and not root"
> + return
> + fi
> + perf stat -a $2 true
> + commachecker --system-wide
> + echo "[Success]"
> +}
> +
> +check_system_wide_no_aggr()
> +{
> + echo -n "Checking $1 output: system wide no aggregation "
> + if ParanoidAndNotRoot 0
> + then
> + echo "[Skip] paranoid and not root"
> + return
> + fi
> + perf stat -A -a --no-merge $2 true
> + commachecker --system-wide-no-aggr
> + echo "[Success]"
> +}
> +
> +check_interval()
> +{
> + echo -n "Checking $1 output: interval "
> + perf stat -I 1000 $2 true
> + commachecker --interval
> + echo "[Success]"
> +}
> +
> +check_event()
> +{
> + echo -n "Checking $1 output: event "
> + perf stat -e cpu-clock $2 true
> + commachecker --event
> + echo "[Success]"
> +}
> +
> +check_per_core()
> +{
> + echo -n "Checking $1 output: per core "
> + if ParanoidAndNotRoot 0
> + then
> + echo "[Skip] paranoid and not root"
> + return
> + fi
> + perf stat --per-core -a $2 true
> + commachecker --per-core
> + echo "[Success]"
> +}
> +
> +check_per_thread()
> +{
> + echo -n "Checking $1 output: per thread "
> + if ParanoidAndNotRoot 0
> + then
> + echo "[Skip] paranoid and not root"
> + return
> + fi
> + perf stat --per-thread -a $2 true
> + commachecker --per-thread
> + echo "[Success]"
> +}
> +
> +check_per_cache_instance()
> +{
> + echo -n "Checking $1 output: per cache instance "
> + if ParanoidAndNotRoot 0
> + then
> + echo "[Skip] paranoid and not root"
> + return
> + fi
> + perf stat --per-cache -a $2 true
> + commachecker --per-cache
> + echo "[Success]"
> +}
> +
> +check_per_die()
> +{
> + echo -n "Checking $1 output: per die "
> + if ParanoidAndNotRoot 0
> + then
> + echo "[Skip] paranoid and not root"
> + return
> + fi
> + perf stat --per-die -a $2 true
> + commachecker --per-die
> + echo "[Success]"
> +}
> +
> +check_per_node()
> +{
> + echo -n "Checking $1 output: per node "
> + if ParanoidAndNotRoot 0
> + then
> + echo "[Skip] paranoid and not root"
> + return
> + fi
> + perf stat --per-node -a $2 true
> + commachecker --per-node
> + echo "[Success]"
> +}
> +
> +check_per_socket()
> +{
> + echo -n "Checking $1 output: per socket "
> + if ParanoidAndNotRoot 0
> + then
> + echo "[Skip] paranoid and not root"
> + return
> + fi
> + perf stat --per-socket -a $2 true
> + commachecker --per-socket
> + echo "[Success]"
> +}
> +
> +# The perf stat options for per-socket, per-core, per-die
> +# and -A ( no_aggr mode ) uses the info fetched from this
> +# directory: "/sys/devices/system/cpu/cpu*/topology". For
> +# example, socket value is fetched from "physical_package_id"
> +# file in topology directory.
> +# Reference: cpu__get_topology_int in util/cpumap.c
> +# If the platform doesn't expose topology information, values
> +# will be set to -1. For example, incase of pSeries platform
> +# of powerpc, value for "physical_package_id" is restricted
> +# and set to -1. Check here validates the socket-id read from
> +# topology file before proceeding further
> +
> +FILE_LOC="/sys/devices/system/cpu/cpu*/topology/"
> +FILE_NAME="physical_package_id"
> +
> +function check_for_topology()
> +{
> + if ! ParanoidAndNotRoot 0
> + then
> + socket_file=`ls $FILE_LOC/$FILE_NAME | head -n 1`
> + [ -z $socket_file ] && {
> + echo 0
> + return
> + }
> + socket_id=`cat $socket_file`
> + [ $socket_id == -1 ] && {
> + echo 1
> + return
> + }
> + fi
> + echo 0
> +}
> diff --git a/tools/perf/tests/shell/stat+csv_output.sh b/tools/perf/tests/shell/stat+csv_output.sh
> index ed082daf839c..34a0701fee05 100755
> --- a/tools/perf/tests/shell/stat+csv_output.sh
> +++ b/tools/perf/tests/shell/stat+csv_output.sh
> @@ -6,7 +6,8 @@
>
> set -e
>
> -skip_test=0
> +. $(dirname $0)/lib/stat_output.sh
> +
> csv_sep=@
>
> stat_output=$(mktemp /tmp/__perf_test.stat_output.csv.XXXXX)
> @@ -63,181 +64,22 @@ function commachecker()
> return 0
> }
>
> -# Return true if perf_event_paranoid is > $1 and not running as root.
> -function ParanoidAndNotRoot()
> -{
> - [ "$(id -u)" != 0 ] && [ "$(cat /proc/sys/kernel/perf_event_paranoid)" -gt $1 ]
> -}
> -
> -check_no_args()
> -{
> - echo -n "Checking CSV output: no args "
> - perf stat -x$csv_sep -o "${stat_output}" true
> - commachecker --no-args
> - echo "[Success]"
> -}
> -
> -check_system_wide()
> -{
> - echo -n "Checking CSV output: system wide "
> - if ParanoidAndNotRoot 0
> - then
> - echo "[Skip] paranoid and not root"
> - return
> - fi
> - perf stat -x$csv_sep -a -o "${stat_output}" true
> - commachecker --system-wide
> - echo "[Success]"
> -}
> -
> -check_system_wide_no_aggr()
> -{
> - echo -n "Checking CSV output: system wide no aggregation "
> - if ParanoidAndNotRoot 0
> - then
> - echo "[Skip] paranoid and not root"
> - return
> - fi
> - perf stat -x$csv_sep -A -a --no-merge -o "${stat_output}" true
> - commachecker --system-wide-no-aggr
> - echo "[Success]"
> -}
> -
> -check_interval()
> -{
> - echo -n "Checking CSV output: interval "
> - perf stat -x$csv_sep -I 1000 -o "${stat_output}" true
> - commachecker --interval
> - echo "[Success]"
> -}
> -
> -
> -check_event()
> -{
> - echo -n "Checking CSV output: event "
> - perf stat -x$csv_sep -e cpu-clock -o "${stat_output}" true
> - commachecker --event
> - echo "[Success]"
> -}
> -
> -check_per_core()
> -{
> - echo -n "Checking CSV output: per core "
> - if ParanoidAndNotRoot 0
> - then
> - echo "[Skip] paranoid and not root"
> - return
> - fi
> - perf stat -x$csv_sep --per-core -a -o "${stat_output}" true
> - commachecker --per-core
> - echo "[Success]"
> -}
> -
> -check_per_thread()
> -{
> - echo -n "Checking CSV output: per thread "
> - if ParanoidAndNotRoot 0
> - then
> - echo "[Skip] paranoid and not root"
> - return
> - fi
> - perf stat -x$csv_sep --per-thread -a -o "${stat_output}" true
> - commachecker --per-thread
> - echo "[Success]"
> -}
> -
> -check_per_cache_instance()
> -{
> - echo -n "Checking CSV output: per cache instance "
> - if ParanoidAndNotRoot 0
> - then
> - echo "[Skip] paranoid and not root"
> - return
> - fi
> - perf stat -x$csv_sep --per-cache -a true 2>&1 | commachecker --per-cache
> - echo "[Success]"
> -}
> -
> -check_per_die()
> -{
> - echo -n "Checking CSV output: per die "
> - if ParanoidAndNotRoot 0
> - then
> - echo "[Skip] paranoid and not root"
> - return
> - fi
> - perf stat -x$csv_sep --per-die -a -o "${stat_output}" true
> - commachecker --per-die
> - echo "[Success]"
> -}
> -
> -check_per_node()
> -{
> - echo -n "Checking CSV output: per node "
> - if ParanoidAndNotRoot 0
> - then
> - echo "[Skip] paranoid and not root"
> - return
> - fi
> - perf stat -x$csv_sep --per-node -a -o "${stat_output}" true
> - commachecker --per-node
> - echo "[Success]"
> -}
> -
> -check_per_socket()
> -{
> - echo -n "Checking CSV output: per socket "
> - if ParanoidAndNotRoot 0
> - then
> - echo "[Skip] paranoid and not root"
> - return
> - fi
> - perf stat -x$csv_sep --per-socket -a -o "${stat_output}" true
> - commachecker --per-socket
> - echo "[Success]"
> -}
> -
> -# The perf stat options for per-socket, per-core, per-die
> -# and -A ( no_aggr mode ) uses the info fetched from this
> -# directory: "/sys/devices/system/cpu/cpu*/topology". For
> -# example, socket value is fetched from "physical_package_id"
> -# file in topology directory.
> -# Reference: cpu__get_topology_int in util/cpumap.c
> -# If the platform doesn't expose topology information, values
> -# will be set to -1. For example, incase of pSeries platform
> -# of powerpc, value for "physical_package_id" is restricted
> -# and set to -1. Check here validates the socket-id read from
> -# topology file before proceeding further
> -
> -FILE_LOC="/sys/devices/system/cpu/cpu*/topology/"
> -FILE_NAME="physical_package_id"
> -
> -check_for_topology()
> -{
> - if ! ParanoidAndNotRoot 0
> - then
> - socket_file=`ls $FILE_LOC/$FILE_NAME | head -n 1`
> - [ -z $socket_file ] && return 0
> - socket_id=`cat $socket_file`
> - [ $socket_id == -1 ] && skip_test=1
> - return 0
> - fi
> -}
> +perf_cmd="-x$csv_sep -o ${stat_output}"
>
> -check_for_topology
> -check_no_args
> -check_system_wide
> -check_interval
> -check_event
> -check_per_thread
> -check_per_node
> +skip_test=$(check_for_topology)
> +check_no_args "CSV" "$perf_cmd"
> +check_system_wide "CSV" "$perf_cmd"
> +check_interval "CSV" "$perf_cmd"
> +check_event "CSV" "$perf_cmd"
> +check_per_thread "CSV" "$perf_cmd"
> +check_per_node "CSV" "$perf_cmd"
> if [ $skip_test -ne 1 ]
> then
> - check_system_wide_no_aggr
> - check_per_core
> - check_per_cache_instance
> - check_per_die
> - check_per_socket
> + check_system_wide_no_aggr "CSV" "$perf_cmd"
> + check_per_core "CSV" "$perf_cmd"
> + check_per_cache_instance "CSV" "$perf_cmd"
> + check_per_die "CSV" "$perf_cmd"
> + check_per_socket "CSV" "$perf_cmd"
> else
> echo "[Skip] Skipping tests for system_wide_no_aggr, per_core, per_die and per_socket since socket id exposed via topology is invalid"
> fi
> --
> 2.35.1
>
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