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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123#!/bin/bash# perf stat STD output linter# SPDX-License-Identifier: GPL-2.0# Tests various perf stat STD output commands for# default event and metricgroup
set -e
# shellcheck source=lib/stat_output.sh. "$(dirname $0)"/lib/stat_output.sh
stat_output=$(mktemp /tmp/__perf_test.stat_output.std.XXXXX)
event_name=(cpu-clock task-clock context-switches cpu-migrations page-faults stalled-cycles-frontend stalled-cycles-backend cycles instructions branches branch-misses)event_metric=("CPUs_utilized" "CPUs_utilized" "cs/sec" "migrations/sec" "faults/sec" "frontend_cycles_idle" "backend_cycles_idle" "GHz" "insn_per_cycle" "/sec" "branch_miss_rate")skip_metric=("tma_" "TopdownL1")
cleanup() { rm -f "${stat_output}"
trap - EXIT TERM INT}
trap_cleanup() { cleanup exit 1}trap trap_cleanup EXIT TERM INT
function commachecker(){ local prefix=1 local -i metric_only=0
case "$1" in "--interval") prefix=2 ;; "--per-thread") prefix=2 ;; "--system-wide-no-aggr") prefix=2 ;; "--per-core") prefix=3 ;; "--per-socket") prefix=3 ;; "--per-node") prefix=3 ;; "--per-die") prefix=3 ;; "--per-cache") prefix=3 ;; "--per-cluster") prefix=3 ;; "--metric-only") metric_only=1 esac
while read line do # Ignore initial "started on" comment. x=${line:0:1} [ "$x" = "#" ] && continue # Ignore initial blank line. [ "$line" = "" ] && continue # Ignore "Performance counter stats" x=${line:0:25} [ "$x" = "Performance counter stats" ] && continue # Ignore "seconds time elapsed" and break [[ "$line" == *"time elapsed"* ]] && break
main_body=$(echo $line | cut -d' ' -f$prefix-) x=${main_body%#*} [ "$x" = "" ] && continue
# Check metric only - if it has a non-empty result [ $metric_only -eq 1 ] && return 0
# Skip metrics without event name y=${main_body#*#} for i in "${!skip_metric[@]}"; do [[ "$y" == *"${skip_metric[$i]}"* ]] && break done [[ "$y" == *"${skip_metric[$i]}"* ]] && continue
# Check default event for i in "${!event_name[@]}"; do [[ "$x" == *"${event_name[$i]}"* ]] && break done
[[ ! "$x" == *"${event_name[$i]}"* ]] && { echo "Unknown event name in $line" 1>&2 exit 1; }
# Check event metric if it exists [[ ! "$main_body" == *"#"* ]] && continue [[ ! "$main_body" == *"${event_metric[$i]}"* ]] && { echo "wrong event metric. expected ${event_metric[$i]} in $line" 1>&2 exit 1; } done < "${stat_output}"
if [ $metric_only -ne 1 ] then echo "Missing metric only output in:" cat "${stat_output}" fi return 0}
perf_cmd="-o ${stat_output}"
skip_test=$(check_for_topology)check_no_args "STD" "$perf_cmd"check_system_wide "STD" "$perf_cmd"check_interval "STD" "$perf_cmd"check_per_thread "STD" "$perf_cmd"check_per_node "STD" "$perf_cmd"check_metric_only "STD" "$perf_cmd"if [ $skip_test -ne 1 ]then check_system_wide_no_aggr "STD" "$perf_cmd" check_per_core "STD" "$perf_cmd" check_per_cache_instance "STD" "$perf_cmd" check_per_cluster "STD" "$perf_cmd" check_per_die "STD" "$perf_cmd" check_per_socket "STD" "$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"ficleanupexit 0