cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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stat+csv_output.sh (3382B)

      1#!/bin/bash
      2# perf stat CSV output linter
      3# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
      4# Tests various perf stat CSV output commands for the
      5# correct number of fields and the CSV separator set to ','.
      6
      7set -e
      8
      9function commachecker()
     10{
     11	local -i cnt=0 exp=0
     12
     13	case "$1"
     14	in "--no-args")		exp=6
     15	;; "--system-wide")	exp=6
     16	;; "--event")		exp=6
     17	;; "--interval")	exp=7
     18	;; "--per-thread")	exp=7
     19	;; "--system-wide-no-aggr")	exp=7
     20				[ $(uname -m) = "s390x" ] && exp=6
     21	;; "--per-core")	exp=8
     22	;; "--per-socket")	exp=8
     23	;; "--per-node")	exp=8
     24	;; "--per-die")		exp=8
     25	esac
     26
     27	while read line
     28	do
     29		# Check for lines beginning with Failed
     30		x=${line:0:6}
     31		[ "$x" = "Failed" ] && continue
     32
     33		# Count the number of commas
     34		x=$(echo $line | tr -d -c ',')
     35		cnt="${#x}"
     36		# echo $line $cnt
     37		[ "$cnt" -ne "$exp" ] && {
     38			echo "wrong number of fields. expected $exp in $line" 1>&2
     39			exit 1;
     40		}
     41	done
     42	return 0
     43}
     44
     45# Return true if perf_event_paranoid is > $1 and not running as root.
     46function ParanoidAndNotRoot()
     47{
     48	 [ $(id -u) != 0 ] && [ $(cat /proc/sys/kernel/perf_event_paranoid) -gt $1 ]
     49}
     50
     51check_no_args()
     52{
     53	echo -n "Checking CSV output: no args "
     54	perf stat -x, true 2>&1 | commachecker --no-args
     55	echo "[Success]"
     56}
     57
     58check_system_wide()
     59{
     60	echo -n "Checking CSV output: system wide "
     61	if ParanoidAndNotRoot 0
     62	then
     63		echo "[Skip] paranoid and not root"
     64		return
     65	fi
     66	perf stat -x, -a true 2>&1 | commachecker --system-wide
     67	echo "[Success]"
     68}
     69
     70check_system_wide_no_aggr()
     71{
     72	echo -n "Checking CSV output: system wide "
     73	if ParanoidAndNotRoot 0
     74	then
     75		echo "[Skip] paranoid and not root"
     76		return
     77	fi
     78	echo -n "Checking CSV output: system wide no aggregation "
     79	perf stat -x, -A -a --no-merge true 2>&1 | commachecker --system-wide-no-aggr
     80	echo "[Success]"
     81}
     82
     83check_interval()
     84{
     85	echo -n "Checking CSV output: interval "
     86	perf stat -x, -I 1000 true 2>&1 | commachecker --interval
     87	echo "[Success]"
     88}
     89
     90
     91check_event()
     92{
     93	echo -n "Checking CSV output: event "
     94	perf stat -x, -e cpu-clock true 2>&1 | commachecker --event
     95	echo "[Success]"
     96}
     97
     98check_per_core()
     99{
    100	echo -n "Checking CSV output: per core "
    101	if ParanoidAndNotRoot 0
    102	then
    103		echo "[Skip] paranoid and not root"
    104		return
    105	fi
    106	perf stat -x, --per-core -a true 2>&1 | commachecker --per-core
    107	echo "[Success]"
    108}
    109
    110check_per_thread()
    111{
    112	echo -n "Checking CSV output: per thread "
    113	if ParanoidAndNotRoot 0
    114	then
    115		echo "[Skip] paranoid and not root"
    116		return
    117	fi
    118	perf stat -x, --per-thread -a true 2>&1 | commachecker --per-thread
    119	echo "[Success]"
    120}
    121
    122check_per_die()
    123{
    124	echo -n "Checking CSV output: per die "
    125	if ParanoidAndNotRoot 0
    126	then
    127		echo "[Skip] paranoid and not root"
    128		return
    129	fi
    130	perf stat -x, --per-die -a true 2>&1 | commachecker --per-die
    131	echo "[Success]"
    132}
    133
    134check_per_node()
    135{
    136	echo -n "Checking CSV output: per node "
    137	if ParanoidAndNotRoot 0
    138	then
    139		echo "[Skip] paranoid and not root"
    140		return
    141	fi
    142	perf stat -x, --per-node -a true 2>&1 | commachecker --per-node
    143	echo "[Success]"
    144}
    145
    146check_per_socket()
    147{
    148	echo -n "Checking CSV output: per socket "
    149	if ParanoidAndNotRoot 0
    150	then
    151		echo "[Skip] paranoid and not root"
    152		return
    153	fi
    154	perf stat -x, --per-socket -a true 2>&1 | commachecker --per-socket
    155	echo "[Success]"
    156}
    157
    158check_no_args
    159check_system_wide
    160check_system_wide_no_aggr
    161check_interval
    162check_event
    163check_per_core
    164check_per_thread
    165check_per_die
    166check_per_node
    167check_per_socket
    168exit 0