perf test: add new task-analyzer tests

Provide task-analyzer test cases for all possible arguments and a subset of possible
combinations.

12 Tests in total.

test_basic:
- cmd:"perf script report task-analyzer"
- Fundamental test of script without arguments.
- Check for standard output.

test_ns_rename:
- cmd:"perf script report task-analyzer --ns --rename-comms-by-tids 0:random"
- Standard task with timestamps in nanoseconds and comm renamed.
- Check for standard output.

test_ms_filtertasks_highlight:
- cmd:"perf script report task-analyzer --ms --filter-tasks perf --highlight-tasks perf"
- Standard task with timestamps in milliseconds, task filtered out and highlighted.
- Check for standard output.

test_extended_times_timelimit_limittasks:
- cmd "perf script report task-analyzer --extended-times --time-limit :99999"
- Standard task with additional schedule out/in info and timlimit active at 99999.
- Check for extended table output.

test_summary:
- cmd:"perf script report task-analyzer --summary"
- Standard task with additional summary output.
- Check for summary print.

test_summary_extended:
- cmd:"perf script report task-analyzer --summary-extended"
- Standard task with summary and additional schedule in/out info.
- Chceck for extended table print.

test_summaryonly:
- cmd:"perf script report task-analyzer --summary-only"
- Only summary should be printed.
- Check for summary print.

test_extended_times_summary_ns:
- cmd:"perf script report task-analyzer --extended-times --summary --ns"
- Standard task with extended schedule in/out information and summary in ns.
- Check for extended table and summary.

test_csv:
- cmd:"perf script report task-analyzer --csv csv"
- Print standard task to csv file in csv format.
- Check for csv format.

test_csv_extended_times:
- cmd:"perf script report task-analyzer --csv csv --extended-times"
- Print standard task to csv file in csv format with additional schedule in/out
information.
- Check for additional information and csv format.

test_csvsummary:
- cmd:"perf script report task-analyzer --csv-summary csvsummary"
- Print summary to csvsummary file in csv format.
- Check for csv format.

test_csvsummary_extended:
- cmd:"perf script report task-analyzer --csv-summary csvsummary --summary-extended"
- Print summary to csvsummary file in csv format with additional schedule in/out
information.
- Check for additional information and csv format.

Suggested-by: Ian Rogers <[e-mail]>
Signed-off-by: Petar Gligoric <[e-mail]>
Cc: Andi Kleen <[e-mail]>
Cc: Ian Rogers <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Hagen Paul Pfeifer <[e-mail]>
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/tests/shell/test_task_analyzer.sh

···
+#!/bin/bash
+# perf script task-analyzer tests
+# SPDX-License-Identifier: GPL-2.0
+
+tmpdir=$(mktemp -d /tmp/perf-script-task-analyzer-XXXXX)
+err=0
+
+cleanup() {
+  rm -f perf.data
+  rm -f perf.data.old
+  rm -f csv
+  rm -f csvsummary
+  rm -rf $tmpdir
+  trap - exit term int
+}
+
+trap_cleanup() {
+  cleanup
+  exit 1
+}
+trap trap_cleanup exit term int
+
+report() {
+	if [ $1 = 0 ]; then
+		echo "PASS: \"$2\""
+	else
+		echo "FAIL: \"$2\" Error message: \"$3\""
+		err=1
+	fi
+}
+
+check_exec_0() {
+	if [ $? != 0 ]; then
+		report 1 "invokation of ${$1} command failed"
+	fi
+}
+
+find_str_or_fail() {
+	grep -q "$1" $2
+	if [ $? != 0 ]; then
+		report 1 $3 "Failed to find required string:'${1}'."
+	else
+		report 0 $3
+	fi
+}
+
+prepare_perf_data() {
+	# 1s should be sufficient to catch at least some switches
+	perf record -e sched:sched_switch -a -- sleep 1 > /dev/null 2>&1
+}
+
+# check standard inkvokation with no arguments
+test_basic() {
+	out="$tmpdir/perf.out"
+	perf script report task-analyzer > $out
+	check_exec_0 "perf"
+	find_str_or_fail "Comm" $out ${FUNCNAME[0]}
+}
+
+test_ns_rename(){
+	out="$tmpdir/perf.out"
+	perf script report task-analyzer --ns --rename-comms-by-tids 0:random > $out
+	check_exec_0 "perf"
+	find_str_or_fail "Comm" $out ${FUNCNAME[0]}
+}
+
+test_ms_filtertasks_highlight(){
+	out="$tmpdir/perf.out"
+	perf script report task-analyzer --ms --filter-tasks perf --highlight-tasks perf \
+	> $out
+	check_exec_0 "perf"
+	find_str_or_fail "Comm" $out ${FUNCNAME[0]}
+}
+
+test_extended_times_timelimit_limittasks() {
+	out="$tmpdir/perf.out"
+	perf script report task-analyzer --extended-times --time-limit :99999 \
+	--limit-to-tasks perf > $out
+	check_exec_0 "perf"
+	find_str_or_fail "Out-Out" $out ${FUNCNAME[0]}
+}
+
+test_summary() {
+	out="$tmpdir/perf.out"
+	perf script report task-analyzer --summary > $out
+	check_exec_0 "perf"
+	find_str_or_fail "Summary" $out ${FUNCNAME[0]}
+}
+
+test_summaryextended() {
+	out="$tmpdir/perf.out"
+	perf script report task-analyzer --summary-extended > $out
+	check_exec_0 "perf"
+	find_str_or_fail "Inter Task Times" $out ${FUNCNAME[0]}
+}
+
+test_summaryonly() {
+	out="$tmpdir/perf.out"
+	perf script report task-analyzer --summary-only > $out
+	check_exec_0 "perf"
+	find_str_or_fail "Summary" $out ${FUNCNAME[0]}
+}
+
+test_extended_times_summary_ns() {
+	out="$tmpdir/perf.out"
+	perf script report task-analyzer --extended-times --summary --ns > $out
+	check_exec_0 "perf"
+	find_str_or_fail "Out-Out" $out ${FUNCNAME[0]}
+	find_str_or_fail "Summary" $out ${FUNCNAME[0]}
+}
+
+test_csv() {
+	perf script report task-analyzer --csv csv > /dev/null
+	check_exec_0 "perf"
+	find_str_or_fail "Comm;" csv ${FUNCNAME[0]}
+}
+
+test_csv_extended_times() {
+	perf script report task-analyzer --csv csv --extended-times > /dev/null
+	check_exec_0 "perf"
+	find_str_or_fail "Out-Out;" csv ${FUNCNAME[0]}
+}
+
+test_csvsummary() {
+	perf script report task-analyzer --csv-summary csvsummary > /dev/null
+	check_exec_0 "perf"
+	find_str_or_fail "Comm;" csvsummary ${FUNCNAME[0]}
+}
+
+test_csvsummary_extended() {
+	perf script report task-analyzer --csv-summary csvsummary --summary-extended \
+	>/dev/null
+	check_exec_0 "perf"
+	find_str_or_fail "Out-Out;" csvsummary ${FUNCNAME[0]}
+}
+
+prepare_perf_data
+test_basic
+test_ns_rename
+test_ms_filtertasks_highlight
+test_extended_times_timelimit_limittasks
+test_summary
+test_summaryextended
+test_summaryonly
+test_extended_times_summary_ns
+test_csv
+test_csvsummary
+test_csv_extended_times
+test_csvsummary_extended
+cleanup
+exit $err