perf tests: Add daemon 'list' command test

Add test for basic perf daemon listing via the CSV output mode (-x
option).

Check that the configured sessions display expected values.

Committer testing:

  [root@five ~]# perf test daemon
  76: daemon operations                                               : Ok
  [root@five ~]#
  [root@five ~]# perf test -v daemon
  76: daemon operations                                               :
  --- start ---
  test child forked, pid 785037
  test daemon list
  test child finished with 0
  ---- end ----
  daemon operations: Ok
  [root@five ~]#
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Budankov <abudankov@huawei.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: https://lore.kernel.org/r/20210208200908.1019149-20-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/tests/shell/daemon.sh

+#!/bin/sh
+# daemon operations
+# SPDX-License-Identifier: GPL-2.0
+
+check_line_first()
+{
+	local line=$1
+	local name=$2
+	local base=$3
+	local output=$4
+	local lock=$5
+	local up=$6
+
+	local line_name=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $2 }'`
+	local line_base=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $3 }'`
+	local line_output=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $4 }'`
+	local line_lock=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $5 }'`
+	local line_up=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $6 }'`
+
+	if [ "${name}" != "${line_name}" ]; then
+		echo "FAILED: wrong name"
+		error=1
+	fi
+
+	if [ "${base}" != "${line_base}" ]; then
+		echo "FAILED: wrong base"
+		error=1
+	fi
+
+	if [ "${output}" != "${line_output}" ]; then
+		echo "FAILED: wrong output"
+		error=1
+	fi
+
+	if [ "${lock}" != "${line_lock}" ]; then
+		echo "FAILED: wrong lock"
+		error=1
+	fi
+
+	if [ "${up}" != "${line_up}" ]; then
+		echo "FAILED: wrong up"
+		error=1
+	fi
+}
+
+check_line_other()
+{
+	local line=$1
+	local name=$2
+	local run=$3
+	local base=$4
+	local output=$5
+	local control=$6
+	local ack=$7
+	local up=$8
+
+	local line_name=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $2 }'`
+	local line_run=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $3 }'`
+	local line_base=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $4 }'`
+	local line_output=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $5 }'`
+	local line_control=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $6 }'`
+	local line_ack=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $7 }'`
+	local line_up=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $8 }'`
+
+	if [ "${name}" != "${line_name}" ]; then
+		echo "FAILED: wrong name"
+		error=1
+	fi
+
+	if [ "${run}" != "${line_run}" ]; then
+		echo "FAILED: wrong run"
+		error=1
+	fi
+
+	if [ "${base}" != "${line_base}" ]; then
+		echo "FAILED: wrong base"
+		error=1
+	fi
+
+	if [ "${output}" != "${line_output}" ]; then
+		echo "FAILED: wrong output"
+		error=1
+	fi
+
+	if [ "${control}" != "${line_control}" ]; then
+		echo "FAILED: wrong control"
+		error=1
+	fi
+
+	if [ "${ack}" != "${line_ack}" ]; then
+		echo "FAILED: wrong ack"
+		error=1
+	fi
+
+	if [ "${up}" != "${line_up}" ]; then
+		echo "FAILED: wrong up"
+		error=1
+	fi
+}
+
+daemon_start()
+{
+	local config=$1
+	local session=$2
+
+	perf daemon start --config ${config}
+
+	# wait for the session to ping
+	local state="FAIL"
+	while [ "${state}" != "OK" ]; do
+		state=`perf daemon ping --config ${config} --session ${session} | awk '{ print $1 }'`
+		sleep 0.05
+	done
+}
+
+daemon_exit()
+{
+	local base=$1
+	local config=$2
+
+	local line=`perf daemon --config ${config} -x: | head -1`
+	local pid=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $1 }'`
+
+	# stop daemon
+	perf daemon stop --config ${config}
+
+	# ... and wait for the pid to go away
+	tail --pid=${pid} -f /dev/null
+}
+
+test_list()
+{
+	echo "test daemon list"
+
+	local config=$(mktemp /tmp/perf.daemon.config.XXX)
+	local base=$(mktemp -d /tmp/perf.daemon.base.XXX)
+
+	cat <<EOF > ${config}
+[daemon]
+base=BASE
+
+[session-size]
+run = -e cpu-clock
+
+[session-time]
+run = -e task-clock
+EOF
+
+	sed -i -e "s|BASE|${base}|" ${config}
+
+	# start daemon
+	daemon_start ${config} size
+
+	# check first line
+	# pid:daemon:base:base/output:base/lock
+	local line=`perf daemon --config ${config} -x: | head -1`
+	check_line_first ${line} daemon ${base} ${base}/output ${base}/lock "0"
+
+	# check 1st session
+	# pid:size:-e cpu-clock:base/size:base/size/output:base/size/control:base/size/ack:0
+	local line=`perf daemon --config ${config} -x: | head -2 | tail -1`
+	check_line_other "${line}" size "-e cpu-clock" ${base}/session-size \
+			 ${base}/session-size/output ${base}/session-size/control \
+			 ${base}/session-size/ack "0"
+
+	# check 2nd session
+	# pid:time:-e task-clock:base/time:base/time/output:base/time/control:base/time/ack:0
+	local line=`perf daemon --config ${config} -x: | head -3 | tail -1`
+	check_line_other "${line}" time "-e task-clock" ${base}/session-time \
+			 ${base}/session-time/output ${base}/session-time/control \
+			 ${base}/session-time/ack "0"
+
+	# stop daemon
+	daemon_exit ${base} ${config}
+
+	rm -rf ${base}
+	rm -f ${config}
+}
+
+error=0
+
+test_list
+
+exit ${error}