Commit 91a17d6f authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
Browse files

perf tests: Add daemon reconfig test 



Add a test for daemon reconfiguration. The test changes the
configuration file and checks that the session is changed properly.

Committer testing:

  [root@five ~]# perf test daemon
  76: daemon operations                                               : Ok
  [root@five ~]# time perf test daemon
  76: daemon operations                                               : Ok

  real	0m6.055s
  user	0m0.174s
  sys	0m0.147s
  [root@five ~]# time perf test -v daemon
  76: daemon operations                                               :
  --- start ---
  test child forked, pid 786863
  test daemon list
  test daemon reconfig
  test child finished with 0
  ---- end ----
  daemon operations: Ok

  real	0m6.127s
  user	0m0.222s
  sys	0m0.165s
  [root@five ~]#

Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Tested-by: default avatarArnaldo 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/20210208200908.1019149-21-jolsa@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 2291bb91

tools/perf/tests/shell/daemon.sh

+119 −0
Original line number Diff line number Diff line
@@ -177,8 +177,127 @@ EOF 
	rm -f ${config}

}



test_reconfig()

{

	echo "test daemon reconfig"



	local config=$(mktemp /tmp/perf.daemon.config.XXX)

	local base=$(mktemp -d /tmp/perf.daemon.base.XXX)



	# prepare config

	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 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"

	local pid=`echo "${line}" | awk 'BEGIN { FS = ":" } ; { print $1 }'`



	# prepare new config

	local config_new=${config}.new

	cat <<EOF > ${config_new}

[daemon]

base=BASE



[session-size]

run = -e cpu-clock



[session-time]

run = -e cpu-clock

EOF



	# TEST 1 - change config



	sed -i -e "s|BASE|${base}|" ${config_new}

	cp ${config_new} ${config}



	# wait for old session to finish

	tail --pid=${pid} -f /dev/null



	# wait for new one to start

	local state="FAIL"

	while [ "${state}" != "OK" ]; do

		state=`perf daemon ping --config ${config} --session time | awk '{ print $1 }'`

	done



	# check reconfigured 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 cpu-clock" ${base}/session-time \

			 ${base}/session-time/output ${base}/session-time/control ${base}/session-time/ack "0"



	# TEST 2 - empty config



	local config_empty=${config}.empty

	cat <<EOF > ${config_empty}

[daemon]

base=BASE

EOF



	# change config

	sed -i -e "s|BASE|${base}|" ${config_empty}

	cp ${config_empty} ${config}



	# wait for sessions to finish

	local state="OK"

	while [ "${state}" != "FAIL" ]; do

		state=`perf daemon ping --config ${config} --session time | awk '{ print $1 }'`

	done



	local state="OK"

	while [ "${state}" != "FAIL" ]; do

		state=`perf daemon ping --config ${config} --session size | awk '{ print $1 }'`

	done



	local one=`perf daemon --config ${config} -x: | wc -l`



	if [ ${one} -ne "1" ]; then

		echo "FAILED: wrong list output"

		error=1

	fi



	# TEST 3 - config again



	cp ${config_new} ${config}



	# wait for size to start

	local state="FAIL"

	while [ "${state}" != "OK" ]; do

		state=`perf daemon ping --config ${config} --session size | awk '{ print $1 }'`

	done



	# wait for time to start

	local state="FAIL"

	while [ "${state}" != "OK" ]; do

		state=`perf daemon ping --config ${config} --session time | awk '{ print $1 }'`

	done



	# stop daemon

	daemon_exit ${base} ${config}



	rm -rf ${base}

	rm -f ${config}

	rm -f ${config_new}

	rm -f ${config_empty}

}

error=0



test_list

test_reconfig



exit ${error}