This test case is to test switching rqos policy w/ io running.
The fio is running under cgroup with blkio controller opened.
Signed-off-by: Wang Jianchao (Kuaishou) <jianchao.wan9@xxxxxxxxx>
---
tests/block/032 | 86 +++++++++++++++++++++++++++++++++++++++++++++
tests/block/032.out | 2 ++
2 files changed, 88 insertions(+)
create mode 100755 tests/block/032
create mode 100644 tests/block/032.out
diff --git a/tests/block/032 b/tests/block/032
new file mode 100755
index 0000000..c256ff2
--- /dev/null
+++ b/tests/block/032
@@ -0,0 +1,86 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2022 Wang Jianchao
+#
+# Stress test to run the fio in cgroup and iocost/iolatency/ioprio switching
+# concurrently. It mainly to verify the lifecycle of rqos when rqos policy
+# is deactivated.
+
+. tests/block/rc
+. common/cgroup
+
+DESCRIPTION="Stress test for concurrent fio in cgroup and rqos policy switching"
+TIMED=1
+
+requires() {
+ _have_cgroup2_controller io && _have_fio
+}
+
+test_device() {
+
+ echo "Running ${TEST_NAME}"
+
+ _init_cgroup2
+
+ # setup cgroups
+ local cgrp2_dir=$(_cgroup2_base_dir)
+ echo "+io" > ${cgrp2_dir}/cgroup.subtree_control
+ echo "+io" > "${CGROUP2_DIR}/cgroup.subtree_control"
+
+ if _test_dev_is_rotational; then
+ size="32m"
+ else
+ size="1g"
+ fi
+
+ local rqos=("wbt" "iolat" "iocost" "ioprio")
+ local devn=`cat ${TEST_DEV_SYSFS}/dev`
+ local cgrp
+
+ fio_jobs=()
+ for ((cgrp=0; cgrp<8; cgrp++))
+ do
+ mkdir -p "$CGROUP2_DIR/block032-$cgrp"
+ fio_jobs+=("--name=job$cgrp" "--cgroup="blktests/block032-$cgrp"")
+ done
+
+ # start fio job
+ fio --rw=randread --direct=1 --ioengine=libaio --iodepth=128 \
+ --bs=4K --group_reporting=1 --loops=100000 --runtime=120 \
+ --filename=${TEST_DEV} --size=${size} \
+ "${fio_jobs[@]}" > /dev/null &
+
+ start_time=$(date +%s)
+ timeout=${TIMEOUT:=900}
+ while kill -0 $! 2>/dev/null; do
+ idx=$((RANDOM % ${#rqos[@]}))
+ pol=${rqos[$idx]}
+ cat ${TEST_DEV_SYSFS}/queue/qos | grep "\[$pol\]" > /dev/null
+ if [ $? -eq 0 ];then
+ echo "-$pol" > ${TEST_DEV_SYSFS}/queue/qos
+ else
+ echo "+$pol" > ${TEST_DEV_SYSFS}/queue/qos
+ case $pol in
+ "iocost")
+ echo "$devn enable=1 ctrl=auto" > ${cgrp2_dir}/io.cost.qos
+ echo "$devn ctrl=auto" > ${cgrp2_dir}/io.cost.model
+ ;;
+ "iolat")
+ ;;
+ "ioprio")
+ ;;
+ *)
+ ;;
+ esac
+ fi
+ sleep .2
+ end_time=$(date +%s)
+ if (( end_time - start_time > timeout + 15 )); then
+ echo "fio did not finish after $timeout seconds!"
+ break
+ fi
+ done
+
+ _exit_cgroup2
+ echo "Test complete"
+}
diff --git a/tests/block/032.out b/tests/block/032.out
new file mode 100644
index 0000000..3604e9e
--- /dev/null
+++ b/tests/block/032.out
@@ -0,0 +1,2 @@
+Running block/032
+Test complete
--
2.17.1
