[LTP] [PATCH 1/2] adjust io-throttle testcases
Wang Long
wanglong19@meituan.com
Wed Nov 29 09:17:40 CET 2017
The current io-throttle testcases only can running on the very
old kernel which has the old block io cgroup interface. and the
cgroup name has renamed to blkio from blockio.
This patch update them.
Signed-off-by: Wang Long <wanglong19@meituan.com>
---
.../io-throttle/io_throttle_testplan.txt | 11 ++----
.../controllers/io-throttle/myfunctions-io.sh | 43 +++++++++++++---------
.../io-throttle/run_io_throttle_test.sh | 41 ++++++++-------------
3 files changed, 45 insertions(+), 50 deletions(-)
diff --git a/testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt b/testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt
index fa5b85b..b726e40 100644
--- a/testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt
+++ b/testcases/kernel/controllers/io-throttle/io_throttle_testplan.txt
@@ -21,15 +21,12 @@ limitations:
Each test is considered passed only if the I/O limitations above are respected.
Currently the following different scenarios are tested:
-- 1 single stream per cgroup using leaky-bucket I/O throttling
-- 1 single stream per cgroup using token-bucket I/O throttling
-- 2 parallel streams per cgroup using leaky-bucket I/O throttling
-- 2 parallel streams per cgroup using token-bucket I/O throttling
-- 4 parallel streams per cgroup using leaky-bucket I/O throttling
-- 4 parallel streams per cgroup using token-bucket I/O throttling
+- 1 single stream per cgroup I/O throttling
+- 2 parallel streams per cgroup I/O throttling
+- 4 parallel streams per cgroup I/O throttling
For any other information please refer to
-Documentation/controllers/io-throttle.txt in kernel documentation.
+Documentation/cgroup-v1/blkio-controller.txt in kernel documentation.
Questions?
----------
diff --git a/testcases/kernel/controllers/io-throttle/myfunctions-io.sh b/testcases/kernel/controllers/io-throttle/myfunctions-io.sh
index bf4bb2b..b604520 100755
--- a/testcases/kernel/controllers/io-throttle/myfunctions-io.sh
+++ b/testcases/kernel/controllers/io-throttle/myfunctions-io.sh
@@ -19,27 +19,34 @@
#
# usage . myfunctions.sh
+mounted=1
+
setup()
{
# create testcase cgroups
- if [ -e /dev/blockioctl ]; then
- echo "WARN: /dev/blockioctl already exist! overwriting."
- cleanup
- fi
- mkdir /dev/blockioctl
- mount -t cgroup -o blockio cgroup /dev/blockioctl
- if [ $? -ne 0 ]; then
- echo "ERROR: could not mount cgroup filesystem " \
- " on /dev/blockioctl. Exiting test."
- cleanup
- exit 1
+ mount_point=`grep -w blkio /proc/mounts | cut -f 2 | cut -d " " -f2`
+ if [ "$mount_point" = "" ]; then
+ mounted=0
+ mount_point=/dev/cgroup
fi
+
+ if [ "$mounted" -eq "0" ]; then
+ mkdir -p $mount_point
+ mount -t cgroup -o blkio none $mount_point
+ if [ $? -ne 0 ]; then
+ echo "ERROR: could not mount cgroup filesystem " \
+ " on $mount_point. Exiting test."
+ cleanup
+ exit 1
+ fi
+ fi
+
for i in `seq 1 3`; do
- if [ -e /dev/blockioctl/cgroup-$i ]; then
- rmdir /dev/blockioctl/cgroup-$i
+ if [ -e $mount_point/cgroup-$i ]; then
+ rmdir $mount_point/cgroup-$i
echo "WARN: earlier cgroup-$i found and removed"
fi
- mkdir /dev/blockioctl/cgroup-$i
+ mkdir $mount_point/cgroup-$i
if [ $? -ne 0 ]; then
echo "ERROR: could not create cgroup-$i" \
"Check your permissions. Exiting test."
@@ -53,9 +60,11 @@ cleanup()
{
echo "Cleanup called"
for i in `seq 1 3`; do
- rmdir /dev/blockioctl/cgroup-$i
+ rmdir $mount_point/cgroup-$i
rm -f /tmp/cgroup-$i.out
done
- umount /dev/blockioctl
- rmdir /dev/blockioctl
+ if [ "$mounted" -eq "0" ]; then
+ umount $mount_point
+ rmdir $mount_point
+ fi
}
diff --git a/testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh b/testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh
index c855fd0..7e591be 100755
--- a/testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh
+++ b/testcases/kernel/controllers/io-throttle/run_io_throttle_test.sh
@@ -25,12 +25,15 @@
trap cleanup SIGINT
BUFSIZE=16m
-DATASIZE=64m
+DATASIZE=320m
setup
-# get the device name of the entire mounted block device
+# get the major and minor device type of the entire mounted block device
dev=`df -P . | sed '1d' | cut -d' ' -f1 | sed 's/[p]*[0-9]*$//'`
+dev_major=`stat -L -c %t $dev`
+dev_minor=`stat -L -c %T $dev`
+devtype=`printf "%d:%d" 0x$dev_major 0x$dev_minor`
# evaluate device bandwidth
export MYGROUP=
@@ -49,22 +52,13 @@ for i in `seq 1 3`; do
done
for tasks in 1 2 4; do
-for strategy in 0 1; do
- # set bw limiting rules
- if [ -f /dev/blockioctl/blockio.bandwidth ]; then
- io_throttle_file=blockio.bandwidth
- elif [ -f /dev/blockioctl/blockio.bandwidth-max ]; then
- io_throttle_file=blockio.bandwidth-max
- else
- echo "ERROR: unknown kernel ABI. Exiting test."
- cleanup
- exit 1
- fi
for i in `seq 1 3`; do
limit=$(($phys_bw * 1024 / `echo 2^$i | bc`))
IOBW[$i]=$(($limit / 1024))
- /bin/echo $dev:$limit:$strategy:$limit > \
- /dev/blockioctl/cgroup-$i/${io_throttle_file}
+ /bin/echo "$devtype $limit" > \
+ $mount_point/cgroup-$i/blkio.throttle.read_bps_device
+ /bin/echo "$devtype $limit" > \
+ $mount_point/cgroup-$i/blkio.throttle.write_bps_device
if [ $? -ne 0 ]; then
echo "ERROR: could not set i/o bandwidth limit for cgroup-$i. Exiting test."
cleanup
@@ -79,14 +73,10 @@ for strategy in 0 1; do
stream="streams"
fi
echo -n ">> testing $tasks parallel $stream per cgroup "
- if [ $strategy -eq 0 ]; then
- echo "(leaky-bucket i/o throttling)"
- else
- echo "(token-bucket i/o throttling)"
- fi
+ echo ""
for i in `seq 1 3`; do
MYGROUP=cgroup-$i
- /bin/echo $$ > /dev/blockioctl/$MYGROUP/tasks
+ /bin/echo $$ > $mount_point/$MYGROUP/tasks
if [ $? -ne 0 ]; then
echo "ERROR: could not set i/o bandwidth limit for cgroup-$i. Exiting test."
cleanup
@@ -96,7 +86,7 @@ for strategy in 0 1; do
./iobw -direct $tasks $BUFSIZE $DATASIZE > /tmp/$MYGROUP.out &
PID[$i]=$!
done
- /bin/echo $$ > /dev/blockioctl/tasks
+ /bin/echo $$ > $mount_point/tasks
# wait for children completion
for i in `seq 1 3`; do
@@ -104,7 +94,7 @@ for strategy in 0 1; do
wait ${PID[$i]}
ret=$?
if [ $ret -ne 0 ]; then
- echo "ERROR: error code $ret during test $tasks.$strategy.$i. Exiting test."
+ echo "ERROR: error code $ret during test $tasks.$i. Exiting test."
cleanup
exit 1
fi
@@ -112,12 +102,11 @@ for strategy in 0 1; do
diff=$((${IOBW[$i]} - $iorate))
echo "($MYGROUP) i/o-bw ${IOBW[$i]} KiB/s, i/o-rate $iorate KiB/s, err $diff KiB/s"
if [ ${IOBW[$i]} -ge $iorate ]; then
- echo "TPASS Block device I/O bandwidth controller: test $tasks.$strategy.$i PASSED";
+ echo "TPASS Block device I/O bandwidth controller: test $tasks.$i PASSED";
else
- echo "TFAIL Block device I/O bandwidth controller: test $tasks.$strategy.$i FAILED";
+ echo "TFAIL Block device I/O bandwidth controller: test $tasks.$i FAILED";
fi
done
done
-done
cleanup
--
1.8.3.1
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