diff options
Diffstat (limited to 'src/spdk/test/iscsi_tgt/qos')
| -rwxr-xr-x | src/spdk/test/iscsi_tgt/qos/qos.sh | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/spdk/test/iscsi_tgt/qos/qos.sh b/src/spdk/test/iscsi_tgt/qos/qos.sh new file mode 100755 index 00000000..da12f8f8 --- /dev/null +++ b/src/spdk/test/iscsi_tgt/qos/qos.sh @@ -0,0 +1,98 @@ +#!/usr/bin/env bash + +testdir=$(readlink -f $(dirname $0)) +rootdir=$(readlink -f $testdir/../../..) +source $rootdir/test/common/autotest_common.sh +source $rootdir/test/iscsi_tgt/common.sh + +function check_qos_works_well() { + local enable_limit=$1 + local iops_limit=$2 + local retval=0 + + start_io_count=$($rpc_py get_bdevs_iostat -b $3 | jq -r '.[1].num_read_ops') + $fio_py 512 64 randread 5 + end_io_count=$($rpc_py get_bdevs_iostat -b $3 | jq -r '.[1].num_read_ops') + + read_iops=$(((end_io_count-start_io_count)/5)) + + if [ $enable_limit = true ]; then + retval=$(echo "$iops_limit*0.9 < $read_iops && $read_iops < $iops_limit*1.01" | bc) + if [ $retval -eq 0 ]; then + echo "Failed to limit the io read rate of malloc bdev by qos" + exit 1 + fi + else + retval=$(echo "$read_iops > $iops_limit" | bc) + if [ $retval -eq 0 ]; then + echo "$read_iops less than $iops_limit - expected greater than" + exit 1 + fi + fi +} + +if [ -z "$TARGET_IP" ]; then + echo "TARGET_IP not defined in environment" + exit 1 +fi + +if [ -z "$INITIATOR_IP" ]; then + echo "INITIATOR_IP not defined in environment" + exit 1 +fi + +timing_enter qos + +MALLOC_BDEV_SIZE=64 +MALLOC_BLOCK_SIZE=512 +IOPS_LIMIT=20000 +rpc_py="$rootdir/scripts/rpc.py" +fio_py="$rootdir/scripts/fio.py" + +timing_enter start_iscsi_tgt + +$ISCSI_APP & +pid=$! +echo "Process pid: $pid" +trap "killprocess $pid; exit 1" SIGINT SIGTERM EXIT +waitforlisten $pid +echo "iscsi_tgt is listening. Running tests..." + +timing_exit start_iscsi_tgt + +$rpc_py add_portal_group $PORTAL_TAG $TARGET_IP:$ISCSI_PORT +$rpc_py add_initiator_group $INITIATOR_TAG $INITIATOR_NAME $NETMASK +$rpc_py construct_malloc_bdev $MALLOC_BDEV_SIZE $MALLOC_BLOCK_SIZE +# "Malloc0:0" ==> use Malloc0 blockdev for LUN0 +# "1:2" ==> map PortalGroup1 to InitiatorGroup2 +# "64" ==> iSCSI queue depth 64 +# "-d" ==> disable CHAP authentication +$rpc_py construct_target_node Target1 Target1_alias 'Malloc0:0' $PORTAL_TAG:$INITIATOR_TAG 64 -d +sleep 1 + +iscsiadm -m discovery -t sendtargets -p $TARGET_IP:$ISCSI_PORT +iscsiadm -m node --login -p $TARGET_IP:$ISCSI_PORT + +trap "iscsicleanup; killprocess $pid; exit 1" SIGINT SIGTERM EXIT + +# Limit the I/O rate by RPC, then confirm the observed rate matches. +$rpc_py set_bdev_qos_limit Malloc0 --rw_ios_per_sec $IOPS_LIMIT +check_qos_works_well true $IOPS_LIMIT Malloc0 + +# Now disable the rate limiting, and confirm the observed rate is not limited anymore. +$rpc_py set_bdev_qos_limit Malloc0 --rw_ios_per_sec 0 +check_qos_works_well false $IOPS_LIMIT Malloc0 + +# Limit the I/O rate again. +$rpc_py set_bdev_qos_limit Malloc0 --rw_ios_per_sec $IOPS_LIMIT +check_qos_works_well true $IOPS_LIMIT Malloc0 +echo "I/O rate limiting tests successful" + +iscsicleanup +$rpc_py delete_target_node 'iqn.2016-06.io.spdk:Target1' + +rm -f ./local-job0-0-verify.state +trap - SIGINT SIGTERM EXIT +killprocess $pid + +timing_exit qos |