diff options
Diffstat (limited to 'src/spdk/test/iscsi_tgt/qos')
| -rwxr-xr-x | src/spdk/test/iscsi_tgt/qos/qos.sh | 145 |
1 files changed, 145 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 000000000..0a8015e18 --- /dev/null +++ b/src/spdk/test/iscsi_tgt/qos/qos.sh @@ -0,0 +1,145 @@ +#!/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 + +# $1 = "iso" - triggers isolation mode (setting up required environment). +# $2 = test type posix or vpp. defaults to posix. +iscsitestinit $1 $2 + +function run_fio() { + local bdev_name=$1 + local iostats + local start_io_count + local start_bytes_read + local end_io_count + local end_bytes_read + local run_time=5 + + iostats=$($rpc_py bdev_get_iostat -b $bdev_name) + start_io_count=$(jq -r '.bdevs[0].num_read_ops' <<< "$iostats") + start_bytes_read=$(jq -r '.bdevs[0].bytes_read' <<< "$iostats") + + $fio_py -p iscsi -i 1024 -d 128 -t randread -r $run_time + + iostats=$($rpc_py bdev_get_iostat -b $bdev_name) + end_io_count=$(jq -r '.bdevs[0].num_read_ops' <<< "$iostats") + end_bytes_read=$(jq -r '.bdevs[0].bytes_read' <<< "$iostats") + + IOPS_RESULT=$(((end_io_count - start_io_count) / run_time)) + BANDWIDTH_RESULT=$(((end_bytes_read - start_bytes_read) / run_time)) +} + +function verify_qos_limits() { + local result=$1 + local limit=$2 + + [ "$(bc <<< "$result > $limit*0.85")" -eq 1 ] \ + && [ "$(bc <<< "$result < $limit*1.05")" -eq 1 ] +} + +if [ -z "$TARGET_IP" ]; then + echo "TARGET_IP not defined in environment" + exit 1 +fi + +if [ -z "$INITIATOR_IP" ]; then + echo "INITIATOR_IP not defined in environment" + exit 1 +fi + +MALLOC_BDEV_SIZE=64 +MALLOC_BLOCK_SIZE=512 +IOPS_RESULT= +BANDWIDTH_RESULT= +rpc_py="$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; iscsitestfini $1 $2; exit 1' SIGINT SIGTERM EXIT +waitforlisten $pid +echo "iscsi_tgt is listening. Running tests..." + +timing_exit start_iscsi_tgt + +$rpc_py iscsi_create_portal_group $PORTAL_TAG $TARGET_IP:$ISCSI_PORT +$rpc_py iscsi_create_initiator_group $INITIATOR_TAG $INITIATOR_NAME $NETMASK +$rpc_py bdev_malloc_create $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 iscsi_create_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; iscsitestfini $1 $2; exit 1' SIGINT SIGTERM EXIT + +# Run FIO without any QOS limits to determine the raw performance +run_fio Malloc0 + +# Set IOPS/bandwidth limit to 50% of the actual unrestrained performance. +IOPS_LIMIT=$((IOPS_RESULT / 2)) +BANDWIDTH_LIMIT=$((BANDWIDTH_RESULT / 2)) +# Set READ bandwidth limit to 50% of the RW bandwidth limit to be able +# to differentiate those two. +READ_BANDWIDTH_LIMIT=$((BANDWIDTH_LIMIT / 2)) + +# Also round them down to nearest multiple of either 1000 IOPS or 1MB BW +# which are the minimal QoS granularities +IOPS_LIMIT=$((IOPS_LIMIT / 1000 * 1000)) +BANDWIDTH_LIMIT_MB=$((BANDWIDTH_LIMIT / 1024 / 1024)) +BANDWIDTH_LIMIT=$((BANDWIDTH_LIMIT_MB * 1024 * 1024)) +READ_BANDWIDTH_LIMIT_MB=$((READ_BANDWIDTH_LIMIT / 1024 / 1024)) +READ_BANDWIDTH_LIMIT=$((READ_BANDWIDTH_LIMIT_MB * 1024 * 1024)) + +# Limit the I/O rate by RPC, then confirm the observed rate matches. +$rpc_py bdev_set_qos_limit Malloc0 --rw_ios_per_sec $IOPS_LIMIT +run_fio Malloc0 +verify_qos_limits $IOPS_RESULT $IOPS_LIMIT + +# Now disable the rate limiting, and confirm the observed rate is not limited anymore. +$rpc_py bdev_set_qos_limit Malloc0 --rw_ios_per_sec 0 +run_fio Malloc0 +[ "$IOPS_RESULT" -gt "$IOPS_LIMIT" ] + +# Limit the I/O rate again. +$rpc_py bdev_set_qos_limit Malloc0 --rw_ios_per_sec $IOPS_LIMIT +run_fio Malloc0 +verify_qos_limits $IOPS_RESULT $IOPS_LIMIT + +echo "I/O rate limiting tests successful" + +# Limit the I/O bandwidth rate by RPC, then confirm the observed rate matches. +$rpc_py bdev_set_qos_limit Malloc0 --rw_ios_per_sec 0 --rw_mbytes_per_sec $BANDWIDTH_LIMIT_MB +run_fio Malloc0 +verify_qos_limits $BANDWIDTH_RESULT $BANDWIDTH_LIMIT + +# Now disable the bandwidth rate limiting, and confirm the observed rate is not limited anymore. +$rpc_py bdev_set_qos_limit Malloc0 --rw_mbytes_per_sec 0 +run_fio Malloc0 +[ "$BANDWIDTH_RESULT" -gt "$BANDWIDTH_LIMIT" ] + +# Limit the I/O bandwidth rate again with both read/write and read/only. +$rpc_py bdev_set_qos_limit Malloc0 --rw_mbytes_per_sec $BANDWIDTH_LIMIT_MB --r_mbytes_per_sec $READ_BANDWIDTH_LIMIT_MB +run_fio Malloc0 +verify_qos_limits $BANDWIDTH_RESULT $READ_BANDWIDTH_LIMIT + +echo "I/O bandwidth limiting tests successful" + +iscsicleanup +$rpc_py iscsi_delete_target_node 'iqn.2016-06.io.spdk:Target1' + +rm -f ./local-job0-0-verify.state +trap - SIGINT SIGTERM EXIT +killprocess $pid + +iscsitestfini $1 $2 |