Commit ed5f8339 authored by Karol Latecki's avatar Karol Latecki Committed by Tomasz Zawadzki
Browse files

test/vhost: enable BPF traces in performance tests 



Signed-off-by: default avatarKarol Latecki <karol.latecki@intel.com>
Change-Id: Id63a0ef523be75def672ef3b4abe270624c28af0
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8681


Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarMichal Berger <michalx.berger@intel.com>
Reviewed-by: default avatarKonrad Sztyber <konrad.sztyber@intel.com>
parent a182f55b

test/vhost/perf_bench/vhost_perf.sh

+25 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ sar_delay="0" 
sar_interval="1"

sar_count="10"

vm_throttle=""

bpf_traces=()

ctrl_type="spdk_vhost_scsi"

use_split=false

kernel_cpus=""
@@ -59,6 +60,8 @@ function usage() { 
	echo "    --sar-delay=INT         Wait for X seconds before starting SAR measurement. Default: 0."

	echo "    --sar-interval=INT      Interval (seconds) argument for SAR. Default: 1s."

	echo "    --sar-count=INT         Count argument for SAR. Default: 10."

	echo "    --bpf-traces=LIST       Comma delimited list of .bt scripts for enabling BPF traces."

	echo "                            List of .bt scripts available in scripts/bpf"

	echo "    --vm-throttle-iops=INT  I/Os throttle rate in IOPS for each device on the VMs."

	echo "    --ctrl-type=TYPE        Controller type to use for test:"

	echo "                            spdk_vhost_scsi - use spdk vhost scsi"
@@ -171,6 +174,7 @@ while getopts 'xh-:' optchar; do 
				sar-delay=*) sar_delay="${OPTARG#*=}" ;;

				sar-interval=*) sar_interval="${OPTARG#*=}" ;;

				sar-count=*) sar_count="${OPTARG#*=}" ;;

				bpf-traces=*) IFS="," read -r -a bpf_traces <<< "${OPTARG#*=}" ;;

				vm-throttle-iops=*) vm_throttle="${OPTARG#*=}" ;;

				ctrl-type=*) ctrl_type="${OPTARG#*=}" ;;

				packed-ring) packed_ring=true ;;
@@ -312,6 +316,23 @@ else 
	notice "Configuring SPDK vhost..."

	vhost_run -n "${vhost_num}" -g -a "-p ${vhost_main_core} -m ${vhost_reactor_mask}"

	notice "..."

	if [[ ${#bpf_traces[@]} -gt 0 ]]; then

		notice "Enabling BPF traces: ${bpf_traces[*]}"

		vhost_dir="$(get_vhost_dir 0)"

		vhost_pid="$(cat $vhost_dir/vhost.pid)"



		bpf_cmd=("$rootdir/scripts/bpftrace.sh")

		bpf_cmd+=("$vhost_pid")

		for trace in "${bpf_traces[@]}"; do

			bpf_cmd+=("$rootdir/scripts/bpf/$trace")

		done



		BPF_OUTFILE="$VHOST_DIR/bpftraces.txt" "${bpf_cmd[@]}" &

		bpf_script_pid=$!



		# Wait a bit for trace capture to start

		sleep 3

	fi



	if [[ $use_split == true ]]; then

		notice "Configuring split bdevs configuration..."
@@ -488,4 +509,8 @@ else 
		cleanup_lvol_cfg

	fi

	vhost_kill "${vhost_num}"



	if ((bpf_script_pid)); then

		wait $bpf_script_pid

	fi

fi