metrics: Add compare virtiofsd dax script

This PR adds the compare virtiofsd dax script for kata metrics.

Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>

tests/metrics/storage/fio-k8s/scripts/compare-virtiofsd-dax.sh

@@ -0,0 +1,151 @@
+#!/bin/bash
+#Copyright (c) 2021-2023 Intel Corporation
+#
+#SPDX-License-Identifier: Apache-2.0
+#
+
+set -o errexit
+set -o nounset
+set -o pipefail
+set -o errtrace
+
+script_dir=$(dirname "$(readlink -f "$0")")
+
+runtime_path="/usr/local/bin/kata-runtime"
+kata_config_path="/usr/share/defaults/kata-containers/configuration.toml"
+
+results_dir="$(realpath ./)/results"
+
+KATA_RUNTIME="${KATA_RUNTIME_CLASS:-kata}"
+BAREMETAL_RUNTIME="runc"
+RUNTIME_CLASS=""
+
+FIO_SIZE="${FIO_SIZE:-500M}"
+FIO_BLOCKSIZE="${FIO_BLOCKSIZE:-4K}"
+VIRTIOFS_DAX_SIZE=${VIRTIOFS_DAX_SIZE:-600M}
+
+# set the base case for virtiofsd
+set_base_virtiofs_config() {
+	# Running kata-qemu-virtiofs
+	# Defaults for virtiofs
+	sudo crudini --set --existing "$kata_config_path" hypervisor.qemu virtio_fs_cache '"auto"'
+	sudo crudini --set --existing "$kata_config_path" hypervisor.qemu virtio_fs_cache_size ${VIRTIOFS_DAX_SIZE}
+}
+
+## helper function: get name of current bash function
+fn_name() {
+	echo "${FUNCNAME[1]}"
+}
+
+# directory where results are stored
+get_results_dir() {
+	local test_name
+	local test_result_dir
+	test_name="${1}"
+	test_result_dir="${results_dir}/${test_name}"
+	mkdir -p "${test_result_dir}"
+	echo "${test_result_dir}"
+}
+
+# Collect kata env
+# save kata config toml
+# save output from kata-env
+kata_env() {
+	local suffix=${1}
+	local config_path
+	local kata_env_bk
+	local kata_config_bk
+	kata_env_bk="$(get_results_dir "${suffix}")/kata-env.toml"
+	kata_config_bk="$(get_results_dir "${suffix}")/kata-config.toml"
+
+	${runtime_path} kata-env >"${kata_env_bk}"
+	config_path="$(${runtime_path} kata-env --json | jq .Runtime.Config.Path -r)"
+	cp "${config_path}" "${kata_config_bk}"
+}
+
+# Collect the command used by virtiofsd
+collect_qemu_virtiofs_cmd() {
+	local rdir
+	local test_name
+	test_name="${1}"
+
+	rdir=$(get_results_dir "${test_name}")
+	# TODO
+}
+
+# Run metrics runner
+run_workload() {
+	local test_name
+	local test_result_file
+	local test_result_dir
+
+	test_name="${1}"
+
+	test_result_dir="$(get_results_dir "${test_name}")"
+	test_result_file="${test_result_dir}/test-out.txt"
+
+	echo "Running for kata config: ${test_name}"
+	collect_qemu_virtiofs_cmd "$test_name"
+
+	fio_runner_dir="${script_dir}/../../cmd/fiotest/"
+	fio_jobs="${script_dir}/../../configs/test-config/"
+	make -C "${fio_runner_dir}" build
+	pwd
+	set -x
+	"${fio_runner_dir}fio-k8s" \
+		--debug \
+		--fio.size "${FIO_SIZE}" \
+		--fio.block-size "${FIO_BLOCKSIZE}" \
+		--container-runtime "${RUNTIME_CLASS}" \
+		--test-name "${test_name}" \
+		--output-dir "$(dirname ${test_result_dir})" \
+		"${fio_jobs}" |
+		tee \
+			"${test_result_file}"
+	set +x
+}
+
+pool_0_cache_auto_dax() {
+	local suffix="$(fn_name)"
+
+	set_base_virtiofs_config
+	sudo crudini --set --existing "$kata_config_path" hypervisor.qemu virtio_fs_extra_args '["--thread-pool-size=0","-o","no_posix_lock","-o","xattr"]'
+	sudo crudini --set --existing "$kata_config_path" hypervisor.qemu virtio_fs_cache '"auto"'
+	sudo crudini --set --existing "$kata_config_path" hypervisor.qemu virtio_fs_cache_size 1024
+	kata_env "${suffix}"
+	RUNTIME_CLASS="${KATA_RUNTIME}"
+	run_workload "${suffix}"
+}
+
+pool_0_cache_auto_no_dax() {
+	local suffix="$(fn_name)"
+
+	set_base_virtiofs_config
+	sudo crudini --set --existing "$kata_config_path" hypervisor.qemu virtio_fs_extra_args '["--thread-pool-size=0","-o","no_posix_lock","-o","xattr"]'
+	sudo crudini --set --existing "$kata_config_path" hypervisor.qemu virtio_fs_cache '"auto"'
+	sudo crudini --set --existing "$kata_config_path" hypervisor.qemu virtio_fs_cache_size 0
+
+	kata_env "${suffix}"
+
+	RUNTIME_CLASS="${KATA_RUNTIME}"
+	run_workload "${suffix}"
+	echo "done"
+}
+
+k8s_baremetal() {
+	local suffix="$(fn_name)"
+
+	RUNTIME_CLASS="${BAREMETAL_RUNTIME}"
+	run_workload "${suffix}"
+}
+
+main() {
+
+	mkdir -p "${results_dir}"
+
+	k8s_baremetal
+	pool_0_cache_auto_dax
+	pool_0_cache_auto_no_dax
+}
+
+main $*