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|
#!/bin/bash -e
# This script will use QEMU to test gf-complete especially SIMD support
# on different architectures and cpus. It will boot a qemu machine
# and run an Ubuntu cloud image. All testing will happen inside the
# QEMU machine.
# The following packages are required:
# qemu-system-aarch64
# qemu-system-arm
# qemu-system-x86_64
# genisoimage
script_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
qemu_dir="${script_dir}/.qemu"
ssh_port=2222
ssh_pubkey_file="${qemu_dir}/qemu.pub"
ssh_key_file="${qemu_dir}/qemu"
mkdir -p "${qemu_dir}"
cleanup() {
if [[ -n "$(jobs -p)" ]]; then
echo killing qemu processes "$(jobs -p)"
kill $(jobs -p)
fi
}
trap cleanup EXIT
start_qemu() {
arch=$1
cpu=$2
image_version="xenial"
image_url_base="http://cloud-images.ubuntu.com/${image_version}/current"
case $arch in
i[[3456]]86*|x86_64*|amd64*)
image_kernel="${image_version}-server-cloudimg-amd64-vmlinuz-generic"
image_initrd="${image_version}-server-cloudimg-amd64-initrd-generic"
image_disk="${image_version}-server-cloudimg-amd64-disk1.img"
;;
aarch64*)
image_kernel="${image_version}-server-cloudimg-arm64-vmlinuz-generic"
image_initrd="${image_version}-server-cloudimg-arm64-initrd-generic"
image_disk="${image_version}-server-cloudimg-arm64-disk1.img"
;;
arm*)
image_kernel="${image_version}-server-cloudimg-armhf-vmlinuz-lpae"
image_initrd="${image_version}-server-cloudimg-armhf-initrd-generic-lpae"
image_disk="${image_version}-server-cloudimg-armhf-disk1.img"
;;
*) die "Unsupported arch" ;;
esac
[[ -f ${qemu_dir}/${image_kernel} ]] || wget -O ${qemu_dir}/${image_kernel} ${image_url_base}/unpacked/${image_kernel}
[[ -f ${qemu_dir}/${image_initrd} ]] || wget -O ${qemu_dir}/${image_initrd} ${image_url_base}/unpacked/${image_initrd}
[[ -f ${qemu_dir}/${image_disk} ]] || wget -O ${qemu_dir}/${image_disk} ${image_url_base}/${image_disk}
#create a delta disk to keep the original image clean
delta_disk="${qemu_dir}/disk.img"
rm -f ${delta_disk}
qemu-img create -q -f qcow2 -b "${qemu_dir}/${image_disk}" ${delta_disk}
# generate an ssh keys
[[ -f ${ssh_pubkey_file} ]] || ssh-keygen -q -N "" -f ${ssh_key_file}
# create a config disk to set the SSH keys
cat > "${qemu_dir}/meta-data" <<EOF
instance-id: qemu
local-hostname: qemu
EOF
cat > "${qemu_dir}/user-data" <<EOF
#cloud-config
hostname: qemu
manage_etc_hosts: true
users:
- name: qemu
ssh-authorized-keys:
- $(cat "${ssh_pubkey_file}")
sudo: ['ALL=(ALL) NOPASSWD:ALL']
groups: sudo
shell: /bin/bash
EOF
genisoimage -quiet -output "${qemu_dir}/cloud.iso" -volid cidata -joliet -rock "${qemu_dir}/user-data" "${qemu_dir}/meta-data"
common_args=( \
-name "qemu" \
-m 1024 \
-nodefaults \
-nographic \
-kernel ${qemu_dir}/${image_kernel} \
-initrd ${qemu_dir}/${image_initrd} \
-cdrom ${qemu_dir}/cloud.iso \
-serial file:${qemu_dir}/console.log
)
case $arch in
i[[3456]]86*|x86_64*|amd64*)
qemu-system-x86_64 \
"${common_args[@]}" \
-machine accel=kvm -cpu $cpu \
-append "console=ttyS0 root=/dev/sda1" \
-hda "${delta_disk}" \
-net nic,vlan=0,model=virtio \
-net user,vlan=0,hostfwd=tcp::"${ssh_port}"-:22,hostname="${vm_name}" \
&
;;
aarch64*|arm*)
qemu-system-$arch \
"${common_args[@]}" \
-machine virt -cpu $cpu -machine type=virt -smp 1 \
-drive if=none,file="${delta_disk}",id=hd0 \
-device virtio-blk-device,drive=hd0 \
-append "console=ttyAMA0 root=/dev/vda1" \
-netdev user,id=eth0,hostfwd=tcp::"${ssh_port}"-:22,hostname="${vm_name}" \
-device virtio-net-device,netdev=eth0 \
&
;;
*) die "Unsupported arch" ;;
esac
wait_for_ssh
}
stop_qemu() {
run_ssh "sudo shutdown now" || true
wait $(jobs -p)
}
shared_args=(
-i ${ssh_key_file}
-F /dev/null
-o BatchMode=yes
-o UserKnownHostsFile=/dev/null
-o StrictHostKeyChecking=no
-o IdentitiesOnly=yes
)
ssh_args=(
${shared_args[*]}
-p ${ssh_port}
)
wait_for_ssh() {
retries=0
retry_count=50
echo "waiting for machine to come up."
echo "tail -F ${qemu_dir}/console.log for progress."
while true; do
set +e
ssh -q ${ssh_args[*]} -o ConnectTimeout=1 qemu@localhost "echo done"
error=$?
set -e
if [[ $error == 0 ]]; then
return 0
fi
if [[ ${retries} == ${retry_count} ]]; then
echo "timeout"
return 1
fi
echo -n "."
((++retries))
sleep 10
done
}
run_ssh() {
ssh -q ${ssh_args[*]} qemu@localhost "$@"
}
run_scp() {
scp -q ${shared_args[*]} -P ${ssh_port} "$@"
}
rsync_args=(
--exclude '.qemu'
--exclude '.git'
)
run_rsync() {
rsync -avz -e "ssh ${ssh_args[*]}" ${rsync_args[*]} "$@"
}
init_machine() {
run_ssh "sudo apt-get -y install --no-install-recommends make gcc autoconf libtool automake"
}
init_machine_and_copy_source() {
init_machine
run_ssh "rm -fr ~/gf-complete; mkdir -p ~/gf-complete"
run_rsync ${script_dir}/.. qemu@localhost:gf-complete
run_ssh "cd ~/gf-complete && ./autogen.sh"
}
run_test() {
arch=$1; shift
cpu=$1; shift
test=$1; shift
run_ssh "~/gf-complete/tools/test_simd.sh ${test}"
run_scp qemu@localhost:gf-complete/tools/test_simd.results ${script_dir}/test_simd_${test}_${arch}_${cpu}.results
}
# this test run the unit tests on the machine using "make check"
run_test_simd_basic() {
arch=$1; shift
cpu=$1; shift
failed=0
echo "=====starting qemu machine $arch $cpu"
start_qemu $arch $cpu
init_machine_and_copy_source
echo "=====running compile test"
{ run_test $arch $cpu "compile" && echo "SUCCESS"; } || { echo "FAILED"; ((++failed)); }
echo "=====running unit test"
{ run_test $arch $cpu "unit" && echo "SUCCESS"; } || { echo "FAILED"; ((++failed)); }
echo "=====running functions test"
{ run_test $arch $cpu "functions" && echo "SUCCESS"; } || { echo "FAILED"; ((++failed)); }
stop_qemu
return ${failed}
}
run_all_tests() {
failed=0
echo ============================
echo =====running x86_64 tests
# NOTE: Broadwell has all the supported SIMD instructions
{ run_test_simd_basic "x86_64" "Broadwell" && echo "SUCCESS"; } || { echo "FAILED"; ((++failed)); }
echo ============================
echo =====running aarch64 tests
# NOTE: cortex-a57 has ASIMD support
{ run_test_simd_basic "aarch64" "cortex-a57" && echo "SUCCESS"; } || { echo "FAILED"; ((++failed)); }
echo ============================
echo =====running arm tests
# NOTE: cortex-a15 has NEON support
{ run_test_simd_basic "arm" "cortex-a15" && echo "SUCCESS"; } || { echo "FAILED"; ((++failed)); }
return ${failed}
}
run_all_tests
exit $?
|
