mirror of
https://github.com/kata-containers/kata-containers.git
synced 2025-06-20 04:34:32 +00:00
0626d7182a
The changes done are:
* cpu/cpu.shares was replaced by cpu.weight
* The weight, according to our reference[0], is calculated by:
weight = (1 + ((request - 2) * 9999) / 262142)
* cpu/cpu.cfs_quota_us & cpu/cpu.cfs_period_us were replaced by cpu.max,
where quota and period are written together (in this order)
[0]: https://github.com/containers/crun/blob/main/crun.1.md#cgroup-v2
Signed-off-by: Fabiano Fidêncio <fabiano@fidencio.org>
112 lines
4.1 KiB
Bash
112 lines
4.1 KiB
Bash
#!/usr/bin/env bats
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#
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# Copyright (c) 2018 Intel Corporation
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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load "${BATS_TEST_DIRNAME}/../../common.bash"
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load "${BATS_TEST_DIRNAME}/tests_common.sh"
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setup() {
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[ "${KATA_HYPERVISOR}" == "firecracker" ] && skip "test not working see: ${fc_limitations}"
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[ "${KATA_HYPERVISOR}" == "fc" ] && skip "test not working see: ${fc_limitations}"
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[ "${KATA_HYPERVISOR}" == "dragonball" ] && skip "test not working see: ${dragonball_limitations}"
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[ "${KATA_HYPERVISOR}" == "cloud-hypervisor" ] && skip "https://github.com/kata-containers/kata-containers/issues/9039"
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[ "${KATA_HYPERVISOR}" == "qemu-runtime-rs" ] && skip "Requires CPU hotplug which isn't supported on ${KATA_HYPERVISOR} yet"
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( [ "${KATA_HYPERVISOR}" == "qemu-tdx" ] || [ "${KATA_HYPERVISOR}" == "qemu-snp" ] || \
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[ "${KATA_HYPERVISOR}" == "qemu-sev" ] || [ "${KATA_HYPERVISOR}" == "qemu-se" ] ) \
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&& skip "TEEs do not support memory / CPU hotplug"
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pod_name="constraints-cpu-test"
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container_name="first-cpu-container"
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weightsyspath="/sys/fs/cgroup/cpu.weight"
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maxsyspath="/sys/fs/cgroup/cpu.max"
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total_cpus=2
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# https://github.com/containers/crun/blob/main/crun.1.md#cgroup-v2
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# The weight is calculated by the:
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# weight = (1 + ((request - 2) * 9999) / 262142)
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total_requests=20
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total_cpu_container=1
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get_pod_config_dir
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yaml_file="${pod_config_dir}/pod-cpu.yaml"
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# Add policy to the yaml file
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policy_settings_dir="$(create_tmp_policy_settings_dir "${pod_config_dir}")"
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num_cpus_cmd="grep -e '^processor' /proc/cpuinfo |wc -l"
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exec_num_cpus_cmd=(sh -c "${num_cpus_cmd}")
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add_exec_to_policy_settings "${policy_settings_dir}" "${exec_num_cpus_cmd[@]}"
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maxsyspath_cmd="cat ${maxsyspath}"
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exec_maxsyspath_cmd=(sh -c "${maxsyspath_cmd}")
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add_exec_to_policy_settings "${policy_settings_dir}" "${exec_maxsyspath_cmd[@]}"
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weightsyspath_cmd="cat ${weightsyspath}"
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exec_weightsyspath_cmd=(sh -c "${weightsyspath_cmd}")
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add_exec_to_policy_settings "${policy_settings_dir}" "${exec_weightsyspath_cmd[@]}"
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add_requests_to_policy_settings "${policy_settings_dir}" "ReadStreamRequest"
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auto_generate_policy "${policy_settings_dir}" "${yaml_file}"
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}
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@test "Check CPU constraints" {
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# Create the pod
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kubectl create -f "${yaml_file}"
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# Check pod creation
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kubectl wait --for=condition=Ready --timeout=$timeout pod "$pod_name"
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retries="10"
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# Check the total of cpus
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for _ in $(seq 1 "$retries"); do
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# Get number of cpus
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total_cpus_container=$(kubectl exec pod/"$pod_name" -c "$container_name" \
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-- "${exec_num_cpus_cmd[@]}")
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# Verify number of cpus
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[ "$total_cpus_container" -le "$total_cpus" ]
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[ "$total_cpus_container" -eq "$total_cpus" ] && break
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sleep 1
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done
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[ "$total_cpus_container" -eq "$total_cpus" ]
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# Check the total of requests
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total_requests_container=$(kubectl exec $pod_name -c $container_name \
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-- "${exec_weightsyspath_cmd[@]}")
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info "total_requests_container = $total_requests_container"
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[ "$total_requests_container" -eq "$total_requests" ]
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# Check the cpus inside the container
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read total_cpu_quota total_cpu_period <<< $(kubectl exec $pod_name -c $container_name \
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-- "${exec_maxsyspath_cmd[@]}")
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division_quota_period=$(echo $((total_cpu_quota/total_cpu_period)))
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[ "$division_quota_period" -eq "$total_cpu_container" ]
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}
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teardown() {
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[ "${KATA_HYPERVISOR}" == "firecracker" ] && skip "test not working see: ${fc_limitations}"
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[ "${KATA_HYPERVISOR}" == "fc" ] && skip "test not working see: ${fc_limitations}"
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[ "${KATA_HYPERVISOR}" == "dragonball" ] && skip "test not working see: ${dragonball_limitations}"
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[ "${KATA_HYPERVISOR}" == "qemu-runtime-rs" ] && skip "Requires CPU hotplug which isn't supported on ${KATA_HYPERVISOR} yet"
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[ "${KATA_HYPERVISOR}" == "cloud-hypervisor" ] && skip "https://github.com/kata-containers/kata-containers/issues/9039"
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( [ "${KATA_HYPERVISOR}" == "qemu-tdx" ] || [ "${KATA_HYPERVISOR}" == "qemu-snp" ] || \
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[ "${KATA_HYPERVISOR}" == "qemu-sev" ] || [ "${KATA_HYPERVISOR}" == "qemu-se" ] ) \
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&& skip "TEEs do not support memory / CPU hotplug"
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# Debugging information
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kubectl describe "pod/$pod_name"
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kubectl delete pod "$pod_name"
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delete_tmp_policy_settings_dir "${policy_settings_dir}"
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}
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