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e2e: topomgr: extend tests to all the policies

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Per https://github.com/kubernetes/enhancements/blob/master/keps/sig-node/0035-20190130-topology-manager.md#multi-numa-systems-tests
we validate only the results for single-numa node policy,
because the is no a simple and reliable way to validate
the allocation performed by the other policies.

Signed-off-by: Francesco Romani <fromani@redhat.com>
This commit is contained in:
Francesco Romani 2020-02-18 19:26:01 +01:00
parent a249b93687
commit 64904d0ab8
2 changed files with 35 additions and 24 deletions
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1
test/e2e_node/numa_alignment.go
View File

@ -180,6 +180,7 @@ func makeEnvMap(logs string) (map[string]string, error) {
type testEnvInfo struct {
numaNodes int
sriovResourceName string
policy string
}
func containerWantsDevices(cnt *v1.Container, envInfo *testEnvInfo) bool {

58
test/e2e_node/topology_manager_test.go
View File

@ -568,8 +568,12 @@ func runTopologyManagerPositiveTest(f *framework.Framework, numPods int, ctnAttr
pods = append(pods, pod)
}
for podID := 0; podID < numPods; podID++ {
validatePodAlignment(f, pods[podID], envInfo)
// per https://github.com/kubernetes/enhancements/blob/master/keps/sig-node/0035-20190130-topology-manager.md#multi-numa-systems-tests
// we can do a menaingful validation only when using the single-numa node policy
if envInfo.policy == topologymanager.PolicySingleNumaNode {
for podID := 0; podID < numPods; podID++ {
validatePodAlignment(f, pods[podID], envInfo)
}
}
for podID := 0; podID < numPods; podID++ {
@ -703,7 +707,7 @@ func teardownSRIOVConfigOrFail(f *framework.Framework, sd *sriovData) {
framework.ExpectNoError(err)
}
func runTopologyManagerNodeAlignmentSuiteTests(f *framework.Framework, configMap *v1.ConfigMap, reservedSystemCPUs string, numaNodes, coreCount int) {
func runTopologyManagerNodeAlignmentSuiteTests(f *framework.Framework, configMap *v1.ConfigMap, reservedSystemCPUs string, numaNodes, coreCount int, policy string) {
threadsPerCore := 1
if isHTEnabled() {
threadsPerCore = 2
@ -713,6 +717,7 @@ func runTopologyManagerNodeAlignmentSuiteTests(f *framework.Framework, configMap
envInfo := &testEnvInfo{
numaNodes: numaNodes,
sriovResourceName: sd.resourceName,
policy: policy,
}
// could have been a loop, we unroll it to explain the testcases
@ -859,22 +864,24 @@ func runTopologyManagerNodeAlignmentSuiteTests(f *framework.Framework, configMap
runTopologyManagerPositiveTest(f, 2, ctnAttrs, envInfo)
}
// overflow NUMA node capacity: cores
numCores := 1 + (threadsPerCore * coreCount)
excessCoresReq := fmt.Sprintf("%dm", numCores*1000)
ginkgo.By(fmt.Sprintf("Trying to admit a guaranteed pods, with %d cores, 1 %s device - and it should be rejected", numCores, sd.resourceName))
ctnAttrs = []tmCtnAttribute{
{
ctnName: "gu-container",
cpuRequest: excessCoresReq,
cpuLimit: excessCoresReq,
deviceName: sd.resourceName,
deviceRequest: "1",
deviceLimit: "1",
},
// this is the only policy that can guarantee reliable rejects
if policy == topologymanager.PolicySingleNumaNode {
// overflow NUMA node capacity: cores
numCores := 1 + (threadsPerCore * coreCount)
excessCoresReq := fmt.Sprintf("%dm", numCores*1000)
ginkgo.By(fmt.Sprintf("Trying to admit a guaranteed pods, with %d cores, 1 %s device - and it should be rejected", numCores, sd.resourceName))
ctnAttrs = []tmCtnAttribute{
{
ctnName: "gu-container",
cpuRequest: excessCoresReq,
cpuLimit: excessCoresReq,
deviceName: sd.resourceName,
deviceRequest: "1",
deviceLimit: "1",
},
}
runTopologyManagerNegativeTest(f, 1, ctnAttrs, envInfo)
}
runTopologyManagerNegativeTest(f, 1, ctnAttrs, envInfo)
teardownSRIOVConfigOrFail(f, sd)
}
@ -927,15 +934,18 @@ func runTopologyManagerTests(f *framework.Framework) {
oldCfg, err = getCurrentKubeletConfig()
framework.ExpectNoError(err)
policy := topologymanager.PolicySingleNumaNode
var policies = []string{topologymanager.PolicySingleNumaNode, topologymanager.PolicyRestricted,
topologymanager.PolicyBestEffort, topologymanager.PolicyNone}
// Configure Topology Manager
ginkgo.By(fmt.Sprintf("by configuring Topology Manager policy to %s", policy))
framework.Logf("Configuring topology Manager policy to %s", policy)
for _, policy := range policies {
// Configure Topology Manager
ginkgo.By(fmt.Sprintf("by configuring Topology Manager policy to %s", policy))
framework.Logf("Configuring topology Manager policy to %s", policy)
reservedSystemCPUs := configureTopologyManagerInKubelet(f, oldCfg, policy, configMap, numaNodes)
reservedSystemCPUs := configureTopologyManagerInKubelet(f, oldCfg, policy, configMap, numaNodes)
runTopologyManagerNodeAlignmentSuiteTests(f, configMap, reservedSystemCPUs, numaNodes, coreCount)
runTopologyManagerNodeAlignmentSuiteTests(f, configMap, reservedSystemCPUs, numaNodes, coreCount, policy)
}
// restore kubelet config
setOldKubeletConfig(f, oldCfg)