122 lines
3.6 KiB
Go
122 lines
3.6 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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//go:build !darwin || !arm64 || !cgo
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package fingerprint
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import (
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"strconv"
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"testing"
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"github.com/hashicorp/nomad/ci"
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"github.com/hashicorp/nomad/client/config"
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"github.com/hashicorp/nomad/client/lib/cgutil"
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"github.com/hashicorp/nomad/helper/testlog"
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"github.com/hashicorp/nomad/nomad/structs"
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"github.com/shoenig/test/must"
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)
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func TestCPUFingerprint_Classic(t *testing.T) {
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ci.Parallel(t)
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logger := testlog.HCLogger(t)
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// create cpuset manager so we can ensure cgroup tree is correct
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mgr := cgutil.CreateCPUSetManager("", nil, logger)
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mgr.Init()
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// create the fingerprinter
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f := NewCPUFingerprint(logger)
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node := &structs.Node{Attributes: make(map[string]string)}
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request := &FingerprintRequest{Config: &config.Config{}, Node: node}
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var response FingerprintResponse
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// run the fingerprinter
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err := f.Fingerprint(request, &response)
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must.NoError(t, err)
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must.True(t, response.Detected)
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attributes := response.Attributes
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must.NotNil(t, attributes)
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must.MapContainsKey(t, attributes, "cpu.numcores")
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must.MapContainsKey(t, attributes, "cpu.modelname")
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must.MapContainsKey(t, attributes, "cpu.frequency")
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must.MapContainsKey(t, attributes, "cpu.totalcompute")
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must.Positive(t, response.Resources.CPU)
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must.Positive(t, response.NodeResources.Cpu.CpuShares)
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must.Positive(t, response.NodeResources.Cpu.SharesPerCore())
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must.SliceNotEmpty(t, response.NodeResources.Cpu.ReservableCpuCores)
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// asymetric core detection currently only works with apple silicon
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must.MapNotContainsKey(t, attributes, "cpu.numcores.power")
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must.MapNotContainsKey(t, attributes, "cpu.numcores.efficiency")
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}
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// TestCPUFingerprint_OverrideCompute asserts that setting cpu_total_compute in
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// the client config overrides the detected CPU freq (if any).
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func TestCPUFingerprint_OverrideCompute(t *testing.T) {
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ci.Parallel(t)
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f := NewCPUFingerprint(testlog.HCLogger(t))
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node := &structs.Node{
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Attributes: make(map[string]string),
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}
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cfg := &config.Config{
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ReservableCores: []uint16{0, 1, 2},
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}
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var originalCPU int
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{
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request := &FingerprintRequest{Config: cfg, Node: node}
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var response FingerprintResponse
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err := f.Fingerprint(request, &response)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if !response.Detected {
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t.Fatalf("expected response to be applicable")
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}
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if attr := response.Attributes["cpu.reservablecores"]; attr != "3" {
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t.Fatalf("expected cpu.reservablecores == 3 but found %s", attr)
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}
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if response.Resources.CPU == 0 {
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t.Fatalf("expected fingerprint of cpu of but found 0")
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}
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originalCPU = response.Resources.CPU
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}
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{
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// Override it with a setting
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cfg.CpuCompute = originalCPU + 123
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// Make sure the Fingerprinter applies the override to the node resources
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request := &FingerprintRequest{Config: cfg, Node: node}
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var response FingerprintResponse
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err := f.Fingerprint(request, &response)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// COMPAT(0.10): Remove in 0.10
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if response.Resources.CPU != cfg.CpuCompute {
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t.Fatalf("expected override cpu of %d but found %d", cfg.CpuCompute, response.Resources.CPU)
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}
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if response.NodeResources.Cpu.CpuShares != int64(cfg.CpuCompute) {
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t.Fatalf("expected override cpu of %d but found %d", cfg.CpuCompute, response.NodeResources.Cpu.CpuShares)
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}
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if response.Attributes["cpu.totalcompute"] != strconv.Itoa(cfg.CpuCompute) {
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t.Fatalf("expected override cpu.totalcompute of %d but found %s", cfg.CpuCompute, response.Attributes["cpu.totalcompute"])
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}
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if attr := response.Attributes["cpu.reservablecores"]; attr != "3" {
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t.Fatalf("expected cpu.reservablecores == 3 but found %s", attr)
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}
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}
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}
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