jschoubben
3a84044ece
With THP 'always' journald's mmapped journal files sit in 2 MiB folios, so each small journal write dirties and writes back 2 MiB; on the control node that saturated the root mirror holding the bus store and the store, and the controller lost its lease. The module sets the mode from a per-machine setting (default always, the kernel's own, so assigning it changes nothing until a machine sets madvise), verifies it took, rotates the journal once so new files are mapped under the new mode, gives back what it found when stopped, and serves kernel_huge_pages to measure file_thp per unit.
80 lines
2.0 KiB
Go
80 lines
2.0 KiB
Go
package main
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import (
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"encoding/json"
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"os"
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"testing"
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)
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type resource map[string]any
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type manifestShape struct {
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Module string `json:"module"`
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Capabilities []string `json:"capabilities"`
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Settings map[string]map[string]any `json:"settings"`
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Tools []string `json:"tools"`
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Resources []resource `json:"resources"`
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Build struct {
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Artifacts []map[string]any `json:"artifacts"`
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} `json:"build"`
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}
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func manifest(t *testing.T) manifestShape {
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t.Helper()
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raw, err := os.ReadFile("../../module.json")
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if err != nil {
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t.Fatal(err)
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}
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var m manifestShape
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if err := json.Unmarshal(raw, &m); err != nil {
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t.Fatal(err)
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}
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return m
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}
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func (m manifestShape) resource(t *testing.T, id string) resource {
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t.Helper()
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for _, r := range m.Resources {
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if r["id"] == id {
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return r
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}
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}
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t.Fatalf("no resource %s", id)
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return nil
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}
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// TestToolsAreTheManifests holds the served tools and the manifest's list to one another, and the
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// bundle to the shape the builder compiles and the runtime loads.
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func TestToolsAreTheManifests(t *testing.T) {
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m := manifest(t)
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names := map[string]bool{}
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for _, tool := range tools(&Machine{Root: t.TempDir()}) {
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if names[tool.Name] {
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t.Errorf("%s is served twice", tool.Name)
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}
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names[tool.Name] = true
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}
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for _, want := range m.Tools {
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if !names[want] {
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t.Errorf("the manifest lists %s and the bundle does not serve it", want)
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}
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delete(names, want)
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}
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if len(names) != 0 {
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t.Errorf("served and not listed: %v", names)
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}
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var tools map[string]any
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for _, a := range m.Build.Artifacts {
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if a["name"] == "tools" {
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tools = a
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}
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}
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if tools == nil || tools["kind"] != "bundle" || tools["language"] != "go" || tools["system"] != "arch" ||
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tools["from"] != "cmd/"+binaryName || tools["binary"] != binaryName {
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t.Fatalf("the tools artifact: %v", tools)
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}
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if loads, _ := tools["loads"].([]any); len(loads) != 1 || loads[0] != binaryName {
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t.Fatalf("loads: %v", tools["loads"])
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}
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}
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