[QE]monitor cpu usage in e2e test case #4977
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| package testsuite | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
| "sync" | ||
| "time" | ||
|
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| "github.com/crc-org/crc/v2/test/extended/util" | ||
| "github.com/shirou/gopsutil/v4/cpu" | ||
| ) | ||
|
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| type Monitor struct { | ||
| cancelFunc context.CancelFunc | ||
| isRunning bool | ||
| mu sync.Mutex | ||
| wg sync.WaitGroup | ||
| interval time.Duration | ||
| } | ||
|
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| func NewMonitor(interval time.Duration) *Monitor { | ||
| return &Monitor{ | ||
| interval: interval, | ||
| } | ||
| } | ||
|
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| func (m *Monitor) Start() error { | ||
| m.mu.Lock() | ||
| defer m.mu.Unlock() | ||
|
|
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| if m.isRunning { | ||
| return fmt.Errorf("The collector is running") | ||
| } | ||
|
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| fmt.Printf("Attempt to start CPU collector, interval: %s\n", m.interval) | ||
|
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| // create a context.WithCancel | ||
| ctx, cancel := context.WithCancel(context.Background()) | ||
| m.cancelFunc = cancel | ||
| m.isRunning = true | ||
|
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| // start goroutine | ||
| m.wg.Add(1) | ||
| go m.collectLoop(ctx) | ||
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| fmt.Println("CPU collector has been successfully started") | ||
| return nil | ||
| } | ||
|
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| func (m *Monitor) Stop() error { | ||
| m.mu.Lock() | ||
| defer m.mu.Unlock() | ||
|
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| if !m.isRunning { | ||
| return fmt.Errorf("The collector is not running") | ||
| } | ||
| if m.cancelFunc != nil { | ||
| m.cancelFunc() | ||
| } | ||
| m.isRunning = false | ||
| m.wg.Wait() | ||
| fmt.Println("CPU collector has sent a stop signal") | ||
| // may need wait a while to stop | ||
| return nil | ||
| } | ||
|
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| func (m *Monitor) collectLoop(ctx context.Context) { | ||
| defer m.wg.Done() | ||
|
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| fmt.Println("--> collect goroutine start...") | ||
| calcInterval := m.interval | ||
|
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| for { | ||
| // 1. check Context whether be canceled | ||
| select { | ||
| case <-ctx.Done(): | ||
| fmt.Println("<-- collect goroutine receive stop signal") | ||
| return // exit goroutine | ||
| default: | ||
| // continue collect data | ||
| } | ||
|
|
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| // 2. collect data | ||
| totalPercent, err := cpu.Percent(calcInterval, false) | ||
| // no need to sleep, calcInterval automatically do it | ||
|
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| if err != nil { | ||
| fmt.Printf("Error: fail to collect CPU data: %v\n", err) | ||
| time.Sleep(1 * time.Second) | ||
| continue | ||
| } | ||
|
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| if len(totalPercent) > 0 { | ||
| data := fmt.Sprintf("[%s], cpu percent: %.2f%%\n", | ||
| time.Now().Format("15:04:05"), totalPercent[0]) | ||
| wd, err := os.Getwd() | ||
| if err != nil { | ||
| fmt.Printf("Error: failed to get working directory: %v\n", err) | ||
| continue | ||
| } | ||
| file := filepath.Join(wd, "../test-results/cpu-consume.txt") | ||
|
There was a problem hiding this comment. I'm wondering about this hardcoded path. Won't new calls overwrite the old data? (and I'm surprized by the initial
Contributor
Author
There was a problem hiding this comment. @kpouget, all test results will be uploaded to S3 in the test pipeline, and the entire test folder will be deleted on the bare metal. So there's no need to worry about overwriting old data. |
||
| err = util.WriteToFile(data, file) | ||
| if err != nil { | ||
| fmt.Printf("Error: fail to write to %s: %v\n", file, err) | ||
| } | ||
| } | ||
| } | ||
| } | ||
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