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Go uygulamanızda cpu, bellek ve goroutine kullanımının nasıl olduğunu bilmek istiyorsanız runtime bileşenini kullanabilirsiniz. Uygulamanızın sistem ihtiyacını arttırmak veya azaltmak için sistem kaynaklarının nasıl kullanıldığını bilmek her zaman iyidir. Ayrıca uygulamadaki olası hataların ayıklanmasına da yardımcı olur. Ancak, bu özelliği gerçek ortamda kullanmamanızı öneririm çünkü, bu özellikte sistem kaynaklarını kullanmak zorundadır. Eğer mecbursanız, bir engelleme olmayacak şekilde verileri bir tür ileti kuyruğuna gönderebilirsiniz. Ayrıca, verileri saklayarak görselleştirebilirsiniz. High Performance Go Workshop başlığı altındaki çok değerli olan yazıyı da okumanızı tavsiye ederim.


Örnek


package main

import (
"time"

"internal/monitor"
)

func main() {
go monitor.System()

// Simulate never ending client requests.
for {
// Pretend like each request task (goroutine) takes 10 seconds.
go func() {
time.Sleep(10 * time.Second)
}()

// Wait 1 second before creating a new request.
time.Sleep(time.Second)
}
}

package monitor

import (
"log"
"runtime"
"time"
)

// Print system resource usage every 2 seconds.
func System() {
mem := &runtime.MemStats{}

for {
cpu := runtime.NumCPU()
log.Println("CPU:", cpu)

rot := runtime.NumGoroutine()
log.Println("Goroutine:", rot)

// Byte
runtime.ReadMemStats(mem)
log.Println("Memory:", mem.Alloc)

time.Sleep(2 * time.Second)
log.Println("-------")
}
}

Test


2020/04/25 21:32:44 CPU: 4
2020/04/25 21:32:44 Goroutine: 3
2020/04/25 21:32:44 Memory: 87096
2020/04/25 21:32:46 -------
2020/04/25 21:32:46 CPU: 4
2020/04/25 21:32:46 Goroutine: 4
2020/04/25 21:32:46 Memory: 88272
2020/04/25 21:32:48 -------
2020/04/25 21:32:48 CPU: 4
2020/04/25 21:32:48 Goroutine: 6
2020/04/25 21:32:48 Memory: 91688
2020/04/25 21:32:50 -------
2020/04/25 21:32:50 CPU: 4
2020/04/25 21:32:50 Goroutine: 8
2020/04/25 21:32:50 Memory: 92712
2020/04/25 21:32:52 -------
2020/04/25 21:32:52 CPU: 4
2020/04/25 21:32:52 Goroutine: 10
2020/04/25 21:32:52 Memory: 93944
2020/04/25 21:32:54 -------
2020/04/25 21:32:54 CPU: 4
2020/04/25 21:32:54 Goroutine: 11
2020/04/25 21:32:54 Memory: 94984
2020/04/25 21:32:56 -------
2020/04/25 21:32:56 CPU: 4
2020/04/25 21:32:56 Goroutine: 11
2020/04/25 21:32:56 Memory: 95736
2020/04/25 21:32:58 -------
2020/04/25 21:32:58 CPU: 4
2020/04/25 21:32:58 Goroutine: 11
2020/04/25 21:32:58 Memory: 96344
2020/04/25 21:33:00 -------
2020/04/25 21:33:00 CPU: 4
2020/04/25 21:33:00 Goroutine: 11
2020/04/25 21:33:00 Memory: 96552
2020/04/25 21:33:02 -------
2020/04/25 21:33:02 CPU: 4
2020/04/25 21:33:02 Goroutine: 11
2020/04/25 21:33:02 Memory: 96760
2020/04/25 21:33:04 -------
2020/04/25 21:33:04 CPU: 4
2020/04/25 21:33:04 Goroutine: 11
2020/04/25 21:33:04 Memory: 96968
2020/04/25 21:33:06 -------
2020/04/25 21:33:06 CPU: 4
2020/04/25 21:33:06 Goroutine: 12
2020/04/25 21:33:06 Memory: 97176
2020/04/25 21:33:08 -------
2020/04/25 21:33:08 CPU: 4
2020/04/25 21:33:08 Goroutine: 12
2020/04/25 21:33:08 Memory: 97384
2020/04/25 21:33:10 -------
2020/04/25 21:33:10 CPU: 4
2020/04/25 21:33:10 Goroutine: 12
2020/04/25 21:33:10 Memory: 97592
2020/04/25 21:33:12 -------
2020/04/25 21:33:12 CPU: 4
2020/04/25 21:33:12 Goroutine: 12
2020/04/25 21:33:12 Memory: 97800
2020/04/25 21:33:14 -------
2020/04/25 21:33:14 CPU: 4
2020/04/25 21:33:14 Goroutine: 12
2020/04/25 21:33:14 Memory: 98776
2020/04/25 21:33:16 -------
2020/04/25 21:33:16 CPU: 4
2020/04/25 21:33:16 Goroutine: 12
2020/04/25 21:33:16 Memory: 99000
2020/04/25 21:33:19 -------
2020/04/25 21:33:19 CPU: 4
2020/04/25 21:33:19 Goroutine: 12
2020/04/25 21:33:19 Memory: 99208
2020/04/25 21:33:21 -------
2020/04/25 21:33:21 CPU: 4
2020/04/25 21:33:21 Goroutine: 12
2020/04/25 21:33:21 Memory: 99432
2020/04/25 21:33:23 -------
2020/04/25 21:33:23 CPU: 4
2020/04/25 21:33:23 Goroutine: 12
2020/04/25 21:33:23 Memory: 99640
2020/04/25 21:33:25 -------
2020/04/25 21:33:25 CPU: 4
2020/04/25 21:33:25 Goroutine: 12
2020/04/25 21:33:25 Memory: 99864
2020/04/25 21:33:27 -------
2020/04/25 21:33:27 CPU: 4
2020/04/25 21:33:27 Goroutine: 12
2020/04/25 21:33:27 Memory: 100072
2020/04/25 21:33:29 -------
2020/04/25 21:33:29 CPU: 4
2020/04/25 21:33:29 Goroutine: 12
2020/04/25 21:33:29 Memory: 100280
2020/04/25 21:33:31 -------

...