63 lines
1.3 KiB
Go
63 lines
1.3 KiB
Go
package main
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import (
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"expvar"
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"flag"
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"github.com/yvasiyarov/gorelic"
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"io"
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"log"
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"math/rand"
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"net/http"
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"runtime"
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"time"
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)
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var newrelicLicense = flag.String("newrelic-license", "", "Newrelic license")
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var numCalls = expvar.NewInt("num_calls")
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func allocateAndSum(arraySize int) int {
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arr := make([]int, arraySize, arraySize)
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for i := range arr {
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arr[i] = rand.Int()
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}
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time.Sleep(time.Duration(rand.Intn(3000)) * time.Millisecond)
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result := 0
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for _, v := range arr {
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result += v
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}
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//log.Printf("Array size is: %d, sum is: %d\n", arraySize, result)
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return result
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}
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func doSomeJob(numRoutines int) {
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for i := 0; i < numRoutines; i++ {
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go allocateAndSum(rand.Intn(1024) * 1024)
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}
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log.Printf("All %d routines started\n", numRoutines)
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time.Sleep(1000 * time.Millisecond)
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runtime.GC()
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}
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func helloServer(w http.ResponseWriter, req *http.Request) {
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doSomeJob(5)
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io.WriteString(w, "Did some work")
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}
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func main() {
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flag.Parse()
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if *newrelicLicense == "" {
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log.Fatalf("Please, pass a valid newrelic license key.\n Use --help to get more information about available options\n")
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}
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agent := gorelic.NewAgent()
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agent.Verbose = true
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agent.CollectHTTPStat = true
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agent.NewrelicLicense = *newrelicLicense
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agent.Run()
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http.HandleFunc("/", agent.WrapHTTPHandlerFunc(helloServer))
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http.ListenAndServe(":8080", nil)
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}
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