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Add CPU profiling option

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This commit is contained in:
Geoff Bourne 2019-05-04 10:53:05 -05:00
parent 96399cfd40
commit 6cdc1e06ac
1 changed files with 16 additions and 0 deletions
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16
cmd/mc-router/main.go
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@ -9,6 +9,7 @@ import (
"net"
"os"
"os/signal"
"runtime/pprof"
"strconv"
"strings"
)
@ -20,6 +21,7 @@ var (
versionFlag = flag.Bool("version", false, "Output version and exit")
kubeConfigFile = flag.String("kube-config", "", "The path to a kubernetes configuration file")
inKubeCluster = flag.Bool("in-kube-cluster", false, "Use in-cluster kubernetes config")
cpuProfile = flag.String("cpu-profile", "", "Enables CPU profiling and writes to given path")
)
var (
@ -40,6 +42,20 @@ func main() {
os.Exit(0)
}
if *cpuProfile != "" {
cpuProfileFile, err := os.Create(*cpuProfile)
if err != nil {
logrus.WithError(err).Fatal("trying to create cpu profile file")
}
logrus.Info("Starting cpu profiling")
err = pprof.StartCPUProfile(cpuProfileFile)
if err != nil {
logrus.WithError(err).Fatal("trying to start cpu profile")
}
defer pprof.StopCPUProfile()
}
ctx, cancel := context.WithCancel(context.Background())
c := make(chan os.Signal, 1)