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package grace
import (
"os"
"runtime"
"runtime/pprof"
"github.com/seaweedfs/seaweedfs/weed/glog"
)
func SetupProfiling(cpuProfile, memProfile string) {
if cpuProfile != "" {
f, err := os.Create(cpuProfile)
if err != nil {
glog.Fatal(err)
}
runtime.SetBlockProfileRate(1)
runtime.SetMutexProfileFraction(1)
pprof.StartCPUProfile(f)
OnInterrupt(func() {
pprof.StopCPUProfile()
// write block pprof
blockF, err := os.Create(cpuProfile + ".block")
if err != nil {
return
}
p := pprof.Lookup("block")
p.WriteTo(blockF, 0)
blockF.Close()
// write mutex pprof
mutexF, err := os.Create(cpuProfile + ".mutex")
if err != nil {
return
}
p = pprof.Lookup("mutex")
p.WriteTo(mutexF, 0)
mutexF.Close()
})
}
if memProfile != "" {
runtime.MemProfileRate = 1
f, err := os.Create(memProfile)
if err != nil {
glog.Fatal(err)
}
OnInterrupt(func() {
pprof.WriteHeapProfile(f)
f.Close()
})
}
}
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