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package profile_test
import (
"flag"
"os"
"github.com/pkg/profile"
)
func ExampleStart() {
// start a simple CPU profile and register
// a defer to Stop (flush) the profiling data.
defer profile.Start().Stop()
}
func ExampleCPUProfile() {
// CPU profiling is the default profiling mode, but you can specify it
// explicitly for completeness.
defer profile.Start(profile.CPUProfile).Stop()
}
func ExampleMemProfile() {
// use memory profiling, rather than the default cpu profiling.
defer profile.Start(profile.MemProfile).Stop()
}
func ExampleMemProfileRate() {
// use memory profiling with custom rate.
defer profile.Start(profile.MemProfileRate(2048)).Stop()
}
func ExampleProfilePath() {
// set the location that the profile will be written to
defer profile.Start(profile.ProfilePath(os.Getenv("HOME"))).Stop()
}
func ExampleNoShutdownHook() {
// disable the automatic shutdown hook.
defer profile.Start(profile.NoShutdownHook).Stop()
}
func ExampleStart_withFlags() {
// use the flags package to selectively enable profiling.
mode := flag.String("profile.mode", "", "enable profiling mode, one of [cpu, mem, mutex, block]")
flag.Parse()
switch *mode {
case "cpu":
defer profile.Start(profile.CPUProfile).Stop()
case "mem":
defer profile.Start(profile.MemProfile).Stop()
case "mutex":
defer profile.Start(profile.MutexProfile).Stop()
case "block":
defer profile.Start(profile.BlockProfile).Stop()
default:
// do nothing
}
}
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