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