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dcrwallet: Add --cpuprofile option #2195

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merged 1 commit into from
Dec 1, 2022
Merged

dcrwallet: Add --cpuprofile option #2195

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1 change: 1 addition & 0 deletions config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -91,6 +91,7 @@ type config struct {
NoFileLogging bool `long:"nofilelogging" description:"Disable file logging"`
Profile []string `long:"profile" description:"Enable HTTP profiling this interface/port"`
MemProfile string `long:"memprofile" description:"Write mem profile to the specified file"`
CPUProfile string `long:"cpuprofile" description:"Write cpu profile to the specified file"`

// Wallet options
WalletPass string `long:"walletpass" default-mask:"-" description:"Public wallet password; required when created with one"`
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23 changes: 19 additions & 4 deletions dcrwallet.go
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Original file line number Diff line number Diff line change
Expand Up @@ -128,6 +128,23 @@ func run(ctx context.Context) error {
}
}

// Write cpu profile if requested.
if cfg.CPUProfile != "" {
if done(ctx) {
return ctx.Err()
}

f, err := os.Create(cfg.CPUProfile)
if err != nil {
log.Errorf("Unable to create cpu profile: %v", err.Error())
return err

}
pprof.StartCPUProfile(f)
defer f.Close()
defer pprof.StopCPUProfile()
}

// Write mem profile if requested.
if cfg.MemProfile != "" {
if done(ctx) {
Expand All @@ -136,12 +153,10 @@ func run(ctx context.Context) error {

f, err := os.Create(cfg.MemProfile)
if err != nil {
log.Errorf("Unable to create cpu profile: %v", err)
log.Errorf("Unable to create mem profile: %v", err)
return err
}
timer := time.NewTimer(time.Minute * 5) // 5 minutes
go func() {
<-timer.C
defer func() {
pprof.WriteHeapProfile(f)
f.Close()
}()
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