opt: improve logx performance (#3371)

core/logx/logs.go

@@ -68,23 +68,31 @@ func Close() error {
 
 // Debug writes v into access log.
 func Debug(v ...any) {
+	if shallLog(DebugLevel) {
 		writeDebug(fmt.Sprint(v...))
 	}
+}
 
 // Debugf writes v with format into access log.
 func Debugf(format string, v ...any) {
+	if shallLog(DebugLevel) {
 		writeDebug(fmt.Sprintf(format, v...))
 	}
+}
 
 // Debugv writes v into access log with json content.
 func Debugv(v any) {
+	if shallLog(DebugLevel) {
 		writeDebug(v)
 	}
+}
 
 // Debugw writes msg along with fields into access log.
 func Debugw(msg string, fields ...LogField) {
+	if shallLog(DebugLevel) {
 		writeDebug(msg, fields...)
 	}
+}
 
 // Disable disables the logging.
 func Disable() {
@@ -99,36 +107,48 @@ func DisableStat() {
 
 // Error writes v into error log.
 func Error(v ...any) {
+	if shallLog(ErrorLevel) {
 		writeError(fmt.Sprint(v...))
 	}
+}
 
 // Errorf writes v with format into error log.
 func Errorf(format string, v ...any) {
+	if shallLog(ErrorLevel) {
 		writeError(fmt.Errorf(format, v...).Error())
 	}
+}
 
 // ErrorStack writes v along with call stack into error log.
 func ErrorStack(v ...any) {
+	if shallLog(ErrorLevel) {
 		// there is newline in stack string
 		writeStack(fmt.Sprint(v...))
 	}
+}
 
 // ErrorStackf writes v along with call stack in format into error log.
 func ErrorStackf(format string, v ...any) {
+	if shallLog(ErrorLevel) {
 		// there is newline in stack string
 		writeStack(fmt.Sprintf(format, v...))
 	}
+}
 
 // Errorv writes v into error log with json content.
 // No call stack attached, because not elegant to pack the messages.
 func Errorv(v any) {
+	if shallLog(ErrorLevel) {
 		writeError(v)
 	}
+}
 
 // Errorw writes msg along with fields into error log.
 func Errorw(msg string, fields ...LogField) {
+	if shallLog(ErrorLevel) {
 		writeError(msg, fields...)
 	}
+}
 
 // Field returns a LogField for the given key and value.
 func Field(key string, value any) LogField {
@@ -170,23 +190,31 @@ func Field(key string, value any) LogField {
 
 // Info writes v into access log.
 func Info(v ...any) {
+	if shallLog(InfoLevel) {
 		writeInfo(fmt.Sprint(v...))
 	}
+}
 
 // Infof writes v with format into access log.
 func Infof(format string, v ...any) {
+	if shallLog(InfoLevel) {
 		writeInfo(fmt.Sprintf(format, v...))
 	}
+}
 
 // Infov writes v into access log with json content.
 func Infov(v any) {
+	if shallLog(InfoLevel) {
 		writeInfo(v)
 	}
+}
 
 // Infow writes msg along with fields into access log.
 func Infow(msg string, fields ...LogField) {
+	if shallLog(InfoLevel) {
 		writeInfo(msg, fields...)
 	}
+}
 
 // Must checks if err is nil, otherwise logs the error and exits.
 func Must(err error) {
@@ -269,43 +297,59 @@ func SetUp(c LogConf) (err error) {
 
 // Severe writes v into severe log.
 func Severe(v ...any) {
+	if shallLog(SevereLevel) {
 		writeSevere(fmt.Sprint(v...))
 	}
+}
 
 // Severef writes v with format into severe log.
 func Severef(format string, v ...any) {
+	if shallLog(SevereLevel) {
 		writeSevere(fmt.Sprintf(format, v...))
 	}
+}
 
 // Slow writes v into slow log.
 func Slow(v ...any) {
+	if shallLog(ErrorLevel) {
 		writeSlow(fmt.Sprint(v...))
 	}
+}
 
 // Slowf writes v with format into slow log.
 func Slowf(format string, v ...any) {
+	if shallLog(ErrorLevel) {
 		writeSlow(fmt.Sprintf(format, v...))
 	}
+}
 
 // Slowv writes v into slow log with json content.
 func Slowv(v any) {
+	if shallLog(ErrorLevel) {
 		writeSlow(v)
 	}
+}
 
 // Sloww writes msg along with fields into slow log.
 func Sloww(msg string, fields ...LogField) {
+	if shallLog(ErrorLevel) {
 		writeSlow(msg, fields...)
 	}
+}
 
 // Stat writes v into stat log.
 func Stat(v ...any) {
+	if shallLogStat() && shallLog(InfoLevel) {
 		writeStat(fmt.Sprint(v...))
 	}
+}
 
 // Statf writes v with format into stat log.
 func Statf(format string, v ...any) {
+	if shallLogStat() && shallLog(InfoLevel) {
 		writeStat(fmt.Sprintf(format, v...))
 	}
+}
 
 // WithCooldownMillis customizes logging on writing call stack interval.
 func WithCooldownMillis(millis int) LogOption {
@@ -429,44 +473,58 @@ func shallLogStat() bool {
 	return atomic.LoadUint32(&disableStat) == 0
 }
 
+// writeDebug writes v into debug log.
+// Not checking shallLog here is for performance consideration.
+// If we check shallLog here, the fmt.Sprint might be called even if the log level is not enabled.
+// The caller should check shallLog before calling this function.
 func writeDebug(val any, fields ...LogField) {
-	if shallLog(DebugLevel) {
 	getWriter().Debug(val, addCaller(fields...)...)
 }
-}
 
+// writeError writes v into error log.
+// Not checking shallLog here is for performance consideration.
+// If we check shallLog here, the fmt.Sprint might be called even if the log level is not enabled.
+// The caller should check shallLog before calling this function.
 func writeError(val any, fields ...LogField) {
-	if shallLog(ErrorLevel) {
 	getWriter().Error(val, addCaller(fields...)...)
 }
-}
 
+// writeInfo writes v into info log.
+// Not checking shallLog here is for performance consideration.
+// If we check shallLog here, the fmt.Sprint might be called even if the log level is not enabled.
+// The caller should check shallLog before calling this function.
 func writeInfo(val any, fields ...LogField) {
-	if shallLog(InfoLevel) {
 	getWriter().Info(val, addCaller(fields...)...)
 }
-}
 
+// writeSevere writes v into severe log.
+// Not checking shallLog here is for performance consideration.
+// If we check shallLog here, the fmt.Sprint might be called even if the log level is not enabled.
+// The caller should check shallLog before calling this function.
 func writeSevere(msg string) {
-	if shallLog(SevereLevel) {
 	getWriter().Severe(fmt.Sprintf("%s\n%s", msg, string(debug.Stack())))
 }
-}
 
+// writeSlow writes v into slow log.
+// Not checking shallLog here is for performance consideration.
+// If we check shallLog here, the fmt.Sprint might be called even if the log level is not enabled.
+// The caller should check shallLog before calling this function.
 func writeSlow(val any, fields ...LogField) {
-	if shallLog(ErrorLevel) {
 	getWriter().Slow(val, addCaller(fields...)...)
 }
-}
 
+// writeStack writes v into stack log.
+// Not checking shallLog here is for performance consideration.
+// If we check shallLog here, the fmt.Sprint might be called even if the log level is not enabled.
+// The caller should check shallLog before calling this function.
 func writeStack(msg string) {
-	if shallLog(ErrorLevel) {
 	getWriter().Stack(fmt.Sprintf("%s\n%s", msg, string(debug.Stack())))
 }
-}
 
+// writeStat writes v into stat log.
+// Not checking shallLog here is for performance consideration.
+// If we check shallLog here, the fmt.Sprint might be called even if the log level is not enabled.
+// The caller should check shallLog before calling this function.
 func writeStat(msg string) {
-	if shallLogStat() && shallLog(InfoLevel) {
 	getWriter().Stat(msg, addCaller()...)
 }
-}

tools/goctl/util/ctx/gomod.go

@@ -77,34 +77,44 @@ func getRealModule(workDir string, execRun execx.RunFunc) (*Module, error) {
 	if err != nil {
 		return nil, err
 	}
+
 	modules, err := decodePackages(strings.NewReader(data))
 	if err != nil {
 		return nil, err
 	}
+
 	for _, m := range modules {
-		mRealDir, err := pathx.ReadLink(m.Dir)
+		realDir, err := pathx.ReadLink(m.Dir)
 		if err != nil {
-			return nil, fmt.Errorf("mod dir [%s] error: %w", m.Dir, err)
+			return nil, fmt.Errorf("failed to read go.mod, dir: %s, error: %w", m.Dir, err)
 		}
 
-		if strings.HasPrefix(workDir, mRealDir) {
+		if strings.HasPrefix(workDir, realDir) {
 			return &m, nil
 		}
 	}
+
 	return nil, errors.New("no matched module")
 }
 
-func decodePackages(rc io.Reader) ([]Module, error) {
-	r := bufio.NewReader(rc)
-	_, _ = r.ReadSlice('{')
-	_ = r.UnreadByte()
+func decodePackages(reader io.Reader) ([]Module, error) {
+	br := bufio.NewReader(reader)
+	if _, err := br.ReadSlice('{'); err != nil {
+		return nil, err
+	}
+
+	if err := br.UnreadByte(); err != nil {
+		return nil, err
+	}
+
 	var modules []Module
-	decoder := json.NewDecoder(r)
+	decoder := json.NewDecoder(br)
 	for decoder.More() {
 		var m Module
 		if err := decoder.Decode(&m); err != nil {
 			return nil, fmt.Errorf("invalid module: %v", err)
 		}
+
 		modules = append(modules, m)
 	}