[performance] fmt.Sprintf gets called for every single log line

[frankjkelly]

Noticed this during a flamegraph analysis of our code

Looks like fmt.Sprintf is pretty expensive for CPU usage? Especially for Debug logging.

pulsar-client-go/pulsar/log/wrapper_slog.go

Lines 51 to 65 in a5c6dee

	func (s *slogWrapper) Debugf(format string, args ...any) {
	s.logger.Debug(fmt.Sprintf(format, args...))
	}
	func (s *slogWrapper) Infof(format string, args ...any) {
	s.logger.Info(fmt.Sprintf(format, args...))
	}
	func (s *slogWrapper) Warnf(format string, args ...any) {
	s.logger.Warn(fmt.Sprintf(format, args...))
	}
	func (s *slogWrapper) Errorf(format string, args ...any) {
	s.logger.Error(fmt.Sprintf(format, args...))
	}

[frankjkelly]

Looks like it is fixed by #1374?

[nodece]

Closed by #1374