如果您发现实际存在任何实际差异，除非您正在运行一个非常占用资源的大型网站，我会感到非常惊讶.

I'd be very surprised if you noticed any practical real world difference unless you're running a very large/resource intensive web site.

有一些(尽管很老)基准测试(

There are some (albeit quite old) benchmarks out there (here for example), but your experience will obviously differ depending on your specific usage pattern.