Measuring nginx's efficiency

[ST]

On Thu, 2017-06-29 at 15:09 +0300, Valentin V. Bartenev wrote:
> On Thursday 29 June 2017 14:00:37 ST wrote:
> > Hello,
> > 
> > with your help I managed to configure nginx and our website now can be
> > accessed both - through apache and nginx.
> > 
> > Now, how can I prove to my boss that nginx is more efficient than apache
> > to switch to it? How do I measure its performance and compare it to that
> > of apache? Which tools would you recommend?
> > 
> > Thank you in advance!
> > 
> 
> I suggest wrk.
> 
> https://github.com/wg/wrk
> 

Should I stress our production system with this tool? Our system blocks
users that make to many requests in a given amount of time...
Also, how do I prove that static content is now served faster?

Thank you.