Nginx ridiculously slow with PHP+SSL combined

[Max]

26 января 2012, 19:31 от "Xeriar" <nginx-forum at nginx.us>:
> 
> This seems like a rather enormous discrepancy,
> but I have no idea where to look. Does anyone have
> an idea of what might be going on?

Take a look at this and you will probably notice
what is going on:
 
> ab -k -c 900 -n 90000 http://amaterasu/test.php
> Complete requests:      90000
> Failed requests:        5754
> Keep-Alive requests:    0
> Transfer rate:          1005.38 [Kbytes/sec] received
>  
> ab -k -c 900 -n 90000 https://amaterasu/robots.txt
> Complete requests:      90000
> Failed requests:        0
> Keep-Alive requests:    89708
> Transfer rate:          8389.77 [Kbytes/sec] received
> 
> ab -k -c 900 -n 9000 https://amaterasu/test.php
> Complete requests:      9000
> Failed requests:        445
> Keep-Alive requests:    0
> Transfer rate:          63.92 [Kbytes/sec] received

The robots.txt via SSL test shows 89708 of 90000
Keep-Alive requests, which means the same SSL
connection was reused 99.67 % of the time, which
is why you got such good test results.

But the test.php via SSL test shows 0 out of 9000
Keep-Alive requests, which means that a new SSL
connection was established for each and every
successful request. Considering how CPU intensive
SSL is, your test results are really not that bad.

Max