limit issue, i think it's a bug

[talisto]

I realize this is a two-year-old topic, but I'm having the same issue. 
It doesn't matter what I have the rate set to, it only allows about 2
requests per second.  This is my config:

in http:
limit_req_zone $binary_remote_addr zone=flood:10m rate=15r/s;

in server location:
limit_req zone=flood;

That should really be all that is necessary, right?  I'm using Nginx
1.1.6.

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,25729,219093#msg-219093