On 16 Oct2012, at 12:58 , justin <nginx-forum@nginx.us> wrote:

> I set PHP-FPM to:
>
> listen.backlog = 256
>
> and restart PHP-FPM. It was slightly (very little) better, but still:
>
> This rush generated 6,114 successful hits in 1.0 min and we transferred
> 34.39 MB of data in and out of your app. The average hit rate of 98/second
> translates to about 8,476,385 hits/day.
>
> The average response time was 229 ms.

It is simple math: you have 8 php workers, each request take ~ 0.2s,
most of that time request spend in php, so you are able to serve about
40 requests per second. Either increase number of php worker processes
and/or buy new hardware, or tune your php application, use caching and so on.

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