I'm no expert, but if your load level is low, it does sound possible
that you are having issues accepting requests in serial for each
worker connection. I would try increasing the number of worker
processes to 32 and see if that helps. Also, if you're seeing 5k
connections, you should try increasing the number of worker
connections to double what it is now, just in case.

Be happy to hear any dissenting opinions.
-Gabe

On Wed, Jul 1, 2009 at 6:23 PM, Avleen Vig<avleen@gmail.com> wrote:
> Hi folks, I have some questions about tuning nginx for best
> performance, on a site which handle ~1000 requests per second.
>
> In our config, we have:
>
>