Http Accept filters (accf_http)

[Scott Long]

Poul-Henning Kamp wrote:
> In message <480E307B.901 at quis.cx>, Jille writes:
>> Hello,
>>
>> I've read about accf_http(9) some time ago, and I was wondering about 
>> it's performance.
>> Does it increase performance on all workloads ?
>> (I'm intrested in the improvements for a PHP-apache-webserver with about 
>> 50 request/second average.)
> 
> I doubt you will see measurable performance difference from using
> request filters at such low traffic.
> 

The accept filters do reduce service latency and probably have a small
benefit in CPU utilization.  50 requests/sec is probably enough to see
a benefit for something like PHP or PERL.  It definitely won't hurt, and
even if there's no measurable benefit now, it'll help prepare you for
scaling in the future.

Scott