Re: [squid-users] Squid on Windows, slow file transfers

On Mon, 20 Jul 2009 14:40:33 -0700, Joseph Jamieson
<jjamieson_at_FutureFoundations.com> wrote:
> Hello,
>
> I have squid 2.7.STABLE6 running on Server 2008. Its purpose is a
> reverse-proxy for several web services.
>
> For instance, one service is OWA, another is a web-based file-sharing
> utility, and another is a plain old web site. All DNS records (mail.,
> files., www.) point to the same IP which is NATted to Squid.

Ew. For starters point DNS at the Squid public IP properly.

> Each of
> these services is running on a separate machine.
>
> It all works great. Squid determines which back-end machine/port to
> request the data from based on http headers. It's squid at its finest.
>
> However, file transfers through it are very slow. The connection is
> 20Mbit. When I go directly to the web file server via a direct NAT, I
> can download at full speed. 1.5MB/s is common from this method.
> However, when I go through the squid reverse-proxy, response time is
great
> but file transfers never go above 200K/s.

Could be many things. From disk speeds, to OS swapping, or FD exhaustion
(Windows is system-capped at 1K handles IIRC).

>
> It's almost as if connections are capped/throttled at a certain speed
> within squid. I tested a direct web server on port 80 under the
suspicion
> that the ISP was throttling port 80 but it was fine.
>
> I am having a devil of a time tracking down this problem, and any
> suggestions are most welcome.
>
> Thanks.
>
> Joe
Received on Mon Jul 20 2009 - 23:36:43 MDT