Re: Unix sockets via TCP on localhost: is TCP slower?

From: J.R. Mauro
Date: Thu Nov 13 2008 - 19:19:48 EST


On Wed, Nov 12, 2008 at 6:20 PM, Olaf van der Spek <olafvdspek@xxxxxxxxx> wrote:
> Hi,
>
> Quite often in discussions, I see people claiming Unix sockets are
> faster then TCP sockets on a connection that stays inside localhost.

Unix domain sockets should be faster because they're not subject to
windowing, ACKs, flow control, encapsulation, etc. etc.

> Let's say from app A to app B.
> Is this indeed the case and if so, how much and why?
> My assumption is that the kernel can optimize the 'connection' and let
> any performance differences disappear.
>
> Greetings,
>
> Olaf
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