[rabbitmq-discuss] Exchange matching performance

Matthew Sackman matthew at lshift.net
Mon Jun 15 18:17:56 BST 2009

On Mon, Jun 15, 2009 at 12:07:32PM -0500, tsuraan wrote:
> I seem to remember that direct exchanges dispatch much faster than
> topic due to the complexity of the matching in the topic exchange.
> Now that the headers exchange is out (or at least appears to be in the
> disk paging branch), how does that perform?  It seeks like it would be
> similar to the direct exchange, but with multiple possible keys.  I
> haven't done any speed testing yet; I'm just wondering what the
> expectation would be.

I can't comment as I didn't write that code, and the person who did is
currently on holiday. Beware that header exchange is defined in AMQP
0-9-1 and that what you have checked out is in fact an interesting mix
of 0-8 and 0-9-1. Clients almost certainly will break.


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