[Tech] Backoff considered harmful?

[Ian Clarke]

On 26 Nov 2006, at 14:44, Michael Rogers wrote:

> toad wrote:
>> Did you compare mandatory with advisory backoff?
>
> Advisory backoff works much better - please see the attached  
> graphs. The results without throttling or backoff look good, but  
> for higher loads the success rate collapses spectacularly - I  
> haven't been able to get any precise figures because the message  
> queues get so long I run out of RAM. :-)

If your machine's performance limitations are posing a problem, you  
may want to ask others on this list if they could give you an account  
on a beefier machine.

Ian.