Strategies for splitting load across varnish instances? And avoiding single-point-of-failure?

[Michael S. Fischer]

On Jan 18, 2010, at 1:52 PM, Poul-Henning Kamp wrote:

> In message <A8EDC1FB-E3E2-4BE7-887A-92B0D1DA9701 at dynamine.net>, "Michael S. Fis
> cher" writes:
> 
>> What VM can overcome page-thrashing incurred by constantly referencing a
>> working set that is significantly larger than RAM?
> 
> No VM can "overcome" the task at hand, but some work a lot better than
> others.
> 
> Varnish has a significant responsibility, not yet fully met, to tell
> the VM system as much about what is going on as possible.

Can you describe in more detail your comparative analysis and plans?  

Thanks,

--Michael