Is anyone using ESI with a lot of traffic?

[John Adams]

On Feb 27, 2009, at 1:06 PM, Cloude Porteus wrote:

> We're going to start implementing some ESI tests within Varnish. I'm
> curious what the performance hit is going to be. I would imagine we'll
> have 6-10 ESI statements in our pages.

We're using ESI on search.twitter.com under fairly high load.  ESI  
works well, and we use it to defeat the cache-busting parameters that  
jQuery requests send our way.

I don't have much time to assist you, but I could certainly post some  
of our startup parameters (which took a fair amount of time to figure  
out) and give you reasons why we made the decisions we did.

-john

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John Adams
Twitter Operations
jna at twitter.com
http://twitter.com/netik