Hi,

We've been looking at using Varnish 2.1.5 with ESIs to allow us to cache the 
bulk of our page content whilst still generating the user-specific sections 
dynamically. The sticking point for us is that some of these page sections 
cannot be cached. It seems, based on both observed behaviour and a quick look 
at the code for ESI_Deliver, that Varnish is processing and requesting content 
for the ESIs serially rather than in parallel. 

I know there has been a lot of work on ESIs for Varnish 3, but as far as I can 
tell they are still processed serially. Are there any plans to switch to a 
parallel processing model? If not, might this be a worthy feature request for a 
future version of Varnish?

Cheers,

Steve

-- 
Steve Webster
Web Architect
LOVEFiLM

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