What to do best performance at varnish?

[Monty Ree]

Hello, list.

I would like to set the vernishd with best performance caching.
But I can't find any related documentation,(already saw man page) 
So is there any recommendable config to improve the performance of 
varnishd?
My system is linux(kernel 2.6, centos 4.x)

for example, 
-. which Cache file size is required?
-. Dual CPU and large RAM would be good to performance? 
-. which value is required VARNISH_MAX_THREADS, VARNISH_MIN_THREADS?
-. any sysctl tuning?


Thanks for your help in advance.

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