Relationship between DNS requests and server's CPU load

[Joe Shen <jshen () spymac com>]

Hi,


I want to know, is there any research or analysis on relationship between DNS server load ( e.g. CPU load, Memory 
utilized) and incoming DNS resolution requests ? 

Besides those research on  name system architecture and cache policy, is there any guideline on planing or optimizing  
domain name service system ? 


thanks in advance.


Joe 



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