Impact Analysis of Localization of DNS For High Performance Computing

Ekta Gupta, Dr. Mohita Mohita


The internet is a universal system of hooked computer networks and adopting standard protocol suite to handle billion of users. When users browse on internet or send a query they require the name of the website which afterwards converted into the IP address of required web server. The role of DNS is to convert the user friendly domain names to unique IP addresses. The performance of DNS not only depends on the responsiveness or security or traffic controlling but also the quickness of the query answered by the resolver. In present study concept of having a local DNS in the network is used to study impact of Local DNS on the network performance. Local DNS is implemented within one Chassis of a Supercomputer to provide high computing performance. On the same time performance of Global or Non-Local DNS is also compared with the computing performance of the Local DNS. Performance is checked on the basis of the TCP window size varies from 16K to 64K. Using TCP window of size 16K the standard message size that can be sent comes out to be 1K which increases to 4K when we use TCP window size of 64K. When compared using window size 16K the average time of Non-local DNS comes out approximately double the time taken by the Local DNS to resolve a query. On the other hand Non-local DNS almost behaves like Local DNS when compared using TCP window size 64K. DNS is used for internet computation like email, browse etc. A new utility of DNS for high performance computing is analyzed.


Keywords: DNS, TCP window size, High performance computing.

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