The performance of ROR is influenced by many factors, particularly the configuration of your deployment server(s). However the application code can make a big difference and determine whether your site is slow or highly responsive. Achieving good performance is a tricky business.
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NeverBlock is a library, using Ruby 1.9 fibers that allows developers to write non-blocking, concurrent code in a transparent manner. Meaning that you will keep coding in your traditional ways while you get the benefit of non-blocking IO operations.

Traditionally, a Ruby application would block whenever it requests an IO operation. This can be solved by running code in multiple threads but this comes at a cost, mainly:
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I have come up with following solution where you don’t have access to control your remote database. and you may need steps to connect remote database through tunneling

1. Get putty and run it.
2. Enter the host name that you use for normal SFTP access.

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