On 04/01/2017 16:19, "Andy Seaborne" <[email protected]> wrote:

    Given enough data, a rotating disk, cold, a portable, and bytes codes 
    not JIT'ed, 2s for reading the data is possible.

There is also potentially OS caching effects. Reading data may be faster on 
subsequent runs if the file is still in the OS file cache i.e. In memory

Rob




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