[ILUG] Bigger pipes...

[Justin Mason]

kevin lyda said:

> since nfs allows for caching, uses larger buffers and uses udp, i'm a
> bit lost on the "extra overhead" argument.  not sure who mentioned it,
> but i'm curious as to a justification for the comment.

'twas me...

It's actually old advice from Solaris, so it may not apply to Linux as
much, but basically, it makes sense:

  - let a process on one machine read the file sequentially, which is more
    likely to be optimised than the NFS-read case (only slightly more
    likely, but...);

  - then use TCP, which, I thought, was more likely to be good for big
    blats over a local LAN than UDP.

Might be wrong about the latter though.  (and judging by Kenn's results,
yes I am ;)

--j.