Re: 22.1.50; insert-file-contents is slow under tramp

[Richard Stallman]

    It is hard to say: basically, they work around deficiencies in the CPU
    schedulers of the respective operating systems.

That suggests we should enable them by default on the systems where
they help, right?

    Linux is supposed to get CFS, "completely fair scheduling" in its next
    released version, something like 2.6.23.  This should quite help with
    the original problem.

We might want to set the default at run time based on that.
But that is a matter for the future.  For current versions of Linux,
is it better to set process-adaptive-read-buffering to t?