Re: Any idea about what makes Emacs slow reading on pipes?

[Kai Großjohann]

address@hidden (David Kastrup) writes:

> It pretty obviously does.  Here is a test: start an xterm.  Then run
>
> od -v /dev/zero|dd obs=1
>
> in it.  Then, in some other shell window, type
>
> while true;do :; done

Interestingly enough, I can't observe this effect.  At least, the
output scrolls by really fast in both cases, and maybe I just can't
see the difference between two really fast speeds...

I'm running Linux 2.4.20 on a 2GHz Celeron.  I think that means I
don't have Hyperthreading and therefore just one CPU.

Hm.

I've now looked again on another machine (2GHz Mobile Pentium 4, same
kernel), and I can see the leading digits couting, and they count at
the same speed regardless of the while loop.
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