[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Any idea about what makes Emacs slow reading on pipes?
From: |
Kai Großjohann |
Subject: |
Re: Any idea about what makes Emacs slow reading on pipes? |
Date: |
Sun, 18 May 2003 17:09:57 +0200 |
User-agent: |
Gnus/5.1003 (Gnus v5.10.3) Emacs/21.3.50 (gnu/linux) |
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.
--
This line is not blank.
- Re: Any idea about what makes Emacs slow reading on pipes?, (continued)
- Re: Any idea about what makes Emacs slow reading on pipes?, David Kastrup, 2003/05/17
- Re: Any idea about what makes Emacs slow reading on pipes?, Stefan Monnier, 2003/05/17
- Re: Any idea about what makes Emacs slow reading on pipes?, Kai Großjohann, 2003/05/18
- Re: Any idea about what makes Emacs slow reading on pipes?, David Kastrup, 2003/05/18
- Re: Any idea about what makes Emacs slow reading on pipes?, Richard Stallman, 2003/05/18
- Re: Any idea about what makes Emacs slow reading on pipes?, David Kastrup, 2003/05/18
- Re: Any idea about what makes Emacs slow reading on pipes?, Kai Großjohann, 2003/05/19
- Re: Any idea about what makes Emacs slow reading on pipes?, David Kastrup, 2003/05/19
- Re: Any idea about what makes Emacs slow reading on pipes?, Kai Großjohann, 2003/05/18
- Re: Any idea about what makes Emacs slow reading on pipes?, David Kastrup, 2003/05/18
- Re: Any idea about what makes Emacs slow reading on pipes?,
Kai Großjohann <=
- Re: Any idea about what makes Emacs slow reading on pipes?, David Kastrup, 2003/05/18
- Re: Any idea about what makes Emacs slow reading on pipes?, Kai Großjohann, 2003/05/18
- Re: Any idea about what makes Emacs slow reading on pipes?, David Kastrup, 2003/05/18
- Re: Any idea about what makes Emacs slow reading on pipes?, Kai Großjohann, 2003/05/19
- Re: Any idea about what makes Emacs slow reading on pipes?, David Kastrup, 2003/05/19
- Re: Any idea about what makes Emacs slow reading on pipes?, Richard Stallman, 2003/05/18