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From: "Jan D." <jan.h.d@swipnet.se>
Cc: emacs-devel@gnu.org
Subject: Re: Any idea about what makes Emacs slow reading on pipes?
Date: Fri, 16 May 2003 19:48:52 +0200	[thread overview]
Message-ID: <A804BB20-87C6-11D7-BC6C-00039363E640@swipnet.se> (raw)
In-Reply-To: <x5r86zm43m.fsf@lola.goethe.zz>

>
> The following exhibits abysmal speed within Emacs:
>
> (let (process-connection-type) (switch-to-buffer (generate-new-buffer
> "*test*"))(erase-buffer)(start-process "test" (current-buffer) "sh"
> "-c" "hexdump -v /dev/zero|dd bs=1 count=100k")(erase-buffer))

...

> The system I see this in is
> GNU Emacs 21.3.50.3 (i686-pc-linux-gnu)
> a RedHat 9 system, but I have seen this in practically every Linux
> system up to now.  Is this a Linux-specific problem, or do others see
> this as well?

I could not reproduce this on a slackware (version unknown, but libc 6)
or a Mandrake 9.0 system.  Maybe running under strace can give some
indication of the system call that takes time (if that is the issue)?

	Jan D.

  parent reply	other threads:[~2003-05-16 17:48 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-05-16 13:08 Any idea about what makes Emacs slow reading on pipes? David Kastrup
2003-05-16 13:55 ` Andreas Schwab
2003-05-16 17:18 ` Kevin Rodgers
2003-05-16 17:34   ` David Kastrup
2003-05-16 18:38     ` Kevin Rodgers
2003-05-16 18:49       ` David Kastrup
2003-05-16 17:48 ` Jan D. [this message]
2003-05-16 18:38   ` David Kastrup
2003-05-16 20:23     ` Jan D.
2003-05-16 21:00     ` Andreas Schwab
2003-05-16 23:17     ` Satyaki Das
2003-05-17  1:50     ` Kim F. Storm
2003-05-17  0:34       ` David Kastrup
2003-05-18  0:31         ` Kim F. Storm
2003-05-17 23:07           ` Stefan Monnier
2003-05-17 23:39           ` David Kastrup
2003-05-18  2:09             ` Stefan Monnier
2003-05-18  8:45             ` Kai Großjohann
2003-05-18 10:12               ` David Kastrup
2003-05-18 19:04               ` Richard Stallman
2003-05-18 19:46                 ` David Kastrup
2003-05-19  7:33                   ` Kai Großjohann
2003-05-19  8:24                     ` David Kastrup
2003-05-18  8:46             ` Kai Großjohann
2003-05-18 10:03               ` David Kastrup
2003-05-18 15:09                 ` Kai Großjohann
2003-05-18 15:36                   ` David Kastrup
2003-05-18 15:50                     ` Kai Großjohann
2003-05-18 16:28                       ` David Kastrup
2003-05-19  7:26                         ` Kai Großjohann
2003-05-19  8:09                           ` David Kastrup
2003-05-18 19:03           ` Richard Stallman

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