From: "Benninghofen, Benjamin Dr." <benjamin.benninghofen@airbus.com>
To: 32728@debbugs.gnu.org
Cc: Kevin Layer <layer@franz.com>
Subject: bug#32728: Xemacs 23 times as fast as GNU Emacs
Date: Thu, 13 Sep 2018 08:42:32 +0000 [thread overview]
Message-ID: <08c31622831a463da10ca3750f3d54fa@CD1-4DDAG02-P01.cdmail.common.airbusds.corp> (raw)
[-- Attachment #1.1: Type: text/plain, Size: 2066 bytes --]
The versions of Xemacs and GNU Emacs are those that come with RHEL 7.5.
The attachment contains 2 files:
demo.el : to be evaluated in Emacs Lisp
prog.sh : to be placed in the home directory
Furthermore a large text file "input.txt" is needed in the home directory. The file should have 1000000 lines, each line longer than 80 characters. The file is not included in the attachment because this would be too big.
The file I used was created with the following ANSI-COMMON-LISP function:
(defun print-nums (&key (first 1) (last 1000000))
(check-type first fixnum)
(check-type last fixnum)
(loop for k of-type fixnum from first to last do (format t "~%~B ^3 = ~B" k (expt k 3)))
t)
Alternatively the "input.txt" file can be created as follows:
#! /bin/bash
last=1000000
function base2 {
echo "obase=2;$1" | bc
}
for k in $(seq 1 $last); do
x=$(( k * k * k ))
echo $(base2 $k) '^3 =' $(base2 $x)
done
generate the input like this:
$ ./gen.sh > input.txt
The benchmark is executed by
(M-x) demo
At the end the time is printed and I received the following results:
Xemacs : 51 seconds
GNU Emacs : 1205 seconds
So the Xemacs is more than 23 times as fast as the GNU Emacs.
---
Benjamin Benninghofen
The information in this e-mail is confidential. The contents may not be disclosed or used by anyone other than the addressee. Access to this e-mail by anyone else is unauthorised.
If you are not the intended recipient, please notify Airbus immediately and delete this e-mail.
Airbus cannot accept any responsibility for the accuracy or completeness of this e-mail as it has been sent over public networks. If you have any concerns over the content of this message or its Accuracy or Integrity, please contact Airbus immediately.
All outgoing e-mails from Airbus are checked using regularly updated virus scanning software but you should take whatever measures you deem to be appropriate to ensure that this message and any attachments are virus free.
[-- Attachment #1.2: Type: text/html, Size: 3414 bytes --]
[-- Attachment #2: A_POLICY_VIOLATED_FILE_WAS_DETECTED_AND_REMOVED.TXT --]
[-- Type: text/plain, Size: 189 bytes --]
ScanMail detected and removed a file named "files2.tgz" that violated attachment blocking policy from the original mail entity. You can safely save or delete this replacement attachment.
reply other threads:[~2018-09-13 8:42 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=08c31622831a463da10ca3750f3d54fa@CD1-4DDAG02-P01.cdmail.common.airbusds.corp \
--to=benjamin.benninghofen@airbus.com \
--cc=32728@debbugs.gnu.org \
--cc=layer@franz.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).