From: presotto@plan9.bell-labs.com
To: 9fans@cse.psu.edu
Subject: [9fans] long long warning
Date: Fri, 15 Mar 2002 09:07:51 -0500 [thread overview]
Message-ID: <8a398537df07d5cc97101f691a5932e2@plan9.bell-labs.com> (raw)
Danger Will Robinson! Danger, Danger!
The Plan 9 long long implementation is at best a
convenience. Because every op results in a subroutine
call, the performance is an order of magnitude worse than
it could be. If you have the odd long operation to do,
it's useful. Trying to do compute intensive work with
it is not playable. For example, the extended arithmetic
package, libmp, does everything with unsigned longs.
We really could use a compiler with long long
implemented as inline ops. I'ld volunteer but
my stack is already too deep. Maybe in six
months. If anyone could do it sooner, and make
the corners like ?: work, it would be appreciated.
next reply other threads:[~2002-03-15 14:07 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-15 14:07 presotto [this message]
2002-03-15 16:20 ` Scott Schwartz
2002-03-18 10:34 ` ozan s. yigit
2002-03-18 17:37 ` Thomas Bushnell, BSG
2002-03-18 18:08 ` skipt
2002-03-19 9:49 ` Thomas Bushnell, BSG
2002-03-19 17:11 ` Dan Cross
2002-03-19 9:49 ` ozan s yigit
2002-03-15 16:26 presotto
2002-03-19 10:45 forsyth
2002-03-19 17:28 ` Dan Cross
2002-03-19 13:56 Peter Bosch
2002-03-20 9:43 ` Thomas Bushnell, BSG
2002-03-19 14:03 nigel
2002-03-20 6:55 Geoff Collyer
2002-03-20 9:43 ` Thomas Bushnell, BSG
2002-03-20 7:40 nigel
2002-03-20 10:55 forsyth
2002-03-20 14:49 Russ Cox
2002-03-20 18:18 markp
2002-03-21 7:50 ` skipt
2002-03-21 3:31 dmr
2002-03-21 4:06 ` George Michaelson
2002-03-21 11:02 ` Thomas Bushnell, BSG
2002-03-22 6:14 David Gordon Hogan
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
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=8a398537df07d5cc97101f691a5932e2@plan9.bell-labs.com \
--to=presotto@plan9.bell-labs.com \
--cc=9fans@cse.psu.edu \
/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.
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 NNTP newsgroup(s).