The FreeBSD Ports Archive
FreeBSD misc  : buffer
Buffer sporadic I/O for faster tape and pipe throughput
This is a program designed initially to speed up writing tapes on remote
tape drives, but may be used as a general pipe buffering utility.
Note: You must have SYSVSHM support in FreeBSD kernel.
The program splits itself into two processes. The first process reads
(and reblocks) from stdin into a shared memory buffer. The second
writes from the shared memory buffer to stdout. Doing it this way
means that the writing side effectly sits in a tight write loop and
doesn't have to wait for input. Similarly for the input side. It is
this waiting that slows down other reblocking processes, like dd.
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buffer history
v. 1.19
date: 2006/05/10 22:37:16; author: edwin; state: Exp; lines: +0 -2
Remove USE_REINPLACE from ports starting with M
v. 1.18
date: 2005/12/13 17:33:18; author: lioux; state: Exp; lines: +15 -5
o Update to 1.19
o Add several patches from Gentoo portage CVS
Approved by: maintainer (thanks jonny)
Obtained from: Gentoo portage CVS
v. 1.17
date: 2004/02/06 13:11:45; author: trevor; state: Exp; lines: +1 -0
Use PLIST_FILES (bento-tested, marcus-reviewed).
v. 1.16
date: 2003/02/21 12:48:05; author: knu; state: Exp; lines: +2 -1
De-pkg-comment.
v. 1.15
date: 2000/07/07 18:44:44; author: steve; state: Exp; lines: +3 -2
Use {MASTER,PATCH}_SITE_SUBDIR instead of make's sed capabilities.
v. 1.14
date: 2000/06/17 00:14:39; author: steve; state: Exp; lines: +2 -2
Use the distfiles now on ftp.freebsd.org instead of from my home directory
on freefall.
v. 1.13
date: 2000/04/14 08:45:25; author: asami; state: Exp; lines: +3 -3
Convert to PORTNAME/PORTVERSION.
v. 1.12
date: 2000/02/08 09:28:14; author: peter; state: Exp; lines: +2 -2
Change all www.freebsd.org/~user references to people.FreeBSD.org/~user,
as the days of the former are numbered.
Reviewed by: asami
v. 1.11
date: 1999/11/01 00:17:01; author: steve; state: Exp; lines: +4 -3
*** empty log message ***
v. 1.10
date: 1999/08/25 07:21:15; author: obrien; state: Exp; lines: +1 -1
Change Id->FreeBSD.
v. 1.9
date: 1999/05/30 02:34:05; author: steve; state: Exp; lines: +2 -2
Moved these files to the distfiles directory on my homepage.
v. 1.8
date: 1999/03/30 02:42:16; author: asami; state: Exp; lines: +7 -7
(I hope I caught this quickly enough....)
CVS replace buffer that was just imported with the backup from the Attic
cleanup. This should look identical to what Steve committed, except
it has all the history resurrected.
v. 1.7
date: 1998/03/14 21:01:00; author: markm; state: dead; lines: +1 -1
Remove buffer. This port no longer fetches, and team is better.
v. 1.6
date: 1996/11/17 09:05:15; author: obrien; state: Exp; lines: +2 -6
Converted to MAN[1-8]
Converted p5* to use MASTER_SITE_PERL_CPAN
v. 1.5
date: 1996/11/11 05:49:15; author: obrien; state: Exp; lines: +2 -2
CATEGORIES+= --> CATEGORIES=
Misc variable reordering, cleaning up, etc.
v. 1.4
date: 1995/11/26 10:47:25; author: asami; state: Exp; lines: +2 -2
Change "utilities" category to "misc" in preparation for move to misc.
v. 1.3
date: 1995/11/20 13:43:45; author: asami; state: Exp; lines: +4 -1
Add markm@freebsd.org as maintainer. Hey Mark, you are never going
to get a lemon meringue pie if you don't credit your work! :>
v. 1.2
date: 1995/11/17 19:09:27; author: markm; state: Exp; lines: +2 -2
Drat. Correct the fetch directory name.
v. 1.1
date: 1995/11/17 19:03:47; author: markm; state: Exp;
branches: 1.1.1;
Initial revision
v. 1.1.1.1
date: 1995/11/17 19:03:47; author: markm; state: Exp; lines: +0 -0
Add a stunningly useful utility.
if you ever nhave needed to do something like:
tar cf - | rsh cat > /dev/tape then you will appreciate this.
do something like
tar cf - | buffer | rsh othersys "cat | buffer > /dev/tape"
to enjoy HUGE increases in speed while your tape drive does not
incessantly back/forth/stop/start.
=============================================================================
v. 1.19
date: 2006/05/10 22:37:16; author: edwin; state: Exp; lines: +0 -2
Remove USE_REINPLACE from ports starting with M
v. 1.18
date: 2005/12/13 17:33:18; author: lioux; state: Exp; lines: +15 -5
o Update to 1.19
o Add several patches from Gentoo portage CVS
Approved by: maintainer (thanks jonny)
Obtained from: Gentoo portage CVS
v. 1.17
date: 2004/02/06 13:11:45; author: trevor; state: Exp; lines: +1 -0
Use PLIST_FILES (bento-tested, marcus-reviewed).
v. 1.16
date: 2003/02/21 12:48:05; author: knu; state: Exp; lines: +2 -1
De-pkg-comment.
v. 1.15
date: 2000/07/07 18:44:44; author: steve; state: Exp; lines: +3 -2
Use {MASTER,PATCH}_SITE_SUBDIR instead of make's sed capabilities.
v. 1.14
date: 2000/06/17 00:14:39; author: steve; state: Exp; lines: +2 -2
Use the distfiles now on ftp.freebsd.org instead of from my home directory
on freefall.
v. 1.13
date: 2000/04/14 08:45:25; author: asami; state: Exp; lines: +3 -3
Convert to PORTNAME/PORTVERSION.
v. 1.12
date: 2000/02/08 09:28:14; author: peter; state: Exp; lines: +2 -2
Change all www.freebsd.org/~user references to people.FreeBSD.org/~user,
as the days of the former are numbered.
Reviewed by: asami
v. 1.11
date: 1999/11/01 00:17:01; author: steve; state: Exp; lines: +4 -3
*** empty log message ***
v. 1.10
date: 1999/08/25 07:21:15; author: obrien; state: Exp; lines: +1 -1
Change Id->FreeBSD.
v. 1.9
date: 1999/05/30 02:34:05; author: steve; state: Exp; lines: +2 -2
Moved these files to the distfiles directory on my homepage.
v. 1.8
date: 1999/03/30 02:42:16; author: asami; state: Exp; lines: +7 -7
(I hope I caught this quickly enough....)
CVS replace buffer that was just imported with the backup from the Attic
cleanup. This should look identical to what Steve committed, except
it has all the history resurrected.
v. 1.7
date: 1998/03/14 21:01:00; author: markm; state: dead; lines: +1 -1
Remove buffer. This port no longer fetches, and team is better.
v. 1.6
date: 1996/11/17 09:05:15; author: obrien; state: Exp; lines: +2 -6
Converted to MAN[1-8]
Converted p5* to use MASTER_SITE_PERL_CPAN
v. 1.5
date: 1996/11/11 05:49:15; author: obrien; state: Exp; lines: +2 -2
CATEGORIES+= --> CATEGORIES=
Misc variable reordering, cleaning up, etc.
v. 1.4
date: 1995/11/26 10:47:25; author: asami; state: Exp; lines: +2 -2
Change "utilities" category to "misc" in preparation for move to misc.
v. 1.3
date: 1995/11/20 13:43:45; author: asami; state: Exp; lines: +4 -1
Add markm@freebsd.org as maintainer. Hey Mark, you are never going
to get a lemon meringue pie if you don't credit your work! :>
v. 1.2
date: 1995/11/17 19:09:27; author: markm; state: Exp; lines: +2 -2
Drat. Correct the fetch directory name.
v. 1.1
date: 1995/11/17 19:03:47; author: markm; state: Exp;
branches: 1.1.1;
Initial revision
v. 1.1.1.1
date: 1995/11/17 19:03:47; author: markm; state: Exp; lines: +0 -0
Add a stunningly useful utility.
if you ever nhave needed to do something like:
tar cf - | rsh cat > /dev/tape then you will appreciate this.
do something like
tar cf - | buffer | rsh othersys "cat | buffer > /dev/tape"
to enjoy HUGE increases in speed while your tape drive does not
incessantly back/forth/stop/start.
=============================================================================
v. 1.19
date: 2006/05/10 22:37:16; author: edwin; state: Exp; lines: +0 -2
Remove USE_REINPLACE from ports starting with M
v. 1.18
date: 2005/12/13 17:33:18; author: lioux; state: Exp; lines: +15 -5
o Update to 1.19
o Add several patches from Gentoo portage CVS
Approved by: maintainer (thanks jonny)
Obtained from: Gentoo portage CVS
v. 1.17
date: 2004/02/06 13:11:45; author: trevor; state: Exp; lines: +1 -0
Use PLIST_FILES (bento-tested, marcus-reviewed).
v. 1.16
date: 2003/02/21 12:48:05; author: knu; state: Exp; lines: +2 -1
De-pkg-comment.
v. 1.15
date: 2000/07/07 18:44:44; author: steve; state: Exp; lines: +3 -2
Use {MASTER,PATCH}_SITE_SUBDIR instead of make's sed capabilities.
v. 1.14
date: 2000/06/17 00:14:39; author: steve; state: Exp; lines: +2 -2
Use the distfiles now on ftp.freebsd.org instead of from my home directory
on freefall.
v. 1.13
date: 2000/04/14 08:45:25; author: asami; state: Exp; lines: +3 -3
Convert to PORTNAME/PORTVERSION.
v. 1.12
date: 2000/02/08 09:28:14; author: peter; state: Exp; lines: +2 -2
Change all www.freebsd.org/~user references to people.FreeBSD.org/~user,
as the days of the former are numbered.
Reviewed by: asami
v. 1.11
date: 1999/11/01 00:17:01; author: steve; state: Exp; lines: +4 -3
*** empty log message ***
v. 1.10
date: 1999/08/25 07:21:15; author: obrien; state: Exp; lines: +1 -1
Change Id->FreeBSD.
v. 1.9
date: 1999/05/30 02:34:05; author: steve; state: Exp; lines: +2 -2
Moved these files to the distfiles directory on my homepage.
v. 1.8
date: 1999/03/30 02:42:16; author: asami; state: Exp; lines: +7 -7
(I hope I caught this quickly enough....)
CVS replace buffer that was just imported with the backup from the Attic
cleanup. This should look identical to what Steve committed, except
it has all the history resurrected.
v. 1.7
date: 1998/03/14 21:01:00; author: markm; state: dead; lines: +1 -1
Remove buffer. This port no longer fetches, and team is better.
v. 1.6
date: 1996/11/17 09:05:15; author: obrien; state: Exp; lines: +2 -6
Converted to MAN[1-8]
Converted p5* to use MASTER_SITE_PERL_CPAN
v. 1.5
date: 1996/11/11 05:49:15; author: obrien; state: Exp; lines: +2 -2
CATEGORIES+= --> CATEGORIES=
Misc variable reordering, cleaning up, etc.
v. 1.4
date: 1995/11/26 10:47:25; author: asami; state: Exp; lines: +2 -2
Change "utilities" category to "misc" in preparation for move to misc.
v. 1.3
date: 1995/11/20 13:43:45; author: asami; state: Exp; lines: +4 -1
Add markm@freebsd.org as maintainer. Hey Mark, you are never going
to get a lemon meringue pie if you don't credit your work! :>
v. 1.2
date: 1995/11/17 19:09:27; author: markm; state: Exp; lines: +2 -2
Drat. Correct the fetch directory name.
v. 1.1
date: 1995/11/17 19:03:47; author: markm; state: Exp;
branches: 1.1.1;
Initial revision
v. 1.1.1.1
date: 1995/11/17 19:03:47; author: markm; state: Exp; lines: +0 -0
Add a stunningly useful utility.
if you ever nhave needed to do something like:
tar cf - | rsh cat > /dev/tape then you will appreciate this.
do something like
tar cf - | buffer | rsh othersys "cat | buffer > /dev/tape"
to enjoy HUGE increases in speed while your tape drive does not
incessantly back/forth/stop/start.
=============================================================================
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