The FreeBSD Ports Archive
FreeBSD sysutils  : clockspeed
Uses a hardware tick counter to compensate for deviant system clock
clockspeed uses a hardware tick counter to compensate for a persistently
fast or slow system clock. Given a few time measurements from a reliable
source, it computes and then eliminates the clock skew.
sntpclock checks another system's NTP clock, and prints the results in a
format suitable for input to clockspeed. sntpclock is the simplest
available NTP/SNTP client.
taiclock and taiclockd form an even simpler alternative to SNTP. They
are suitable for precise time synchronization over a local area network,
without the hassles and potential security problems of an NTP server.
This version of clockspeed can use the Pentium RDTSC tick counter or the
Solaris gethrtime() nanosecond counter.
A port to non-i386 platforms was done using the clock_gettime(2)
function. Since this is somewhat experimental, there might be some
tiny precision differences from the i386 platform versions. You
have been warned!
http://cr.yp.to/clockspeed.html
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clockspeed history
v. 1.20
date: 2007/03/22 17:02:34; author: rafan; state: Exp; lines: +13 -17
- Move stuffs that are after post.mk to appropriate places
- Use DOCSDIR
PR: ports/109335
Submitted by: rafan
Approved by: maintainer timeout (1 month)
v. 1.19
date: 2006/05/13 04:15:26; author: edwin; state: Exp; lines: +0 -1
Remove USE_REINPLACE from all categories starting with S
v. 1.18
date: 2005/12/23 20:23:22; author: lioux; state: Exp; lines: +4 -1
o Update the leap seconds table according to
http://hpiers.obspm.fr/eoppc/bul/bulc/bulletinc.dat. There is a
leap seconds at the end of 2005.
o Obtain the fresh and updated leap seconds table from devel/libtai
port.
o Bump PORTREVISION
PR: 89948
Submitted by: Frank W. Josellis ,
markzero
Obtained from: http://hpiers.obspm.fr/eoppc/bul/bulc/bulletinc.dat
v. 1.17
date: 2004/12/25 11:43:57; author: lioux; state: Exp; lines: +0 -1
Remove deprecated USE_SIZE
v. 1.16
date: 2004/02/08 01:14:03; author: lioux; state: Exp; lines: +1 -0
USE_SIZEify
v. 1.15
date: 2003/02/23 19:58:33; author: lioux; state: Exp; lines: +1 -0
De-pkg-comment
v. 1.14
date: 2003/02/07 15:43:57; author: lioux; state: Exp; lines: +0 -1
Sanitize MASTER_SITES
Submitted by: fenner's distfiles survey
v. 1.13
date: 2003/01/02 05:46:09; author: lioux; state: Exp; lines: +8 -1
o Remove ONLY_FOR_ARCHS limitation by adding timing support other
than RDTSC registers from Pentium. After a reminder by Garrett
Wollman [1] that FreeBSD has a gethrtime()
similar function, added experimental support for FreeBSD
clock_gettime(2) which should work in all FreeBSD supported ARCHes
o Add notes in both DESCR and PKGMESSAGE that there might be precision
differences since this is experimental code
Reviewed by: portmgr (silence/no objections)
Submitted by: wollman [1]
v. 1.12
date: 2002/12/18 18:45:26; author: lioux; state: Exp; lines: +1 -0
Mark as ONLY_FOR_ARCHS i386 since it requires either a pentium
hardware tick counter or an equivalent Solaris gethrtime() syscall.
This should be investigated further. FreeBSD might have an equivalent
syscall.
Submitted by: bento
v. 1.11
date: 2002/11/04 22:57:36; author: edwin; state: Exp; lines: +2 -1
Half of these ones missed yesterday while converting to USE_REINPLACE.
The other half needs perl to build.
Noticed on bento and others (full mailbox :-)
v. 1.10
date: 2002/09/20 14:38:44; author: lioux; state: Exp; lines: +2 -1
Sanitize MASTER_SITES
Submitted by: fenner's distfile survey
v. 1.9
date: 2002/07/08 01:34:45; author: lioux; state: Exp; lines: +0 -1
Sanitize MASTER_SITES
v. 1.8
date: 2002/01/29 11:58:45; author: knu; state: Exp; lines: +4 -4
Use ${ECHO_CMD} instead of ${ECHO} where you mean the echo command;
the ECHO macro is set to "echo" by default, but it is set to "true" if
make(1) is invoked with the -s option while ECHO_CMD is always set to
the echo command.
v. 1.7
date: 2001/05/25 14:58:05; author: lioux; state: Exp; lines: +28 -6
1) Install leapsecs.dat (leapseconds support)
2) Add PKGMESSAGE with additional FreeBSD specific installation
information
3) Install sample startup script
4) Bump PORTREVISION due to (1)
PR: 27617
Submitted by: Vivek Khera
v. 1.6
date: 2001/02/22 17:22:39; author: lioux; state: Exp; lines: +4 -2
Add new MASTER_SITES
v. 1.5
date: 2001/01/16 19:08:35; author: will; state: Exp; lines: +1 -7
Update to sync with bsd.port.mk rev 1.361 - use PORTDOCS that is now in
bsd.port.mk, for easy removal of documentation. I left alone one port -
japanese/elisa8x8 (or something like that), because it appeared to have
some rather weird way of doing PORTDOCS substitution.
v. 1.4
date: 2001/01/16 17:32:26; author: sobomax; state: Exp; lines: +3 -3
Massive style enforcement - use ^I instead of spaces for variables identation.
v. 1.3
date: 2000/11/20 14:48:56; author: lioux; state: Exp; lines: +2 -1
Submitted by: sobomax
Bump PORTREVISION according to Revision 1.2 of
both files/patch-ac and pkg-plist.
v. 1.2
date: 2000/10/03 05:12:39; author: lioux; state: Exp; lines: +2 -2
Maintainer is now a committer, update email accordingly
Approved by: will
v. 1.1
date: 2000/07/07 14:30:01; author: sobomax; state: Exp;
Add clockspeed - a program which uses a hardware tick counter to compensate
for a persistently fast or slow system clock. It also could be used to
synchronize time across LAN or WAN.
PR: 19349
Submitted by: Mario Sergio Fujikawa Ferreira
=============================================================================
v. 1.20
date: 2007/03/22 17:02:34; author: rafan; state: Exp; lines: +13 -17
- Move stuffs that are after post.mk to appropriate places
- Use DOCSDIR
PR: ports/109335
Submitted by: rafan
Approved by: maintainer timeout (1 month)
v. 1.19
date: 2006/05/13 04:15:26; author: edwin; state: Exp; lines: +0 -1
Remove USE_REINPLACE from all categories starting with S
v. 1.18
date: 2005/12/23 20:23:22; author: lioux; state: Exp; lines: +4 -1
o Update the leap seconds table according to
http://hpiers.obspm.fr/eoppc/bul/bulc/bulletinc.dat. There is a
leap seconds at the end of 2005.
o Obtain the fresh and updated leap seconds table from devel/libtai
port.
o Bump PORTREVISION
PR: 89948
Submitted by: Frank W. Josellis ,
markzero
Obtained from: http://hpiers.obspm.fr/eoppc/bul/bulc/bulletinc.dat
v. 1.17
date: 2004/12/25 11:43:57; author: lioux; state: Exp; lines: +0 -1
Remove deprecated USE_SIZE
v. 1.16
date: 2004/02/08 01:14:03; author: lioux; state: Exp; lines: +1 -0
USE_SIZEify
v. 1.15
date: 2003/02/23 19:58:33; author: lioux; state: Exp; lines: +1 -0
De-pkg-comment
v. 1.14
date: 2003/02/07 15:43:57; author: lioux; state: Exp; lines: +0 -1
Sanitize MASTER_SITES
Submitted by: fenner's distfiles survey
v. 1.13
date: 2003/01/02 05:46:09; author: lioux; state: Exp; lines: +8 -1
o Remove ONLY_FOR_ARCHS limitation by adding timing support other
than RDTSC registers from Pentium. After a reminder by Garrett
Wollman [1] that FreeBSD has a gethrtime()
similar function, added experimental support for FreeBSD
clock_gettime(2) which should work in all FreeBSD supported ARCHes
o Add notes in both DESCR and PKGMESSAGE that there might be precision
differences since this is experimental code
Reviewed by: portmgr (silence/no objections)
Submitted by: wollman [1]
v. 1.12
date: 2002/12/18 18:45:26; author: lioux; state: Exp; lines: +1 -0
Mark as ONLY_FOR_ARCHS i386 since it requires either a pentium
hardware tick counter or an equivalent Solaris gethrtime() syscall.
This should be investigated further. FreeBSD might have an equivalent
syscall.
Submitted by: bento
v. 1.11
date: 2002/11/04 22:57:36; author: edwin; state: Exp; lines: +2 -1
Half of these ones missed yesterday while converting to USE_REINPLACE.
The other half needs perl to build.
Noticed on bento and others (full mailbox :-)
v. 1.10
date: 2002/09/20 14:38:44; author: lioux; state: Exp; lines: +2 -1
Sanitize MASTER_SITES
Submitted by: fenner's distfile survey
v. 1.9
date: 2002/07/08 01:34:45; author: lioux; state: Exp; lines: +0 -1
Sanitize MASTER_SITES
v. 1.8
date: 2002/01/29 11:58:45; author: knu; state: Exp; lines: +4 -4
Use ${ECHO_CMD} instead of ${ECHO} where you mean the echo command;
the ECHO macro is set to "echo" by default, but it is set to "true" if
make(1) is invoked with the -s option while ECHO_CMD is always set to
the echo command.
v. 1.7
date: 2001/05/25 14:58:05; author: lioux; state: Exp; lines: +28 -6
1) Install leapsecs.dat (leapseconds support)
2) Add PKGMESSAGE with additional FreeBSD specific installation
information
3) Install sample startup script
4) Bump PORTREVISION due to (1)
PR: 27617
Submitted by: Vivek Khera
v. 1.6
date: 2001/02/22 17:22:39; author: lioux; state: Exp; lines: +4 -2
Add new MASTER_SITES
v. 1.5
date: 2001/01/16 19:08:35; author: will; state: Exp; lines: +1 -7
Update to sync with bsd.port.mk rev 1.361 - use PORTDOCS that is now in
bsd.port.mk, for easy removal of documentation. I left alone one port -
japanese/elisa8x8 (or something like that), because it appeared to have
some rather weird way of doing PORTDOCS substitution.
v. 1.4
date: 2001/01/16 17:32:26; author: sobomax; state: Exp; lines: +3 -3
Massive style enforcement - use ^I instead of spaces for variables identation.
v. 1.3
date: 2000/11/20 14:48:56; author: lioux; state: Exp; lines: +2 -1
Submitted by: sobomax
Bump PORTREVISION according to Revision 1.2 of
both files/patch-ac and pkg-plist.
v. 1.2
date: 2000/10/03 05:12:39; author: lioux; state: Exp; lines: +2 -2
Maintainer is now a committer, update email accordingly
Approved by: will
v. 1.1
date: 2000/07/07 14:30:01; author: sobomax; state: Exp;
Add clockspeed - a program which uses a hardware tick counter to compensate
for a persistently fast or slow system clock. It also could be used to
synchronize time across LAN or WAN.
PR: 19349
Submitted by: Mario Sergio Fujikawa Ferreira
=============================================================================
v. 1.20
date: 2007/03/22 17:02:34; author: rafan; state: Exp; lines: +13 -17
- Move stuffs that are after post.mk to appropriate places
- Use DOCSDIR
PR: ports/109335
Submitted by: rafan
Approved by: maintainer timeout (1 month)
v. 1.19
date: 2006/05/13 04:15:26; author: edwin; state: Exp; lines: +0 -1
Remove USE_REINPLACE from all categories starting with S
v. 1.18
date: 2005/12/23 20:23:22; author: lioux; state: Exp; lines: +4 -1
o Update the leap seconds table according to
http://hpiers.obspm.fr/eoppc/bul/bulc/bulletinc.dat. There is a
leap seconds at the end of 2005.
o Obtain the fresh and updated leap seconds table from devel/libtai
port.
o Bump PORTREVISION
PR: 89948
Submitted by: Frank W. Josellis ,
markzero
Obtained from: http://hpiers.obspm.fr/eoppc/bul/bulc/bulletinc.dat
v. 1.17
date: 2004/12/25 11:43:57; author: lioux; state: Exp; lines: +0 -1
Remove deprecated USE_SIZE
v. 1.16
date: 2004/02/08 01:14:03; author: lioux; state: Exp; lines: +1 -0
USE_SIZEify
v. 1.15
date: 2003/02/23 19:58:33; author: lioux; state: Exp; lines: +1 -0
De-pkg-comment
v. 1.14
date: 2003/02/07 15:43:57; author: lioux; state: Exp; lines: +0 -1
Sanitize MASTER_SITES
Submitted by: fenner's distfiles survey
v. 1.13
date: 2003/01/02 05:46:09; author: lioux; state: Exp; lines: +8 -1
o Remove ONLY_FOR_ARCHS limitation by adding timing support other
than RDTSC registers from Pentium. After a reminder by Garrett
Wollman [1] that FreeBSD has a gethrtime()
similar function, added experimental support for FreeBSD
clock_gettime(2) which should work in all FreeBSD supported ARCHes
o Add notes in both DESCR and PKGMESSAGE that there might be precision
differences since this is experimental code
Reviewed by: portmgr (silence/no objections)
Submitted by: wollman [1]
v. 1.12
date: 2002/12/18 18:45:26; author: lioux; state: Exp; lines: +1 -0
Mark as ONLY_FOR_ARCHS i386 since it requires either a pentium
hardware tick counter or an equivalent Solaris gethrtime() syscall.
This should be investigated further. FreeBSD might have an equivalent
syscall.
Submitted by: bento
v. 1.11
date: 2002/11/04 22:57:36; author: edwin; state: Exp; lines: +2 -1
Half of these ones missed yesterday while converting to USE_REINPLACE.
The other half needs perl to build.
Noticed on bento and others (full mailbox :-)
v. 1.10
date: 2002/09/20 14:38:44; author: lioux; state: Exp; lines: +2 -1
Sanitize MASTER_SITES
Submitted by: fenner's distfile survey
v. 1.9
date: 2002/07/08 01:34:45; author: lioux; state: Exp; lines: +0 -1
Sanitize MASTER_SITES
v. 1.8
date: 2002/01/29 11:58:45; author: knu; state: Exp; lines: +4 -4
Use ${ECHO_CMD} instead of ${ECHO} where you mean the echo command;
the ECHO macro is set to "echo" by default, but it is set to "true" if
make(1) is invoked with the -s option while ECHO_CMD is always set to
the echo command.
v. 1.7
date: 2001/05/25 14:58:05; author: lioux; state: Exp; lines: +28 -6
1) Install leapsecs.dat (leapseconds support)
2) Add PKGMESSAGE with additional FreeBSD specific installation
information
3) Install sample startup script
4) Bump PORTREVISION due to (1)
PR: 27617
Submitted by: Vivek Khera
v. 1.6
date: 2001/02/22 17:22:39; author: lioux; state: Exp; lines: +4 -2
Add new MASTER_SITES
v. 1.5
date: 2001/01/16 19:08:35; author: will; state: Exp; lines: +1 -7
Update to sync with bsd.port.mk rev 1.361 - use PORTDOCS that is now in
bsd.port.mk, for easy removal of documentation. I left alone one port -
japanese/elisa8x8 (or something like that), because it appeared to have
some rather weird way of doing PORTDOCS substitution.
v. 1.4
date: 2001/01/16 17:32:26; author: sobomax; state: Exp; lines: +3 -3
Massive style enforcement - use ^I instead of spaces for variables identation.
v. 1.3
date: 2000/11/20 14:48:56; author: lioux; state: Exp; lines: +2 -1
Submitted by: sobomax
Bump PORTREVISION according to Revision 1.2 of
both files/patch-ac and pkg-plist.
v. 1.2
date: 2000/10/03 05:12:39; author: lioux; state: Exp; lines: +2 -2
Maintainer is now a committer, update email accordingly
Approved by: will
v. 1.1
date: 2000/07/07 14:30:01; author: sobomax; state: Exp;
Add clockspeed - a program which uses a hardware tick counter to compensate
for a persistently fast or slow system clock. It also could be used to
synchronize time across LAN or WAN.
PR: 19349
Submitted by: Mario Sergio Fujikawa Ferreira
=============================================================================
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