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Bring clocks(7) into line with mdoc standards.

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Reviewed by:	joerg
This commit is contained in:
Mike Pritchard 1996-04-07 21:12:10 +00:00
parent 3fd674e22b
commit 24e89d55ba
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=15124
1 changed files with 24 additions and 12 deletions
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36
share/man/man7/clocks.7
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@ -25,13 +25,13 @@
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.\" $Id$
.\" $Id: clocks.7,v 1.1 1996/04/05 08:51:22 joerg Exp $
.\" "
.Dd April 1, 1996
.Os
.Dt CLOCKS 7
.Sh NAME
.Nm timer
.Nm clocks
.Nd various system timers
.Sh SYNOPSIS
.Fd #include <time.h>
@ -53,23 +53,35 @@ The clock reported by
.Xr clock 3 .
This is a virtual clock with a frequency that happens to be 128. It's
actual frequency is given by the macro CLOCKS_PER_SEC. Note that
CLOCKS_PER_SEC may be floating point. Don't use clock() in new
programs under FreeBSD. It is feeble compared with
CLOCKS_PER_SEC may be floating point. Don't use
.Fn clock
in new programs under FreeBSD. It is feeble compared with
.Xr getrusage 2 .
It is provided for ANSI conformance. It is implemented by calling
getrusage() and throwing away information and resolution.
.Fn getrusage
and throwing away information and resolution.
.It
The clock reported by
.Xr times 3 .
This is a virtual clock with a frequency that happens to be 128. It's
actual frequency is given by the macro CLK_TCK (deprecated; don't use)
and by sysconf(_SC_CLK_TCK) and by
and by
.Fn sysconf SC_CLK_TCK
and by
.Xr sysctl 3 .
Note that its frequency may be different fro CLOCKS_PER_SEC. Don't
use times() in new programs under FreeBSD. It is feeble compared with
gettimeofday() together with getrusage(). It is provided for POSIX
conformance. It is implemented by calling gettimeofday() and
getrusage() and throwing away information and resolution.
Note that its frequency may be different from CLOCKS_PER_SEC. Don't
use
.Xr times 3
in new programs under FreeBSD. It is feeble compared with
.Xr gettimeofday 2
together with
.Fn getrusage .
It is provided for POSIX
conformance. It is implemented by calling
.Fn gettimeofday
and
.Fn getrusage
and throwing away information and resolution.
.It
The profiling clock. This is a real clock with frequency 1024.
It is used mainly by
@ -92,7 +104,7 @@ to applications in
.Xr gettimeofday 2 ,
.Xr select 2 ,
.Xr getitimer 2 ,
... This is the clock that should normally be used
etc... This is the clock that should normally be used
by BSD applications.
.It
the i8254 clock. This is a real clock with a nominal frequency of