Bring clocks(7) into line with mdoc standards.
Reviewed by: joerg
This commit is contained in:
parent
3fd674e22b
commit
24e89d55ba
@ -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
|
||||
|
Loading…
Reference in New Issue
Block a user