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Capitalize the last two entries. Note that i8254 is a timer. Report

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that TSC is for any fifth-gneration of later x86 processor, not an
i586, and document that it _is_ available to applications.
This commit is contained in:
Brian Feldman 2000-07-28 21:48:58 +00:00
parent 27ca7e5d20
commit ba66454b69
1 changed files with 8 additions and 4 deletions
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12
share/man/man7/clocks.7
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@ -116,13 +116,17 @@ to applications in
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
The i8254 clock. This is a real clock/timer with a nominal frequency of
1193182. It is divided down to give the scheduling clock. It isn't
available to applications.
.It
the i586 clock on i586 systems. This is a real clock with a frequency
of up to 200000000. It is used to interpolate between values of the
scheduling clock. It isn't available to applications.
The TSC clock (64-bit register) on fifth-generation or later x86 systems.
This is a real clock with a frequency that is equivalent to the number of
cycles per second of the CPU(s).
Its frequency can be found using the sysctl
.Sy machdep.tsc_freq .
It is used to interpolate between values of the scheduling clock.
It is only available to applications in a purely machine-dependant manner.
.El
.Pp
Summary: if