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| author | bde <bde@FreeBSD.org> | 1996-10-25 13:01:56 +0000 |
|---|---|---|
| committer | bde <bde@FreeBSD.org> | 1996-10-25 13:01:56 +0000 |
| commit | df0eda67f3449abc68f3b3b7a4b8088f713f9410 (patch) | |
| tree | 5968eb78feb617d966921606e10992b228f61554 /sys/kern/kern_timeout.c | |
| parent | 546845af741d292452163e8a23e043024e484fbf (diff) | |
| download | FreeBSD-src-df0eda67f3449abc68f3b3b7a4b8088f713f9410.zip FreeBSD-src-df0eda67f3449abc68f3b3b7a4b8088f713f9410.tar.gz | |
Improved biasing of i586 clock by adjusting for hardclock() latency.
I decided to do this for every hardclock() call instead of lazily
in microtime(). The lazy method is simpler but has more overhead
if microtime() is called a lot.
CPU_THISTICKLEN() is now a no-op and should probably go away.
Previously it did nothing directly but had the side effect of
setting i586_last_tick for CPU_CLOCKUPDATE() and i586_avg_tick for
debugging. CPU_CLOCKUPDATE() now uses a better method and
i586_avg_tick is too much trouble to maintain.
Reduced nesting of #includes in the usual case.
Increased nesting of #includes when CLOCK_HAIR is defined. This
is a kludge to get typedefs for inline functions only when the
inline functions are used. Normally only kern_clock.c defines
this. kern_clock.c can't include the i386 headers directly.
Removed unused LOCORE support.
Diffstat (limited to 'sys/kern/kern_timeout.c')
| -rw-r--r-- | sys/kern/kern_timeout.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/kern/kern_timeout.c b/sys/kern/kern_timeout.c index d94d53e..b1f3bb0 100644 --- a/sys/kern/kern_timeout.c +++ b/sys/kern/kern_timeout.c @@ -36,7 +36,7 @@ * SUCH DAMAGE. * * @(#)kern_clock.c 8.5 (Berkeley) 1/21/94 - * $Id: kern_clock.c,v 1.26 1996/07/30 16:59:22 bde Exp $ + * $Id: kern_clock.c,v 1.27 1996/10/10 10:25:03 bde Exp $ */ /* Portions of this software are covered by the following: */ @@ -76,6 +76,7 @@ #include <sys/sysctl.h> #include <machine/cpu.h> +#define CLOCK_HAIR /* XXX */ #include <machine/clock.h> #ifdef GPROF |
