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| author | phk <phk@FreeBSD.org> | 1998-05-28 09:30:28 +0000 |
|---|---|---|
| committer | phk <phk@FreeBSD.org> | 1998-05-28 09:30:28 +0000 |
| commit | d3d65c6b2e376ac074f3ca386b6f5b70ea37636f (patch) | |
| tree | 6beef0d8c93f6063bf0b9870b87a8c1ef8267cd4 /sys/amd64/isa/clock.c | |
| parent | 3654f28d394a609d42e7000c62963c45e3bba3db (diff) | |
| download | FreeBSD-src-d3d65c6b2e376ac074f3ca386b6f5b70ea37636f.zip FreeBSD-src-d3d65c6b2e376ac074f3ca386b6f5b70ea37636f.tar.gz | |
Some cleanups related to timecounters and weird ifdefs in <sys/time.h>.
Clean up (or if antipodic: down) some of the msgbuf stuff.
Use an inline function rather than a macro for timecounter delta.
Maintain process "on-cpu" time as 64 bits of microseconds to avoid
needless second rollover overhead.
Avoid calling microuptime the second time in mi_switch() if we do
not pass through _idle in cpu_switch()
This should reduce our context-switch overhead a bit, in particular
on pre-P5 and SMP systems.
WARNING: Programs which muck about with struct proc in userland
will have to be fixed.
Reviewed, but found imperfect by: bde
Diffstat (limited to 'sys/amd64/isa/clock.c')
| -rw-r--r-- | sys/amd64/isa/clock.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/amd64/isa/clock.c b/sys/amd64/isa/clock.c index 315e61a..671a3be 100644 --- a/sys/amd64/isa/clock.c +++ b/sys/amd64/isa/clock.c @@ -34,7 +34,7 @@ * SUCH DAMAGE. * * from: @(#)clock.c 7.2 (Berkeley) 5/12/91 - * $Id: clock.c,v 1.119 1998/04/05 01:04:48 tegge Exp $ + * $Id: clock.c,v 1.120 1998/05/19 18:48:30 phk Exp $ */ /* @@ -1129,7 +1129,7 @@ sysctl_machdep_tsc_freq SYSCTL_HANDLER_ARGS SYSCTL_PROC(_machdep, OID_AUTO, tsc_freq, CTLTYPE_INT | CTLFLAG_RW, 0, sizeof(u_int), sysctl_machdep_tsc_freq, "I", ""); -static u_int +static unsigned i8254_get_timecount(void) { u_int count; @@ -1158,7 +1158,7 @@ i8254_get_timecount(void) return (count); } -static u_int +static unsigned tsc_get_timecount(void) { return (rdtsc()); |
