Author: mav
Date: Fri Jan 3 18:08:31 2014
New Revision: 260234
URL: http://svnweb.freebsd.org/changeset/base/260234
Log:
Remove extra conversion to nanoseconds from ddi_get_lbolt64().
As result this uses one multiplication and shifts instead of one division
and two multiplications.
Modified:
head/sys/cddl/compat/opensolaris/sys/time.h
Modified: head/sys/cddl/compat/opensolaris/sys/time.h
==============================================================================
--- head/sys/cddl/compat/opensolaris/sys/time.h Fri Jan 3 16:36:55 2014
(r260233)
+++ head/sys/cddl/compat/opensolaris/sys/time.h Fri Jan 3 18:08:31 2014
(r260234)
@@ -70,12 +70,13 @@ gethrtime(void) {
#define gethrtime_waitfree() gethrtime()
extern int nsec_per_tick; /* nanoseconds per clock tick */
+extern int hz; /* clock ticks per second */
static __inline int64_t
ddi_get_lbolt64(void)
{
- return (gethrtime() / nsec_per_tick);
+ return (((getsbinuptime() >> 16) * hz) >> 16);
}
static __inline clock_t
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