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Round tickadj up. This prevents tickadj from being 0 when HZ > 500,

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which makes adjtime(2) useless and confuses xntpd(8) into refusing
to start even when it would use the kernel PLL instead of adjtime().
The result is the same as recommended by tickadj(8), at least when
HZ divides 10^6.  Of course, you wouldn't want to actually use
adjtime() when HZ is large.  In the silly boundary case of HZ == 10^6,
tickadj == tick == 1 so the clock stops while adjtime() is active.
This commit is contained in:
Bruce Evans 1998-06-21 12:22:35 +00:00
parent 316bbd5c6f
commit df471779ea
2 changed files with 4 additions and 4 deletions
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4
sys/conf/param.c
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@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* @(#)param.c 8.3 (Berkeley) 8/20/94
* $Id: param.c,v 1.26 1998/02/27 19:58:29 guido Exp $
* $Id: param.c,v 1.27 1998/05/15 20:10:54 wollman Exp $
*/
#include "opt_sysvipc.h"
@ -70,7 +70,7 @@
#endif
int hz = HZ;
int tick = 1000000 / HZ;
int tickadj = 30000 / (60 * HZ); /* can adjust 30ms in 60s */
int tickadj = howmany(30000, 60 * HZ); /* can adjust 30ms in 60s */
#define NPROC (20 + 16 * MAXUSERS)
#define MAXFILES (NPROC*2)
int maxproc = NPROC; /* maximum # of processes */

4
sys/kern/subr_param.c
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@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* @(#)param.c 8.3 (Berkeley) 8/20/94
* $Id: param.c,v 1.26 1998/02/27 19:58:29 guido Exp $
* $Id: param.c,v 1.27 1998/05/15 20:10:54 wollman Exp $
*/
#include "opt_sysvipc.h"
@ -70,7 +70,7 @@
#endif
int hz = HZ;
int tick = 1000000 / HZ;
int tickadj = 30000 / (60 * HZ); /* can adjust 30ms in 60s */
int tickadj = howmany(30000, 60 * HZ); /* can adjust 30ms in 60s */
#define NPROC (20 + 16 * MAXUSERS)
#define MAXFILES (NPROC*2)
int maxproc = NPROC; /* maximum # of processes */