diff options
| author | deischen <deischen@FreeBSD.org> | 2001-02-26 01:05:33 +0000 |
|---|---|---|
| committer | deischen <deischen@FreeBSD.org> | 2001-02-26 01:05:33 +0000 |
| commit | ead1438fd81ad5b1da39bee772afeab9f9811e19 (patch) | |
| tree | 9988bb604bc78f26ed8c89090c2b4f45d1e910ab /lib/libkse | |
| parent | ce6c5988070c2027393517cf05a48674dfad01c2 (diff) | |
| download | FreeBSD-src-ead1438fd81ad5b1da39bee772afeab9f9811e19.zip FreeBSD-src-ead1438fd81ad5b1da39bee772afeab9f9811e19.tar.gz | |
Limit threads clock resolution to no less than 1000usec (1000Hz).
PR: 25300
Submitted by: Tom Pavel <pavel@alum.mit.edu> (in part)
Diffstat (limited to 'lib/libkse')
| -rw-r--r-- | lib/libkse/thread/thr_init.c | 3 | ||||
| -rw-r--r-- | lib/libkse/thread/thr_private.h | 1 |
2 files changed, 3 insertions, 1 deletions
diff --git a/lib/libkse/thread/thr_init.c b/lib/libkse/thread/thr_init.c index c92efe3..80ec231 100644 --- a/lib/libkse/thread/thr_init.c +++ b/lib/libkse/thread/thr_init.c @@ -414,7 +414,8 @@ _thread_init(void) mib[1] = KERN_CLOCKRATE; len = sizeof (struct clockinfo); if (sysctl(mib, 2, &clockinfo, &len, NULL, 0) == 0) - _clock_res_usec = clockinfo.tick; + _clock_res_usec = clockinfo.tick > CLOCK_RES_USEC_MIN ? + clockinfo.tick : CLOCK_RES_USEC_MIN; /* Get the table size: */ if ((_thread_dtablesize = getdtablesize()) < 0) { diff --git a/lib/libkse/thread/thr_private.h b/lib/libkse/thread/thr_private.h index 7a37de8..8e04bd5 100644 --- a/lib/libkse/thread/thr_private.h +++ b/lib/libkse/thread/thr_private.h @@ -459,6 +459,7 @@ enum pthread_susp { * Clock resolution in microseconds. */ #define CLOCK_RES_USEC 10000 +#define CLOCK_RES_USEC_MIN 1000 /* * Time slice period in microseconds. |
