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2003-11-01 Roland McGrath <roland@redhat.com>

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* syscall.c (trace_syscall) [LINUX]: Calculate ONE_TICK once using
	setitimer rather than hard-coding a value based on HZ.
This commit is contained in:
Roland McGrath 2003-11-01 22:11:22 +00:00
parent 7aa6d2004c
commit ee9c5b5d63
1 changed files with 10 additions and 2 deletions
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12
syscall.c
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@ -2135,8 +2135,16 @@ struct tcb *tcp;
tv_sub(&tv, &tv, &tcp->etime);
#ifdef LINUX
if (tv_cmp(&tv, &tcp->dtime) > 0) {
static struct timeval one_tick =
{ 0, 1000000 / HZ };
static struct timeval one_tick;
if (one_tick.tv_usec == 0) {
/* Initialize it. */
struct itimerval it;
memset(&it, 0, sizeof it);
it.it_interval.tv_usec = 1;
setitimer(ITIMER_REAL, &it, NULL);
getitimer(ITIMER_REAL, &it);
one_tick = it.it_interval;
}
if (tv_nz(&tcp->dtime))
tv = tcp->dtime;