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clean up children more often

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This commit is contained in:
rsc 2004-06-09 14:23:34 +00:00
parent f9aa99c72e
commit 65de82a30f
1 changed files with 7 additions and 3 deletions
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10
src/libthread/sched.c
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@ -25,8 +25,8 @@ _schedinit(void *arg)
{ {
Proc *p; Proc *p;
Thread *t; Thread *t;
extern void ignusr1(void), _threaddie(int); extern void ignusr1(int), _threaddie(int);
ignusr1(); ignusr1(1);
signal(SIGTERM, _threaddie); signal(SIGTERM, _threaddie);
p = arg; p = arg;
@ -103,7 +103,8 @@ runthread(Proc *p)
q = &p->ready; q = &p->ready;
relock: relock:
lock(&p->readylock); lock(&p->readylock);
if(q->head == nil){ if(p->nsched%128 == 0){
/* clean up children */
e = errno; e = errno;
if((c = _threadwaitchan) != nil){ if((c = _threadwaitchan) != nil){
if(c->n <= c->s){ if(c->n <= c->s){
@ -131,6 +132,8 @@ relock:
free(w); free(w);
} }
errno = e; errno = e;
}
if(q->head == nil){
if(p->idle){ if(p->idle){
if(p->idle->state != Ready){ if(p->idle->state != Ready){
fprint(2, "everyone is asleep\n"); fprint(2, "everyone is asleep\n");
@ -204,6 +207,7 @@ Resched:
t->state = Running; t->state = Running;
t->nextstate = Ready; t->nextstate = Ready;
_gotolabel(&t->sched); _gotolabel(&t->sched);
for(;;);
} }
} }