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- Disable ithread binding in all cases for now. This doesn't make as much

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sense with sched_4bsd as it does with sched_ule.
 - Use P_NOLOAD instead of the absence of td->td_ithd to determine whether or
   not a thread should be accounted for in sched_tdcnt.
This commit is contained in:
Jeff Roberson 2004-02-01 06:20:18 +00:00
parent aaa8bb1604
commit f2f51f8ab8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=125295
1 changed files with 5 additions and 13 deletions
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18
sys/kern/sched_4bsd.c
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@ -81,18 +81,10 @@ struct ke_sched {
/*
* KSE_CAN_MIGRATE macro returns true if the kse can migrate between
* cpus. Currently ithread cpu binding is disabled on x86 due to a
* bug in the Xeon round-robin interrupt delivery that delivers all
* interrupts to cpu 0.
* cpus.
*/
#ifdef __i386__
#define KSE_CAN_MIGRATE(ke) \
((ke)->ke_thread->td_pinned == 0 && ((ke)->ke_flags & KEF_BOUND) == 0)
#else
#define KSE_CAN_MIGRATE(ke) \
PRI_BASE((ke)->ke_ksegrp->kg_pri_class) != PRI_ITHD && \
((ke)->ke_thread->td_pinned == 0 &&((ke)->ke_flags & KEF_BOUND) == 0)
#endif
static struct ke_sched ke_sched;
struct ke_sched *kse0_sched = &ke_sched;
@ -564,7 +556,7 @@ sched_exit_ksegrp(struct ksegrp *kg, struct ksegrp *child)
void
sched_exit_thread(struct thread *td, struct thread *child)
{
if (td->td_ithd == NULL)
if ((td->td_proc->p_flag & P_NOLOAD) == 0)
sched_tdcnt--;
}
@ -651,7 +643,7 @@ sched_switch(struct thread *td)
mtx_assert(&sched_lock, MA_OWNED);
KASSERT((ke->ke_state == KES_THREAD), ("sched_switch: kse state?"));
if ((td->td_flags & TDF_IDLETD) == 0 && td->td_ithd == NULL)
if ((p->p_flag & P_NOLOAD) == 0)
sched_tdcnt--;
td->td_lastcpu = td->td_oncpu;
td->td_last_kse = ke;
@ -724,7 +716,7 @@ sched_add(struct thread *td)
#else
ke->ke_runq = &runq;
#endif
if (td->td_ithd == NULL)
if ((td->td_proc->p_flag & P_NOLOAD) == 0)
sched_tdcnt++;
runq_add(ke->ke_runq, ke);
}
@ -741,7 +733,7 @@ sched_rem(struct thread *td)
("sched_rem: KSE not on run queue"));
mtx_assert(&sched_lock, MA_OWNED);
if (td->td_ithd == NULL)
if ((td->td_proc->p_flag & P_NOLOAD) == 0)
sched_tdcnt--;
runq_remove(ke->ke_sched->ske_runq, ke);