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- Remove long dead code. rslices hasn't been used in some time and neither

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has sched_pickcpu().
This commit is contained in:
Jeff Roberson 2003-11-17 08:24:14 +00:00
parent e5f467a2e7
commit 093c05e39d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=122847
1 changed files with 4 additions and 52 deletions
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56
sys/kern/sched_ule.c
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@ -218,9 +218,8 @@ struct kseq {
#ifdef SMP
int ksq_load_transferable; /* kses that may be migrated. */
int ksq_idled;
unsigned int ksq_rslices; /* Slices on run queue */
int ksq_cpus; /* Count of CPUs in this kseq. */
struct kse *ksq_assigned; /* KSEs assigned by another CPU. */
struct kse *ksq_assigned; /* assigned by another CPU. */
#endif
};
@ -257,9 +256,6 @@ static void kseq_nice_add(struct kseq *kseq, int nice);
static void kseq_nice_rem(struct kseq *kseq, int nice);
void kseq_print(int cpu);
#ifdef SMP
#if 0
static int sched_pickcpu(void);
#endif
static struct kse *runq_steal(struct runq *rq);
static void sched_balance(void *arg);
static void kseq_move(struct kseq *from, int cpu);
@ -322,9 +318,6 @@ kseq_load_add(struct kseq *kseq, struct kse *ke)
class = PRI_BASE(ke->ke_ksegrp->kg_pri_class);
if (class == PRI_TIMESHARE)
kseq->ksq_load_timeshare++;
#ifdef SMP
kseq->ksq_rslices += ke->ke_slice;
#endif
kseq->ksq_load++;
if (ke->ke_ksegrp->kg_pri_class == PRI_TIMESHARE)
CTR6(KTR_ULE,
@ -343,9 +336,6 @@ kseq_load_rem(struct kseq *kseq, struct kse *ke)
class = PRI_BASE(ke->ke_ksegrp->kg_pri_class);
if (class == PRI_TIMESHARE)
kseq->ksq_load_timeshare--;
#ifdef SMP
kseq->ksq_rslices -= ke->ke_slice;
#endif
kseq->ksq_load--;
ke->ke_runq = NULL;
if (ke->ke_ksegrp->kg_pri_class == PRI_TIMESHARE)
@ -628,7 +618,6 @@ kseq_setup(struct kseq *kseq)
kseq->ksq_load_timeshare = 0;
#ifdef SMP
kseq->ksq_load_transferable = 0;
kseq->ksq_rslices = 0;
kseq->ksq_idled = 0;
kseq->ksq_assigned = NULL;
#endif
@ -863,38 +852,6 @@ sched_pctcpu_update(struct kse *ke)
ke->ke_ftick = ke->ke_ltick - SCHED_CPU_TICKS;
}
#if 0
/* XXX Should be changed to kseq_load_lowest() */
int
sched_pickcpu(void)
{
struct kseq *kseq;
int load;
int cpu;
int i;
mtx_assert(&sched_lock, MA_OWNED);
if (!smp_started)
return (0);
load = 0;
cpu = 0;
for (i = 0; i < mp_maxid; i++) {
if (CPU_ABSENT(i) || (i & stopped_cpus) != 0)
continue;
kseq = KSEQ_CPU(i);
if (kseq->ksq_load < load) {
cpu = i;
load = kseq->ksq_load;
}
}
CTR1(KTR_ULE, "sched_pickcpu: %d", cpu);
return (cpu);
}
#endif
void
sched_prio(struct thread *td, u_char prio)
{
@ -1062,7 +1019,7 @@ sched_fork_kse(struct kse *ke, struct kse *child)
{
child->ke_slice = 1; /* Attempt to quickly learn interactivity. */
child->ke_cpu = ke->ke_cpu; /* sched_pickcpu(); */
child->ke_cpu = ke->ke_cpu;
child->ke_runq = NULL;
/* Grab our parents cpu estimation information. */
@ -1227,17 +1184,12 @@ sched_clock(struct thread *td)
/*
* We used up one time slice.
*/
ke->ke_slice--;
kseq = KSEQ_SELF();
#ifdef SMP
kseq->ksq_rslices--;
#endif
if (ke->ke_slice > 0)
if (--ke->ke_slice > 0)
return;
/*
* We're out of time, recompute priorities and requeue.
*/
kseq = KSEQ_SELF();
kseq_load_rem(kseq, ke);
sched_priority(kg);
sched_slice(ke);