sched_4bsd.c File Reference

#include <sys/cdefs.h>
#include "opt_hwpmc_hooks.h"
#include "opt_sched.h"
#include "opt_kdtrace.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/cpuset.h>
#include <sys/kernel.h>
#include <sys/ktr.h>
#include <sys/lock.h>
#include <sys/kthread.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/resourcevar.h>
#include <sys/sched.h>
#include <sys/sdt.h>
#include <sys/smp.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/turnstile.h>
#include <sys/umtx.h>
#include <machine/pcb.h>
#include <machine/smp.h>

Include dependency graph for sched_4bsd.c:

Go to the source code of this file.

Data Structures
struct	td_sched
struct	pcpuidlestat

Macros
#define	ESTCPULIM(e)
#define	INVERSE_ESTCPU_WEIGHT   8 /* 1 / (priorities per estcpu level). */
#define	NICE_WEIGHT   1 /* Priorities per nice level. */
#define	TS_NAME_LEN   (MAXCOMLEN + sizeof(" td ") + sizeof(__XSTRING(UINT_MAX)))
#define	TDF_DIDRUN   TDF_SCHED0 /* thread actually ran. */
#define	TDF_BOUND   TDF_SCHED1 /* Bound to one CPU. */
#define	TDF_SLICEEND   TDF_SCHED2 /* Thread time slice is over. */
#define	TSF_AFFINITY   0x0001 /* Has a non-"full" CPU set. */
#define	SKE_RUNQ_PCPU(ts)   ((ts)->ts_runq != 0 && (ts)->ts_runq != &runq)
#define	THREAD_CAN_SCHED(td, cpu)   CPU_ISSET((cpu), &(td)->td_cpuset->cs_mask)
#define	loadfactor(loadav)   (2 * (loadav))
#define	decay_cpu(loadfac, cpu)   (((loadfac) * (cpu)) / ((loadfac) + FSCALE))
#define	CCPU_SHIFT   11

Functions
	__FBSDID ("$BSDSUniX$")
static void	setup_runqs (void)
static void	schedcpu (void)
static void	schedcpu_thread (void)
static void	sched_priority (struct thread *td, u_char prio)
static void	sched_setup (void *dummy)
static void	maybe_resched (struct thread *td)
static void	updatepri (struct thread *td)
static void	resetpriority (struct thread *td)
static void	resetpriority_thread (struct thread *td)
	SYSINIT (schedcpu, SI_SUB_LAST, SI_ORDER_FIRST, kproc_start,&sched_kp)
	SYSINIT (sched_setup, SI_SUB_RUN_QUEUE, SI_ORDER_FIRST, sched_setup, NULL)
static void	sched_initticks (void *dummy)
	SYSINIT (sched_initticks, SI_SUB_CLOCKS, SI_ORDER_THIRD, sched_initticks, NULL)
static	DPCPU_DEFINE (struct pcpuidlestat, idlestat)
static int	sysctl_kern_quantum (SYSCTL_HANDLER_ARGS)
	SYSCTL_NODE (_kern, OID_AUTO, sched, CTLFLAG_RD, 0,"Scheduler")
	SYSCTL_STRING (_kern_sched, OID_AUTO, name, CTLFLAG_RD,"4BSD", 0,"Scheduler name")
	SYSCTL_PROC (_kern_sched, OID_AUTO, quantum, CTLTYPE_INT|CTLFLAG_RW, NULL, 0, sysctl_kern_quantum,"I","Quantum for timeshare threads in microseconds")
	SYSCTL_INT (_kern_sched, OID_AUTO, slice, CTLFLAG_RW,&sched_slice, 0,"Quantum for timeshare threads in stathz ticks")
	SDT_PROVIDER_DEFINE (sched)
	SDT_PROBE_DEFINE3 (sched,,, change__pri,"struct thread *","struct proc *","uint8_t")
	SDT_PROBE_DEFINE3 (sched,,, dequeue,"struct thread *","struct proc *","void *")
	SDT_PROBE_DEFINE4 (sched,,, enqueue,"struct thread *","struct proc *","void *","int")
	SDT_PROBE_DEFINE4 (sched,,, lend__pri,"struct thread *","struct proc *","uint8_t","struct thread *")
	SDT_PROBE_DEFINE2 (sched,,, load__change,"int","int")
	SDT_PROBE_DEFINE2 (sched,,, off__cpu,"struct thread *","struct proc *")
	SDT_PROBE_DEFINE (sched,,, on__cpu)
	SDT_PROBE_DEFINE (sched,,, remain__cpu)
	SDT_PROBE_DEFINE2 (sched,,, surrender,"struct thread *","struct proc *")
static __inline void	sched_load_add (void)
static __inline void	sched_load_rem (void)
int	maybe_preempt (struct thread *td)
	SYSCTL_UINT (_kern, OID_AUTO, ccpu, CTLFLAG_RD,&ccpu, 0,"")
void	schedinit (void)
int	sched_runnable (void)
int	sched_rr_interval (void)
void	sched_clock (struct thread *td)
void	sched_exit (struct proc *p, struct thread *td)
void	sched_exit_thread (struct thread *td, struct thread *child)
void	sched_fork (struct thread *td, struct thread *childtd)
void	sched_fork_thread (struct thread *td, struct thread *childtd)
void	sched_nice (struct proc *p, int nice)
void	sched_class (struct thread *td, int class)
void	sched_lend_prio (struct thread *td, u_char prio)
void	sched_unlend_prio (struct thread *td, u_char prio)
void	sched_prio (struct thread *td, u_char prio)
void	sched_user_prio (struct thread *td, u_char prio)
void	sched_lend_user_prio (struct thread *td, u_char prio)
void	sched_sleep (struct thread *td, int pri)
void	sched_switch (struct thread *td, struct thread *newtd, int flags)
void	sched_wakeup (struct thread *td)
void	sched_add (struct thread *td, int flags)
void	sched_rem (struct thread *td)
struct thread *	sched_choose (void)
void	sched_preempt (struct thread *td)
void	sched_userret (struct thread *td)
void	sched_bind (struct thread *td, int cpu)
void	sched_unbind (struct thread *td)
int	sched_is_bound (struct thread *td)
void	sched_relinquish (struct thread *td)
int	sched_load (void)
int	sched_sizeof_proc (void)
int	sched_sizeof_thread (void)
fixpt_t	sched_pctcpu (struct thread *td)
void	sched_tick (int cnt)
void	sched_idletd (void *dummy)
void	sched_throw (struct thread *td)
void	sched_fork_exit (struct thread *td)
char *	sched_tdname (struct thread *td)
void	sched_affinity (struct thread *td)

Variables
static struct td_sched	td_sched0
struct mtx	sched_lock
static int	realstathz = 127
static int	sched_tdcnt
static int	sched_slice = 12
static struct kproc_desc	sched_kp
static struct runq	runq
static fixpt_t	ccpu = 0.95122942450071400909 * FSCALE

Macro Definition Documentation

#define CCPU_SHIFT   11

Definition at line 468 of file sched_4bsd.c.

Referenced by schedcpu().

#define decay_cpu	(		loadfac,
			cpu
	)		(((loadfac) * (cpu)) / ((loadfac) + FSCALE))

Definition at line 450 of file sched_4bsd.c.

Referenced by schedcpu(), and updatepri().

#define ESTCPULIM

(

e

)

Value:

min((e), INVERSE_ESTCPU_WEIGHT * (NICE_WEIGHT * (PRIO_MAX - PRIO_MIN) - \
    RQ_PPQ) + INVERSE_ESTCPU_WEIGHT - 1)

Definition at line 76 of file sched_4bsd.c.

Referenced by sched_clock(), and sched_exit_thread().

#define INVERSE_ESTCPU_WEIGHT   8 /* 1 / (priorities per estcpu level). */

Definition at line 82 of file sched_4bsd.c.

Referenced by resetpriority(), and sched_clock().

#define loadfactor

(

loadav

)

(2 * (loadav))

Definition at line 449 of file sched_4bsd.c.

Referenced by schedcpu(), and updatepri().

#define NICE_WEIGHT   1 /* Priorities per nice level. */

Definition at line 84 of file sched_4bsd.c.

Referenced by resetpriority().

#define SKE_RUNQ_PCPU

(

ts

)

((ts)->ts_runq != 0 && (ts)->ts_runq != &runq)

Definition at line 113 of file sched_4bsd.c.

Referenced by sched_add().

#define TDF_BOUND   TDF_SCHED1 /* Bound to one CPU. */

Definition at line 107 of file sched_4bsd.c.

Referenced by sched_add(), sched_affinity(), sched_bind(), sched_is_bound(), and sched_unbind().

#define TDF_DIDRUN   TDF_SCHED0 /* thread actually ran. */

Definition at line 106 of file sched_4bsd.c.

Referenced by sched_choose(), sched_switch(), and schedcpu().

#define TDF_SLICEEND   TDF_SCHED2 /* Thread time slice is over. */

Definition at line 108 of file sched_4bsd.c.

Referenced by sched_clock(), and sched_switch().

#define THREAD_CAN_SCHED	(		td,
			cpu
	)		CPU_ISSET((cpu), &(td)->td_cpuset->cs_mask)

Definition at line 116 of file sched_4bsd.c.

Referenced by sched_affinity().

#define TS_NAME_LEN   (MAXCOMLEN + sizeof(" td ") + sizeof(__XSTRING(UINT_MAX)))

Definition at line 86 of file sched_4bsd.c.

#define TSF_AFFINITY   0x0001 /* Has a non-"full" CPU set. */

Definition at line 111 of file sched_4bsd.c.

Referenced by sched_add(), sched_affinity(), and sched_fork_thread().

Function Documentation

__FBSDID

(

"$BSDSUniX$"

)

static DPCPU_DEFINE ( struct pcpuidlestat  , idlestat    )

static

int maybe_preempt

(

struct thread *

td

)

Definition at line 312 of file sched_4bsd.c.

References mi_switch(), and panicstr.

Referenced by sched_add().

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static void maybe_resched ( struct thread *  td )

static

Definition at line 296 of file sched_4bsd.c.

Referenced by resetpriority_thread(), and sched_add().

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static void resetpriority ( struct thread *  td )

static

Definition at line 617 of file sched_4bsd.c.

References INVERSE_ESTCPU_WEIGHT, NICE_WEIGHT, and sched_user_prio().

Referenced by sched_clock(), sched_nice(), sched_wakeup(), and schedcpu().

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static void resetpriority_thread ( struct thread *  td )

static

Definition at line 635 of file sched_4bsd.c.

References maybe_resched(), and sched_prio().

Referenced by sched_clock(), sched_nice(), and schedcpu().

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void sched_add	(	struct thread *	td,
		int	flags
	)

Definition at line 1258 of file sched_4bsd.c.

References maybe_preempt(), maybe_resched(), runq, runq_add(), sched_load_add(), sched_lock, sched_tdname(), SKE_RUNQ_PCPU, smp_started, TDF_BOUND, thread_lock_set(), ts, td_sched::ts_flags, td_sched::ts_runq, and TSF_AFFINITY.

Referenced by create_thread(), do_fork(), intr_event_schedule_thread(), ithread_destroy(), kick_init(), kproc_create(), kthread_add(), sched_affinity(), sched_priority(), sched_switch(), sched_wakeup(), taskqueue_start_threads(), and turnstile_unpend().

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void sched_affinity

(

struct thread *

td

)

Definition at line 1727 of file sched_4bsd.c.

References runq, sched_add(), sched_rem(), TDF_BOUND, THREAD_CAN_SCHED, ts, td_sched::ts_flags, td_sched::ts_runq, and TSF_AFFINITY.

Referenced by cpuset_setproc(), and cpuset_setthread().

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void sched_bind	(	struct thread *	td,
		int	cpu
	)

Definition at line 1521 of file sched_4bsd.c.

References mi_switch(), TDF_BOUND, ts, and td_sched::ts_runq.

Referenced by cf_set_method(), and kern_reboot().

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struct thread* sched_choose

(

void

)

Definition at line 1441 of file sched_4bsd.c.

References runq, runq_choose(), runq_choose_fuzz(), runq_remove(), sched_lock, and TDF_DIDRUN.

Referenced by choosethread().

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void sched_class	(	struct thread *	td,
		int	class
	)

Definition at line 824 of file sched_4bsd.c.

Referenced by idle_setup(), ithread_create(), and rtp_to_pri().

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void sched_clock

(

struct thread *

td

)

Definition at line 727 of file sched_4bsd.c.

References ESTCPULIM, pcpuidlestat::idlecalls, INVERSE_ESTCPU_WEIGHT, pcpuidlestat::oldidlecalls, resetpriority(), resetpriority_thread(), sched_slice, TDF_SLICEEND, ts, td_sched::ts_cpticks, and td_sched::ts_slice.

Referenced by statclock_cnt().

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void sched_exit	(	struct proc *	p,
		struct thread *	td
	)

Definition at line 760 of file sched_4bsd.c.

References sched_exit_thread(), and sched_tdname().

Referenced by exit1().

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void sched_exit_thread	(	struct thread *	td,
		struct thread *	child
	)

Definition at line 771 of file sched_4bsd.c.

References ESTCPULIM, sched_load_rem(), and sched_tdname().

Referenced by sched_exit(), and thread_exit().

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void sched_fork	(	struct thread *	td,
		struct thread *	childtd
	)

Definition at line 786 of file sched_4bsd.c.

References sched_fork_thread().

Referenced by do_fork().

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void sched_fork_exit

(

struct thread *

td

)

Definition at line 1685 of file sched_4bsd.c.

References sched_lock.

Referenced by fork_exit().

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void sched_fork_thread	(	struct thread *	td,
		struct thread *	childtd
	)

Definition at line 792 of file sched_4bsd.c.

References cpuset_ref(), sched_lock, ts, td_sched::ts_flags, td_sched::ts_slice, and TSF_AFFINITY.

Referenced by create_thread(), kthread_add(), and sched_fork().

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void sched_idletd

(

void *

dummy

)

Definition at line 1634 of file sched_4bsd.c.

References Giant, pcpuidlestat::idlecalls, mi_switch(), pcpuidlestat::oldidlecalls, sched_lock, and sched_runnable().

Referenced by idle_setup().

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static void sched_initticks ( void *  dummy )

static

Definition at line 664 of file sched_4bsd.c.

References hogticks, hz, realstathz, sched_slice, and stathz.

int sched_is_bound

(

struct thread *

td

)

Definition at line 1549 of file sched_4bsd.c.

References TDF_BOUND.

void sched_lend_prio	(	struct thread *	td,
		u_char	prio
	)

Definition at line 864 of file sched_4bsd.c.

References sched_priority().

Referenced by propagate_priority(), sched_unlend_prio(), and turnstile_claim().

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void sched_lend_user_prio	(	struct thread *	td,
		u_char	prio
	)

Definition at line 935 of file sched_4bsd.c.

References sched_prio().

Referenced by _do_lock_pp(), do_unlock_pi(), do_unlock_pp(), umtx_pi_claim(), umtx_propagate_priority(), umtx_repropagate_priority(), and umtx_thread_cleanup().

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int sched_load

(

void

)

Definition at line 1564 of file sched_4bsd.c.

References sched_tdcnt.

Referenced by loadav().

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static __inline void sched_load_add ( void  )

static

Definition at line 275 of file sched_4bsd.c.

References sched_tdcnt.

Referenced by sched_add(), sched_setup(), and sched_switch().

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static __inline void sched_load_rem ( void  )

static

Definition at line 284 of file sched_4bsd.c.

References sched_tdcnt.

Referenced by sched_exit_thread(), sched_rem(), and sched_switch().

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void sched_nice	(	struct proc *	p,
		int	nice
	)

Definition at line 809 of file sched_4bsd.c.

References resetpriority(), and resetpriority_thread().

Referenced by donice().

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fixpt_t sched_pctcpu

(

struct thread *

td

)

Definition at line 1582 of file sched_4bsd.c.

References ts, and td_sched::ts_pctcpu.

Referenced by fill_kinfo_aggregate(), fill_kinfo_thread(), proc_sum(), thread_compare(), and tty_info().

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void sched_preempt

(

struct thread *

td

)

Definition at line 1486 of file sched_4bsd.c.

References mi_switch().

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void sched_prio	(	struct thread *	td,
		u_char	prio
	)

Definition at line 897 of file sched_4bsd.c.

References sched_priority(), and turnstile_adjust().

Referenced by acct_thread(), ast(), create_thread(), idle_setup(), ithread_update(), kern_yield(), kproc_create(), resetpriority_thread(), rtp_to_pri(), sched_lend_user_prio(), sched_sleep(), sched_sync(), sched_unlend_prio(), sleepq_resume_thread(), sys_yield(), taskqueue_start_threads(), and tdsigwakeup().

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static void sched_priority ( struct thread *  td, u_char  prio  )

static

Definition at line 834 of file sched_4bsd.c.

References sched_add(), sched_rem(), and sched_tdname().

Referenced by sched_lend_prio(), and sched_prio().

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void sched_relinquish

(

struct thread *

td

)

Definition at line 1556 of file sched_4bsd.c.

References mi_switch().

Referenced by ksched_yield(), and thread_wait().

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void sched_rem

(

struct thread *

td

)

Definition at line 1411 of file sched_4bsd.c.

References runq, runq_remove(), sched_load_rem(), sched_lock, sched_tdname(), ts, and td_sched::ts_runq.

Referenced by sched_affinity(), and sched_priority().

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int sched_rr_interval

(

void

)

Definition at line 705 of file sched_4bsd.c.

References hz, realstathz, and sched_slice.

Referenced by ksched_attach().

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int sched_runnable

(

void

)

Definition at line 695 of file sched_4bsd.c.

References runq, and runq_check().

Referenced by sched_idletd().

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static void sched_setup ( void *  dummy )

static

Definition at line 651 of file sched_4bsd.c.

References sched_load_add(), and setup_runqs().

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int sched_sizeof_proc

(

void

)

Definition at line 1570 of file sched_4bsd.c.

Referenced by procinit().

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int sched_sizeof_thread

(

void

)

Definition at line 1576 of file sched_4bsd.c.

Referenced by threadinit().

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void sched_sleep	(	struct thread *	td,
		int	pri
	)

Definition at line 948 of file sched_4bsd.c.

References sched_prio(), and ticks.

Referenced by sleepq_switch(), thread_suspend_one(), and thread_suspend_switch().

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void sched_switch	(	struct thread *	td,
		struct thread *	newtd,
		int	flags
	)

Definition at line 961 of file sched_4bsd.c.

References choosethread(), sched_add(), sched_load_add(), sched_load_rem(), sched_lock, TDF_DIDRUN, TDF_SLICEEND, thread_lock_block(), and ts.

Referenced by mi_switch().

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char* sched_tdname

(

struct thread *

td

)

Definition at line 1700 of file sched_4bsd.c.

References snprintf(), and ts.

Referenced by mi_switch(), sched_add(), sched_exit(), sched_exit_thread(), sched_priority(), sched_rem(), and statclock_cnt().

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void sched_throw

(

struct thread *

td

)

Definition at line 1657 of file sched_4bsd.c.

References choosethread(), cpu_ticks, sched_lock, and ticks.

Referenced by thread_exit().

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void sched_tick

(

int

cnt

)

Definition at line 1626 of file sched_4bsd.c.

Referenced by hardclock_cnt(), and hardclock_cpu().

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void sched_unbind

(

struct thread *

td

)

Definition at line 1541 of file sched_4bsd.c.

References TDF_BOUND.

Referenced by cf_set_method().

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void sched_unlend_prio	(	struct thread *	td,
		u_char	prio
	)

Definition at line 880 of file sched_4bsd.c.

References sched_lend_prio(), and sched_prio().

Referenced by turnstile_disown(), and turnstile_unpend().

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void sched_user_prio	(	struct thread *	td,
		u_char	prio
	)

Definition at line 924 of file sched_4bsd.c.

Referenced by kproc_create(), resetpriority(), and rtp_to_pri().

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void sched_userret

(

struct thread *

td

)

Definition at line 1499 of file sched_4bsd.c.

Referenced by userret().

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void sched_wakeup

(

struct thread *

td

)

Definition at line 1091 of file sched_4bsd.c.

References resetpriority(), sched_add(), sched_slice, ts, td_sched::ts_slice, td_sched::ts_slptime, and updatepri().

Referenced by setrunnable().

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static void schedcpu ( void  )

static

Definition at line 476 of file sched_4bsd.c.

References allproc_lock, averunnable, ccpu, CCPU_SHIFT, decay_cpu, loadfactor, realstathz, resetpriority(), resetpriority_thread(), TDF_DIDRUN, ts, td_sched::ts_cpticks, td_sched::ts_pctcpu, td_sched::ts_slptime, and updatepri().

Referenced by schedcpu_thread().

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static void schedcpu_thread ( void  )

static

Definition at line 577 of file sched_4bsd.c.

References hz, pause(), and schedcpu().

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void schedinit

(

void

)

Definition at line 682 of file sched_4bsd.c.

References mtx_init(), proc0, sched_lock, sched_slice, td_sched0, and td_sched::ts_slice.

Referenced by proc0_init().

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SDT_PROBE_DEFINE	(	sched	,
		on__cpu
	)

SDT_PROBE_DEFINE	(	sched	,
		remain__cpu
	)

SDT_PROBE_DEFINE2	(	sched	,
		load__change	,
		"int"	,
		"int"
	)

SDT_PROBE_DEFINE2	(	sched	,
		off__cpu	,
		"struct thread *"	,
		"struct proc *"
	)

SDT_PROBE_DEFINE2	(	sched	,
		surrender	,
		"struct thread *"	,
		"struct proc *"
	)

SDT_PROBE_DEFINE3	(	sched	,
		change__pri	,
		"struct thread *"	,
		"struct proc *"	,
		"uint8_t"
	)

SDT_PROBE_DEFINE3	(	sched	,
		dequeue	,
		"struct thread *"	,
		"struct proc *"	,
		"void *"
	)

SDT_PROBE_DEFINE4	(	sched	,
		enqueue	,
		"struct thread *"	,
		"struct proc *"	,
		"void *"	,
		"int"
	)

SDT_PROBE_DEFINE4	(	sched	,
		lend__pri	,
		"struct thread *"	,
		"struct proc *"	,
		"uint8_t"	,
		"struct thread *"
	)

SDT_PROVIDER_DEFINE

(

sched

)

static void setup_runqs ( void  )

static

Definition at line 176 of file sched_4bsd.c.

References runq, and runq_init().

Referenced by sched_setup().

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SYSCTL_INT	(	_kern_sched	,
		OID_AUTO	,
		slice	,
		CTLFLAG_RW	,
		&	sched_slice,
		0	,
		"Quantum for timeshare threads in stathz ticks"
	)

static int sysctl_kern_quantum ( SYSCTL_HANDLER_ARGS  )

static

Definition at line 189 of file sched_4bsd.c.

References hogticks, hz, realstathz, sched_slice, and sysctl_handle_int().

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SYSCTL_NODE	(	_kern	,
		OID_AUTO	,
		sched	,
		CTLFLAG_RD	,
		0	,
		"Scheduler"
	)

SYSCTL_PROC	(	_kern_sched	,
		OID_AUTO	,
		quantum	,
		CTLTYPE_INT|	CTLFLAG_RW,
		NULL	,
		0	,
		sysctl_kern_quantum	,
		"I"	,
		"Quantum for timeshare threads in microseconds"
	)

SYSCTL_STRING	(	_kern_sched	,
		OID_AUTO	,
		name	,
		CTLFLAG_RD	,
		"4BSD"	,
		0	,
		"Scheduler name"
	)

SYSCTL_UINT	(	_kern	,
		OID_AUTO	,
		ccpu	,
		CTLFLAG_RD	,
		&	ccpu,
		0	,
		""
	)

SYSINIT	(	schedcpu	,
		SI_SUB_LAST	,
		SI_ORDER_FIRST	,
		kproc_start	,
		&	sched_kp
	)

SYSINIT	(	sched_setup	,
		SI_SUB_RUN_QUEUE	,
		SI_ORDER_FIRST	,
		sched_setup	,
		NULL
	)

SYSINIT	(	sched_initticks	,
		SI_SUB_CLOCKS	,
		SI_ORDER_THIRD	,
		sched_initticks	,
		NULL
	)

static void updatepri ( struct thread *  td )

static

Definition at line 592 of file sched_4bsd.c.

References averunnable, decay_cpu, loadfactor, ts, and td_sched::ts_slptime.

Referenced by sched_wakeup(), and schedcpu().

Here is the caller graph for this function:

Variable Documentation

fixpt_t ccpu = 0.95122942450071400909 * FSCALE

static

Definition at line 453 of file sched_4bsd.c.

Referenced by schedcpu().

int realstathz = 127

static

Definition at line 122 of file sched_4bsd.c.

Referenced by sched_initticks(), sched_rr_interval(), schedcpu(), and sysctl_kern_quantum().

struct runq runq

static

Definition at line 157 of file sched_4bsd.c.

Referenced by sched_add(), sched_affinity(), sched_choose(), sched_rem(), sched_runnable(), and setup_runqs().

struct kproc_desc sched_kp

static

Initial value:

= {
        "schedcpu",
        schedcpu_thread,
        NULL
}

Definition at line 141 of file sched_4bsd.c.

struct mtx sched_lock

Definition at line 120 of file sched_4bsd.c.

Referenced by sched_add(), sched_choose(), sched_fork_exit(), sched_fork_thread(), sched_idletd(), sched_rem(), sched_switch(), sched_throw(), and schedinit().

int sched_slice = 12

static

Definition at line 124 of file sched_4bsd.c.

Referenced by sched_clock(), sched_initticks(), sched_rr_interval(), sched_wakeup(), schedinit(), and sysctl_kern_quantum().

int sched_tdcnt

static

Definition at line 123 of file sched_4bsd.c.

Referenced by sched_load(), sched_load_add(), and sched_load_rem().

struct td_sched td_sched0

static

Definition at line 119 of file sched_4bsd.c.

Referenced by schedinit().