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Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched

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* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched: (140 commits)
  sched: sync wakeups preempt too
  sched: affine sync wakeups
  sched: guest CPU accounting: maintain guest state in KVM
  sched: guest CPU accounting: maintain stats in account_system_time()
  sched: guest CPU accounting: add guest-CPU /proc/<pid>/stat fields
  sched: guest CPU accounting: add guest-CPU /proc/stat field
  sched: domain sysctl fixes: add terminator comment
  sched: domain sysctl fixes: do not crash on allocation failure
  sched: domain sysctl fixes: unregister the sysctl table before domains
  sched: domain sysctl fixes: use for_each_online_cpu()
  sched: domain sysctl fixes: use kcalloc()
  Make scheduler debug file operations const
  sched: enable wake-idle on CONFIG_SCHED_MC=y
  sched: reintroduce topology.h tunings
  sched: allow the immediate migration of cache-cold tasks
  sched: debug, improve migration statistics
  sched: debug: increase width of debug line
  sched: activate task_hot() only on fair-scheduled tasks
  sched: reintroduce cache-hot affinity
  sched: speed up context-switches a bit
  ...
This commit is contained in:
Linus Torvalds
2007-10-15 08:22:16 -07:00
parent df3d80f5a5 9c63d9c021
commit b5869ce7f6
25 changed files with 1891 additions and 1307 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/linux/kernel_stat.h
+1
View File
@@ -23,6 +23,7 @@ struct cpu_usage_stat {
cputime64_t idle;
cputime64_t iowait;
cputime64_t steal;
cputime64_t guest;
};
struct kernel_stat {
include/linux/sched.h
+70 -27
View File
@@ -87,6 +87,7 @@ struct sched_param {
#include <linux/timer.h>
#include <linux/hrtimer.h>
#include <linux/task_io_accounting.h>
#include <linux/kobject.h>
#include <asm/processor.h>
@@ -136,6 +137,7 @@ extern unsigned long weighted_cpuload(const int cpu);
struct seq_file;
struct cfs_rq;
struct task_group;
#ifdef CONFIG_SCHED_DEBUG
extern void proc_sched_show_task(struct task_struct *p, struct seq_file *m);
extern void proc_sched_set_task(struct task_struct *p);
@@ -174,8 +176,7 @@ print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
#define EXIT_ZOMBIE 16
#define EXIT_DEAD 32
/* in tsk->state again */
#define TASK_NONINTERACTIVE 64
#define TASK_DEAD 128
#define TASK_DEAD 64
#define __set_task_state(tsk, state_value) \
do { (tsk)->state = (state_value); } while (0)
@@ -516,6 +517,8 @@ struct signal_struct {
* in __exit_signal, except for the group leader.
*/
cputime_t utime, stime, cutime, cstime;
cputime_t gtime;
cputime_t cgtime;
unsigned long nvcsw, nivcsw, cnvcsw, cnivcsw;
unsigned long min_flt, maj_flt, cmin_flt, cmaj_flt;
unsigned long inblock, oublock, cinblock, coublock;
@@ -596,8 +599,21 @@ struct user_struct {
/* Hash table maintenance information */
struct hlist_node uidhash_node;
uid_t uid;
#ifdef CONFIG_FAIR_USER_SCHED
struct task_group *tg;
struct kset kset;
struct subsys_attribute user_attr;
struct work_struct work;
#endif
};
#ifdef CONFIG_FAIR_USER_SCHED
extern int uids_kobject_init(void);
#else
static inline int uids_kobject_init(void) { return 0; }
#endif
extern struct user_struct *find_user(uid_t);
extern struct user_struct root_user;
@@ -609,13 +625,17 @@ struct reclaim_state;
#if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
struct sched_info {
/* cumulative counters */
unsigned long pcnt; /* # of times run on this cpu */
unsigned long pcount; /* # of times run on this cpu */
unsigned long long cpu_time, /* time spent on the cpu */
run_delay; /* time spent waiting on a runqueue */
/* timestamps */
unsigned long long last_arrival,/* when we last ran on a cpu */
last_queued; /* when we were last queued to run */
#ifdef CONFIG_SCHEDSTATS
/* BKL stats */
unsigned long bkl_count;
#endif
};
#endif /* defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) */
@@ -750,7 +770,7 @@ struct sched_domain {
#ifdef CONFIG_SCHEDSTATS
/* load_balance() stats */
unsigned long lb_cnt[CPU_MAX_IDLE_TYPES];
unsigned long lb_count[CPU_MAX_IDLE_TYPES];
unsigned long lb_failed[CPU_MAX_IDLE_TYPES];
unsigned long lb_balanced[CPU_MAX_IDLE_TYPES];
unsigned long lb_imbalance[CPU_MAX_IDLE_TYPES];
@@ -760,17 +780,17 @@ struct sched_domain {
unsigned long lb_nobusyq[CPU_MAX_IDLE_TYPES];
/* Active load balancing */
unsigned long alb_cnt;
unsigned long alb_count;
unsigned long alb_failed;
unsigned long alb_pushed;
/* SD_BALANCE_EXEC stats */
unsigned long sbe_cnt;
unsigned long sbe_count;
unsigned long sbe_balanced;
unsigned long sbe_pushed;
/* SD_BALANCE_FORK stats */
unsigned long sbf_cnt;
unsigned long sbf_count;
unsigned long sbf_balanced;
unsigned long sbf_pushed;
@@ -854,11 +874,11 @@ struct rq;
struct sched_domain;
struct sched_class {
struct sched_class *next;
const struct sched_class *next;
void (*enqueue_task) (struct rq *rq, struct task_struct *p, int wakeup);
void (*dequeue_task) (struct rq *rq, struct task_struct *p, int sleep);
void (*yield_task) (struct rq *rq, struct task_struct *p);
void (*yield_task) (struct rq *rq);
void (*check_preempt_curr) (struct rq *rq, struct task_struct *p);
@@ -888,31 +908,22 @@ struct load_weight {
* 4 se->block_start
* 4 se->run_node
* 4 se->sleep_start
* 4 se->sleep_start_fair
* 6 se->load.weight
* 7 se->delta_fair
* 15 se->wait_runtime
*/
struct sched_entity {
long wait_runtime;
unsigned long delta_fair_run;
unsigned long delta_fair_sleep;
unsigned long delta_exec;
s64 fair_key;
struct load_weight load; /* for load-balancing */
struct rb_node run_node;
unsigned int on_rq;
int peer_preempt;
u64 exec_start;
u64 sum_exec_runtime;
u64 vruntime;
u64 prev_sum_exec_runtime;
u64 wait_start_fair;
u64 sleep_start_fair;
#ifdef CONFIG_SCHEDSTATS
u64 wait_start;
u64 wait_max;
s64 sum_wait_runtime;
u64 sleep_start;
u64 sleep_max;
@@ -921,9 +932,25 @@ struct sched_entity {
u64 block_start;
u64 block_max;
u64 exec_max;
u64 slice_max;
unsigned long wait_runtime_overruns;
unsigned long wait_runtime_underruns;
u64 nr_migrations;
u64 nr_migrations_cold;
u64 nr_failed_migrations_affine;
u64 nr_failed_migrations_running;
u64 nr_failed_migrations_hot;
u64 nr_forced_migrations;
u64 nr_forced2_migrations;
u64 nr_wakeups;
u64 nr_wakeups_sync;
u64 nr_wakeups_migrate;
u64 nr_wakeups_local;
u64 nr_wakeups_remote;
u64 nr_wakeups_affine;
u64 nr_wakeups_affine_attempts;
u64 nr_wakeups_passive;
u64 nr_wakeups_idle;
#endif
#ifdef CONFIG_FAIR_GROUP_SCHED
@@ -952,7 +979,7 @@ struct task_struct {
int prio, static_prio, normal_prio;
struct list_head run_list;
struct sched_class *sched_class;
const struct sched_class *sched_class;
struct sched_entity se;
#ifdef CONFIG_PREEMPT_NOTIFIERS
@@ -1023,6 +1050,7 @@ struct task_struct {
unsigned int rt_priority;
cputime_t utime, stime;
cputime_t gtime;
unsigned long nvcsw, nivcsw; /* context switch counts */
struct timespec start_time; /* monotonic time */
struct timespec real_start_time; /* boot based time */
@@ -1314,6 +1342,7 @@ static inline void put_task_struct(struct task_struct *t)
#define PF_STARTING 0x00000002 /* being created */
#define PF_EXITING 0x00000004 /* getting shut down */
#define PF_EXITPIDONE 0x00000008 /* pi exit done on shut down */
#define PF_VCPU 0x00000010 /* I'm a virtual CPU */
#define PF_FORKNOEXEC 0x00000040 /* forked but didn't exec */
#define PF_SUPERPRIV 0x00000100 /* used super-user privileges */
#define PF_DUMPCORE 0x00000200 /* dumped core */
@@ -1401,15 +1430,17 @@ static inline void idle_task_exit(void) {}
extern void sched_idle_next(void);
#ifdef CONFIG_SCHED_DEBUG
extern unsigned int sysctl_sched_latency;
extern unsigned int sysctl_sched_min_granularity;
extern unsigned int sysctl_sched_nr_latency;
extern unsigned int sysctl_sched_wakeup_granularity;
extern unsigned int sysctl_sched_batch_wakeup_granularity;
extern unsigned int sysctl_sched_stat_granularity;
extern unsigned int sysctl_sched_runtime_limit;
extern unsigned int sysctl_sched_compat_yield;
extern unsigned int sysctl_sched_child_runs_first;
extern unsigned int sysctl_sched_features;
extern unsigned int sysctl_sched_migration_cost;
#endif
extern unsigned int sysctl_sched_compat_yield;
#ifdef CONFIG_RT_MUTEXES
extern int rt_mutex_getprio(struct task_struct *p);
@@ -1843,6 +1874,18 @@ extern int sched_mc_power_savings, sched_smt_power_savings;
extern void normalize_rt_tasks(void);
#ifdef CONFIG_FAIR_GROUP_SCHED
extern struct task_group init_task_group;
extern struct task_group *sched_create_group(void);
extern void sched_destroy_group(struct task_group *tg);
extern void sched_move_task(struct task_struct *tsk);
extern int sched_group_set_shares(struct task_group *tg, unsigned long shares);
extern unsigned long sched_group_shares(struct task_group *tg);
#endif
#ifdef CONFIG_TASK_XACCT
static inline void add_rchar(struct task_struct *tsk, ssize_t amt)
{
include/linux/topology.h
+2 -3
View File
@@ -159,15 +159,14 @@
.imbalance_pct = 125, \
.cache_nice_tries = 1, \
.busy_idx = 2, \
.idle_idx = 0, \
.newidle_idx = 0, \
.idle_idx = 1, \
.newidle_idx = 2, \
.wake_idx = 1, \
.forkexec_idx = 1, \
.flags = SD_LOAD_BALANCE \
| SD_BALANCE_NEWIDLE \
| SD_BALANCE_EXEC \
| SD_WAKE_AFFINE \
| SD_WAKE_IDLE \
| BALANCE_FOR_PKG_POWER,\
.last_balance = jiffies, \
.balance_interval = 1, \