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Commit 7bc951b1 authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "sched: Use bitmask for sched_busy_hysteresis_enable_cpus tunable"

parents 536cba46 2d447d6d

include/linux/sched/sysctl.h

+1 −1
Original line number Original line Diff line number Diff line
@@ -131,6 +131,6 @@ extern int sched_little_cluster_coloc_fmin_khz_handler(struct ctl_table *table, 
extern char sched_lib_name[LIB_PATH_LENGTH];

extern char sched_lib_name[LIB_PATH_LENGTH];

extern unsigned int sched_lib_mask_force;

extern unsigned int sched_lib_mask_force;

extern bool is_sched_lib_based_app(pid_t pid);

extern bool is_sched_lib_based_app(pid_t pid);

extern unsigned long *sched_busy_hysteresis_cpubits;

extern unsigned int sysctl_sched_busy_hysteresis_enable_cpus;





#endif /* _LINUX_SCHED_SYSCTL_H */
 
#endif /* _LINUX_SCHED_SYSCTL_H */

kernel/sched/sched_avg.c

+2 −4
Original line number Original line Diff line number Diff line
@@ -26,9 +26,7 @@ static DEFINE_PER_CPU(unsigned long, iowait_prod_sum); 
static DEFINE_PER_CPU(spinlock_t, nr_lock) = __SPIN_LOCK_UNLOCKED(nr_lock);

static DEFINE_PER_CPU(spinlock_t, nr_lock) = __SPIN_LOCK_UNLOCKED(nr_lock);

static s64 last_get_time;

static s64 last_get_time;





static struct cpumask sched_busy_hysteresis_cpumask;

unsigned int sysctl_sched_busy_hysteresis_enable_cpus;

unsigned long *sched_busy_hysteresis_cpubits =

				cpumask_bits(&sched_busy_hysteresis_cpumask);

static DEFINE_PER_CPU(atomic64_t, last_busy_time) = ATOMIC64_INIT(0);

static DEFINE_PER_CPU(atomic64_t, last_busy_time) = ATOMIC64_INIT(0);





#define NR_THRESHOLD_PCT		15

#define NR_THRESHOLD_PCT		15
@@ -107,7 +105,7 @@ static inline void update_last_busy_time(int cpu, bool dequeue, 
{

{

	bool nr_run_trigger = false, load_trigger = false;

	bool nr_run_trigger = false, load_trigger = false;





	if (!cpumask_test_cpu(cpu, &sched_busy_hysteresis_cpumask))

	if (!(BIT(cpu) & sysctl_sched_busy_hysteresis_enable_cpus))

		return;

		return;





	if (prev_nr_run >= BUSY_NR_RUN && per_cpu(nr, cpu) < BUSY_NR_RUN)

	if (prev_nr_run >= BUSY_NR_RUN && per_cpu(nr, cpu) < BUSY_NR_RUN)

kernel/sysctl.c

+5 −3
Original line number Original line Diff line number Diff line
@@ -443,10 +443,12 @@ static struct ctl_table kern_table[] = { 
	},

	},

	{

	{

		.procname	= "sched_busy_hysteresis_enable_cpus",

		.procname	= "sched_busy_hysteresis_enable_cpus",

		.data		= &sched_busy_hysteresis_cpubits,

		.data		= &sysctl_sched_busy_hysteresis_enable_cpus,

		.maxlen		= NR_CPUS,

		.maxlen		= sizeof(unsigned int),

		.mode		= 0644,

		.mode		= 0644,

		.proc_handler	= proc_do_large_bitmap,

		.proc_handler	= proc_douintvec_minmax,

		.extra1		= &zero,

		.extra2		= &two_hundred_fifty_five,

	},

	},

#endif

#endif

#ifdef CONFIG_SCHED_DEBUG

#ifdef CONFIG_SCHED_DEBUG