713997b7f6
Currently, the misfit task accounting isn't multicluster aware. It only picks out misfits on the smallest cluster. Fix this so that we have per cpu and per cluster accounting. While at it, update the code to consume this data and unisolate a cpu if there is a misfit task in prev cluster. Change-Id: I9a2c30bf2c9da3ace1ffd7ea22d6c6e22bbddacc Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org> Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_SCHED_STAT_H
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#define _LINUX_SCHED_STAT_H
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#include <linux/percpu.h>
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/*
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* Various counters maintained by the scheduler and fork(),
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* exposed via /proc, sys.c or used by drivers via these APIs.
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*
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* ( Note that all these values are aquired without locking,
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* so they can only be relied on in narrow circumstances. )
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*/
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extern unsigned long total_forks;
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extern int nr_threads;
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DECLARE_PER_CPU(unsigned long, process_counts);
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extern int nr_processes(void);
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extern unsigned long nr_running(void);
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extern bool single_task_running(void);
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extern unsigned long nr_iowait(void);
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extern unsigned long nr_iowait_cpu(int cpu);
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extern void get_iowait_load(unsigned long *nr_waiters, unsigned long *load);
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#ifdef CONFIG_SMP
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extern void sched_update_nr_prod(int cpu, long delta, bool inc);
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extern unsigned int sched_get_cpu_util(int cpu);
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extern u64 sched_get_cpu_last_busy_time(int cpu);
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#else
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static inline void sched_update_nr_prod(int cpu, long delta, bool inc)
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{
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}
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static inline unsigned int sched_get_cpu_util(int cpu)
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{
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return 0;
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}
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static inline u64 sched_get_cpu_last_busy_time(int cpu)
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{
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return 0;
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}
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#endif
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static inline int sched_info_on(void)
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{
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#ifdef CONFIG_SCHEDSTATS
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return 1;
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#elif defined(CONFIG_TASK_DELAY_ACCT)
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extern int delayacct_on;
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return delayacct_on;
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#else
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return 0;
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#endif
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}
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#ifdef CONFIG_SCHEDSTATS
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void force_schedstat_enabled(void);
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#endif
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#endif /* _LINUX_SCHED_STAT_H */
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