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Commit 44a9fe8a authored by Sai Harshini Nimmala's avatar Sai Harshini Nimmala Committed by Satya Durga Srinivasu Prabhala
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sched/walt: Improve the scheduler 



This change is for general scheduler improvement.

Change-Id: I33e9ec890f8b54d673770d5d02dba489a8e08ce7
Signed-off-by: default avatarSai Harshini Nimmala <snimmala@codeaurora.org>
[satyap@codeaurora.org: port to 5.4 and resolve trivial merge conflicts]
Signed-off-by: default avatarSatya Durga Srinivasu Prabhala <satyap@codeaurora.org>
parent e673c734

include/linux/sched.h

+1 −1
Original line number Diff line number Diff line
@@ -832,7 +832,7 @@ struct task_struct { 
	struct list_head grp_list;

	u64 cpu_cycles;

	bool misfit;

	u8 unfilter;

	u32 unfilter;

#endif



#ifdef CONFIG_CGROUP_SCHED

include/linux/sched/sysctl.h

+1 −1
Original line number Diff line number Diff line
@@ -43,7 +43,7 @@ extern unsigned int __weak sysctl_sched_min_task_util_for_boost; 
extern unsigned int __weak sysctl_sched_min_task_util_for_colocation;

extern unsigned int __weak sysctl_sched_asym_cap_sibling_freq_match_pct;

extern unsigned int __weak sysctl_sched_coloc_downmigrate_ns;

extern unsigned int __weak sysctl_sched_task_unfilter_nr_windows;

extern unsigned int __weak sysctl_sched_task_unfilter_period;

extern unsigned int __weak sysctl_sched_busy_hyst_enable_cpus;

extern unsigned int __weak sysctl_sched_busy_hyst;

extern unsigned int __weak sysctl_sched_coloc_busy_hyst_enable_cpus;

include/trace/events/sched.h

+2 −2
Original line number Diff line number Diff line
@@ -1019,7 +1019,7 @@ TRACE_EVENT(sched_task_util, 
		__field(bool,           is_rtg)

		__field(bool,           rtg_skip_min)

		__field(int,            start_cpu)

		__field(int,            unfilter)

		__field(u32,            unfilter)

		__field(unsigned long,	cpus_allowed)

		__field(int,            task_boost)

	),
@@ -1054,7 +1054,7 @@ TRACE_EVENT(sched_task_util, 
#endif

	),



	TP_printk("pid=%d comm=%s util=%lu prev_cpu=%d candidates=%#lx best_energy_cpu=%d sync=%d need_idle=%d fastpath=%d placement_boost=%d latency=%llu stune_boosted=%d is_rtg=%d rtg_skip_min=%d start_cpu=%d unfilter=%d affinity=%lx task_boost=%d",

	TP_printk("pid=%d comm=%s util=%lu prev_cpu=%d candidates=%#lx best_energy_cpu=%d sync=%d need_idle=%d fastpath=%d placement_boost=%d latency=%llu stune_boosted=%d is_rtg=%d rtg_skip_min=%d start_cpu=%d unfilter=%u affinity=%lx task_boost=%d",

		__entry->pid, __entry->comm, __entry->util, __entry->prev_cpu,

		__entry->candidates, __entry->best_energy_cpu, __entry->sync,

		__entry->need_idle, __entry->fastpath, __entry->placement_boost,

kernel/sysctl.c

+4 −3
Original line number Diff line number Diff line
@@ -148,6 +148,7 @@ static int two_hundred_fifty_five = 255; 
const int sched_user_hint_max = 1000;

static unsigned int ns_per_sec = NSEC_PER_SEC;

static unsigned int one_hundred_thousand = 100000;

static unsigned int two_hundred_million = 200000000;

#endif



/* this is needed for the proc_doulongvec_minmax of vm_dirty_bytes */
@@ -471,13 +472,13 @@ static struct ctl_table kern_table[] = { 
		.proc_handler	= proc_douintvec_minmax,

	},

	{

		.procname	= "sched_task_unfilter_nr_windows",

		.data		= &sysctl_sched_task_unfilter_nr_windows,

		.procname	= "sched_task_unfilter_period",

		.data		= &sysctl_sched_task_unfilter_period,

		.maxlen		= sizeof(unsigned int),

		.mode		= 0644,

		.proc_handler	= proc_dointvec_minmax,

		.extra1		= SYSCTL_ONE,

		.extra2		= &two_hundred_fifty_five,

		.extra2		= &two_hundred_million,

	},

	{

		.procname	= "sched_busy_hysteresis_enable_cpus",