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sched/walt: Improve the scheduler

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This change is for general scheduler improvement.

Change-Id: I33e9ec890f8b54d673770d5d02dba489a8e08ce7
Signed-off-by: Sai Harshini Nimmala <snimmala@codeaurora.org>
[satyap@codeaurora.org: port to 5.4 and resolve trivial merge conflicts]
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
This commit is contained in:
Sai Harshini Nimmala 2019-11-20 17:21:15 -08:00 • committed by Satya Durga Srinivasu Prabhala
commit 44a9fe8ad9
4 changed files with 8 additions and 7 deletions
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2
include/linux/sched.h
View file

@ -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

2
include/linux/sched/sysctl.h
View file

@ -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;

4
include/trace/events/sched.h
View file

@ -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,

7
kernel/sysctl.c
View file

@ -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",