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sched: Add util busy hist sysctl tunables

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Add util_busy_hist sysctl tunables which solely
look at the sum of cpu_util across CPUs as a metric for
LPM biasing on any/all CPUs.

Change-Id: Ib981c21a58059ef02772ee797808c5f30547a688
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
This commit is contained in:
Rishabh Bhatnagar 2021-05-11 10:43:20 -07:00 committed by Rishabh Bhatnagar
parent 9d8bdac63a
commit 13b036b5ef
2 changed files with 37 additions and 0 deletions
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34
kernel/sched/walt/sysctl.c
View File

@ -34,6 +34,9 @@ unsigned int sysctl_sched_coloc_busy_hyst_enable_cpus;
unsigned int sysctl_sched_coloc_busy_hyst_cpu[WALT_NR_CPUS];
unsigned int sysctl_sched_coloc_busy_hyst_max_ms;
unsigned int sysctl_sched_coloc_busy_hyst_cpu_busy_pct[WALT_NR_CPUS];
unsigned int sysctl_sched_util_busy_hyst_enable_cpus;
unsigned int sysctl_sched_util_busy_hyst_cpu[WALT_NR_CPUS];
unsigned int sysctl_sched_util_busy_hyst_cpu_util[WALT_NR_CPUS];
unsigned int sysctl_sched_boost;
unsigned int sysctl_sched_wake_up_idle[2];
unsigned int sysctl_input_boost_ms;
@ -614,6 +617,33 @@ struct ctl_table walt_table[] = {
.extra1 = SYSCTL_ZERO,
.extra2 = &one_hundred,
},
{
.procname = "sched_util_busy_hysteresis_enable_cpus",
.data = &sysctl_sched_util_busy_hyst_enable_cpus,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = sched_busy_hyst_handler,
.extra1 = SYSCTL_ZERO,
.extra2 = &two_hundred_fifty_five,
},
{
.procname = "sched_util_busy_hyst_cpu_ns",
.data = &sysctl_sched_util_busy_hyst_cpu,
.maxlen = sizeof(unsigned int) * WALT_NR_CPUS,
.mode = 0644,
.proc_handler = sched_busy_hyst_handler,
.extra1 = SYSCTL_ZERO,
.extra2 = &ns_per_sec,
},
{
.procname = "sched_util_busy_hyst_cpu_util",
.data = &sysctl_sched_util_busy_hyst_cpu_util,
.maxlen = sizeof(unsigned int) * WALT_NR_CPUS,
.mode = 0644,
.proc_handler = sched_busy_hyst_handler,
.extra1 = SYSCTL_ZERO,
.extra2 = &one_thousand,
},
{
.procname = "sched_ravg_window_nr_ticks",
.data = &sysctl_sched_ravg_window_nr_ticks,
@ -781,10 +811,14 @@ void walt_tunables(void)
for (i = 0; i < WALT_NR_CPUS; i++) {
sysctl_sched_coloc_busy_hyst_cpu[i] = 39000000;
sysctl_sched_coloc_busy_hyst_cpu_busy_pct[i] = 10;
sysctl_sched_util_busy_hyst_cpu[i] = 5000000;
sysctl_sched_util_busy_hyst_cpu_util[i] = 15;
}
sysctl_sched_coloc_busy_hyst_enable_cpus = 112;
sysctl_sched_util_busy_hyst_enable_cpus = 255;
sysctl_sched_coloc_busy_hyst_max_ms = 5000;
sched_ravg_window = DEFAULT_SCHED_RAVG_WINDOW;

3
kernel/sched/walt/walt.h
View File

@ -210,6 +210,9 @@ extern unsigned int sysctl_sched_coloc_busy_hyst_enable_cpus;
extern unsigned int sysctl_sched_coloc_busy_hyst_cpu[WALT_NR_CPUS];
extern unsigned int sysctl_sched_coloc_busy_hyst_max_ms;
extern unsigned int sysctl_sched_coloc_busy_hyst_cpu_busy_pct[WALT_NR_CPUS];
extern unsigned int sysctl_sched_util_busy_hyst_enable_cpus;
extern unsigned int sysctl_sched_util_busy_hyst_cpu[WALT_NR_CPUS];
extern unsigned int sysctl_sched_util_busy_hyst_cpu_util[WALT_NR_CPUS];
extern unsigned int sysctl_sched_boost; /* To/from userspace */
extern unsigned int sysctl_sched_capacity_margin_up[MAX_MARGIN_LEVELS];
extern unsigned int sysctl_sched_capacity_margin_down[MAX_MARGIN_LEVELS];