linux58-tkg: Bring undead PDS back for 5.8.y (renamed upds)
It seems Project C PDS doesn't perform anywhere as good currentlymaster
Tk-Glitch
parent
07ebc66bfd
commit
15169ce848
@ -0,0 +1,18 @@
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diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
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index 6b423eebfd5d..61e3271675d6 100644
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--- a/drivers/cpufreq/cpufreq_ondemand.c
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+++ b/drivers/cpufreq/cpufreq_ondemand.c
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@@ -21,10 +21,10 @@
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#include "cpufreq_ondemand.h"
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/* On-demand governor macros */
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-#define DEF_FREQUENCY_UP_THRESHOLD (63)
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-#define DEF_SAMPLING_DOWN_FACTOR (1)
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+#define DEF_FREQUENCY_UP_THRESHOLD (55)
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+#define DEF_SAMPLING_DOWN_FACTOR (5)
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#define MAX_SAMPLING_DOWN_FACTOR (100000)
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-#define MICRO_FREQUENCY_UP_THRESHOLD (95)
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+#define MICRO_FREQUENCY_UP_THRESHOLD (63)
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#define MICRO_FREQUENCY_MIN_SAMPLE_RATE (10000)
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#define MIN_FREQUENCY_UP_THRESHOLD (1)
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#define MAX_FREQUENCY_UP_THRESHOLD (100)
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@ -0,0 +1,166 @@
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From f7f49141a5dbe9c99d78196b58c44307fb2e6be3 Mon Sep 17 00:00:00 2001
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From: Tk-Glitch <ti3nou@gmail.com>
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Date: Wed, 4 Jul 2018 04:30:08 +0200
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Subject: glitched - PDS
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diff --git a/kernel/Kconfig.hz b/kernel/Kconfig.hz
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index 2a202a846757..1d9c7ed79b11 100644
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--- a/kernel/Kconfig.hz
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+++ b/kernel/Kconfig.hz
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@@ -4,7 +4,7 @@
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choice
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prompt "Timer frequency"
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- default HZ_250
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+ default HZ_500
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help
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Allows the configuration of the timer frequency. It is customary
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to have the timer interrupt run at 1000 Hz but 100 Hz may be more
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@@ -39,6 +39,13 @@ choice
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on SMP and NUMA systems and exactly dividing by both PAL and
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NTSC frame rates for video and multimedia work.
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+ config HZ_500
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+ bool "500 HZ"
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+ help
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+ 500 Hz is a balanced timer frequency. Provides fast interactivity
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+ on desktops with great smoothness without increasing CPU power
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+ consumption and sacrificing the battery life on laptops.
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+
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config HZ_1000
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bool "1000 HZ"
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help
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@@ -52,6 +59,7 @@ config HZ
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default 100 if HZ_100
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default 250 if HZ_250
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default 300 if HZ_300
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+ default 500 if HZ_500
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default 1000 if HZ_1000
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config SCHED_HRTICK
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diff --git a/kernel/Kconfig.hz b/kernel/Kconfig.hz
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index 2a202a846757..1d9c7ed79b11 100644
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--- a/kernel/Kconfig.hz
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+++ b/kernel/Kconfig.hz
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@@ -4,7 +4,7 @@
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choice
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prompt "Timer frequency"
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- default HZ_500
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+ default HZ_750
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help
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Allows the configuration of the timer frequency. It is customary
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to have the timer interrupt run at 1000 Hz but 100 Hz may be more
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@@ -46,6 +46,13 @@ choice
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on desktops with great smoothness without increasing CPU power
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consumption and sacrificing the battery life on laptops.
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+ config HZ_750
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+ bool "750 HZ"
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+ help
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+ 750 Hz is a good timer frequency for desktops. Provides fast
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+ interactivity with great smoothness without sacrificing too
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+ much throughput.
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+
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config HZ_1000
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bool "1000 HZ"
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help
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@@ -60,6 +67,7 @@ config HZ
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default 250 if HZ_250
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default 300 if HZ_300
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default 500 if HZ_500
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+ default 750 if HZ_750
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default 1000 if HZ_1000
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config SCHED_HRTICK
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diff --git a/mm/vmscan.c b/mm/vmscan.c
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index 9270a4370d54..30d01e647417 100644
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--- a/mm/vmscan.c
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+++ b/mm/vmscan.c
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@@ -159,7 +159,7 @@ struct scan_control {
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/*
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* From 0 .. 100. Higher means more swappy.
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*/
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-int vm_swappiness = 60;
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+int vm_swappiness = 20;
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/*
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* The total number of pages which are beyond the high watermark within all
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* zones.
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diff --git a/init/Kconfig b/init/Kconfig
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index 11fd9b502d06..e9bc34d3019b 100644
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--- a/init/Kconfig
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+++ b/init/Kconfig
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@@ -715,6 +715,7 @@ menu "Scheduler features"
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config UCLAMP_TASK
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bool "Enable utilization clamping for RT/FAIR tasks"
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depends on CPU_FREQ_GOV_SCHEDUTIL
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+ depends on !SCHED_PDS
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help
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This feature enables the scheduler to track the clamped utilization
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of each CPU based on RUNNABLE tasks scheduled on that CPU.
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@@ -948,7 +948,6 @@ config CGROUP_DEVICE
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config CGROUP_CPUACCT
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bool "Simple CPU accounting controller"
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- depends on !SCHED_PDS
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help
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Provides a simple controller for monitoring the
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total CPU consumed by the tasks in a cgroup.
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diff --git a/kernel/sched/Makefile b/kernel/sched/Makefile
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index b23231bae996..cab4e5c5b38e 100644
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--- a/kernel/sched/Makefile
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+++ b/kernel/sched/Makefile
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@@ -24,13 +24,13 @@ obj-y += fair.o rt.o deadline.o
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obj-$(CONFIG_SMP) += cpudeadline.o topology.o stop_task.o
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obj-$(CONFIG_SCHED_AUTOGROUP) += autogroup.o
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obj-$(CONFIG_SCHED_DEBUG) += debug.o
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-obj-$(CONFIG_CGROUP_CPUACCT) += cpuacct.o
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endif
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obj-y += loadavg.o clock.o cputime.o
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obj-y += idle.o
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obj-y += wait.o wait_bit.o swait.o completion.o
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obj-$(CONFIG_SMP) += cpupri.o pelt.o
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obj-$(CONFIG_SCHEDSTATS) += stats.o
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+obj-$(CONFIG_CGROUP_CPUACCT) += cpuacct.o
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obj-$(CONFIG_CPU_FREQ) += cpufreq.o
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obj-$(CONFIG_CPU_FREQ_GOV_SCHEDUTIL) += cpufreq_schedutil.o
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obj-$(CONFIG_MEMBARRIER) += membarrier.o
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diff --git a/kernel/sched/pds.c b/kernel/sched/pds.c
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index 9281ad164..f09a609cf 100644
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--- a/kernel/sched/pds.c
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+++ b/kernel/sched/pds.c
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@@ -81,6 +81,18 @@ enum {
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NR_CPU_AFFINITY_CHK_LEVEL
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};
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+/*
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+ * This allows printing both to /proc/sched_debug and
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+ * to the console
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+ */
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+#define SEQ_printf(m, x...) \
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+ do { \
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+ if (m) \
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+ seq_printf(m, x); \
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+ else \
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+ pr_cont(x); \
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+ } while (0)
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+
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static inline void print_scheduler_version(void)
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{
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printk(KERN_INFO "pds: PDS-mq CPU Scheduler 0.99o by Alfred Chen.\n");
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@@ -6353,7 +6365,10 @@ void ia64_set_curr_task(int cpu, struct task_struct *p)
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#ifdef CONFIG_SCHED_DEBUG
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void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns,
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struct seq_file *m)
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-{}
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+{
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+ SEQ_printf(m, "%s (%d, #threads: %d)\n", p->comm, task_pid_nr_ns(p, ns),
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+ get_nr_threads(p));
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+}
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void proc_sched_set_task(struct task_struct *p)
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{}
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