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ferreo 2024-11-08 21:20:42 +00:00
parent ffef823a68
commit 46657044ec
4 changed files with 1090 additions and 352 deletions
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2
.github/release-nest-v3 vendored
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1
2

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VERSION
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@ -1 +1 @@
6.11.6
6.11.7

1273
patches/0001-cachyos-base-all.patch
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File diff suppressed because it is too large Load Diff

165
patches/0003-bore-cachy-ext.patch
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@ -1,6 +1,6 @@
From 318c40e6ac298c062db3e34a9e94e75b81d3a653 Mon Sep 17 00:00:00 2001
From 6ecc114fa063ac6afffe38eafb3f7fdbd3695a33 Mon Sep 17 00:00:00 2001
From: Eric Naim <dnaim@cachyos.org>
Date: Mon, 28 Oct 2024 10:11:08 +0800
Date: Thu, 7 Nov 2024 22:56:57 +0800
Subject: [PATCH] bore-cachy-ext
Signed-off-by: Eric Naim <dnaim@cachyos.org>
@ -8,16 +8,16 @@ Signed-off-by: Eric Naim <dnaim@cachyos.org>
include/linux/sched.h | 20 +-
include/linux/sched/bore.h | 37 ++++
init/Kconfig | 17 ++
kernel/Kconfig.hz | 43 +++++
kernel/Kconfig.hz | 17 ++
kernel/fork.c | 5 +
kernel/sched/Makefile | 1 +
kernel/sched/bore.c | 381 +++++++++++++++++++++++++++++++++++++
kernel/sched/core.c | 7 +
kernel/sched/debug.c | 67 ++++++-
kernel/sched/fair.c | 114 +++++++++--
kernel/sched/debug.c | 61 +++++-
kernel/sched/fair.c | 98 ++++++++--
kernel/sched/features.h | 4 +
kernel/sched/sched.h | 16 ++
12 files changed, 694 insertions(+), 18 deletions(-)
kernel/sched/sched.h | 9 +
12 files changed, 639 insertions(+), 18 deletions(-)
create mode 100644 include/linux/sched/bore.h
create mode 100644 kernel/sched/bore.c
@ -136,10 +136,10 @@ index e1a88d48d652..3aea8e43c360 100644
bool "Automatic process group scheduling"
select CGROUPS
diff --git a/kernel/Kconfig.hz b/kernel/Kconfig.hz
index 0f78364efd4f..4cf2d88916bd 100644
index 0f78364efd4f..83a6b919ab29 100644
--- a/kernel/Kconfig.hz
+++ b/kernel/Kconfig.hz
@@ -79,5 +79,48 @@ config HZ
@@ -79,5 +79,22 @@ config HZ
default 750 if HZ_750
default 1000 if HZ_1000
@ -159,32 +159,6 @@ index 0f78364efd4f..4cf2d88916bd 100644
+ Setting this value too high can cause the system to boot with
+ an unnecessarily large base slice, resulting in high scheduling
+ latency and poor system responsiveness.
+
+config MIGRATION_COST_BASE_NS
+ int "Default value for migration_cost_base_ns"
+ default 300000
+ help
+ The BORE Scheduler automatically calculates the optimal
+ migration_cost_ns using the following equation:
+
+ migration_cost_ns =
+ migration_cost_base_ns + ilog2(ncpus) * migration_cost_step_ns
+
+ This option sets the default migration_cost_base_ns
+ to be used in the automatic calculation.
+
+config MIGRATION_COST_STEP_NS
+ int "Default value for migration_cost_step_ns"
+ default 50000
+ help
+ The BORE Scheduler automatically calculates the optimal
+ migration_cost_ns using the following equation:
+
+ migration_cost_ns =
+ migration_cost_base_ns + ilog2(ncpus) * migration_cost_step_ns
+
+ This option sets the default migration_cost_step_ns
+ to be used in the automatic calculation.
+
config SCHED_HRTICK
def_bool HIGH_RES_TIMERS
@ -608,7 +582,7 @@ index 000000000000..cd7e8a8d6075
+#endif // CONFIG_SYSCTL
+#endif // CONFIG_SCHED_BORE
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 8ae04bd4a5a4..896db098c4c5 100644
index 8c045d05e4fe..9ff3a76daf21 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -97,6 +97,8 @@
@ -625,7 +599,7 @@ index 8ae04bd4a5a4..896db098c4c5 100644
#endif
+#ifdef CONFIG_SCHED_BORE
+ printk(KERN_INFO "BORE (Burst-Oriented Response Enhancer) CPU Scheduler modification 5.7.1 by Masahito Suzuki");
+ printk(KERN_INFO "BORE (Burst-Oriented Response Enhancer) CPU Scheduler modification 5.7.3 by Masahito Suzuki");
+ init_task_bore(&init_task);
+#endif // CONFIG_SCHED_BORE
+
@ -633,10 +607,10 @@ index 8ae04bd4a5a4..896db098c4c5 100644
#ifdef CONFIG_FAIR_GROUP_SCHED
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index c057ef46c5f8..b71ce5182500 100644
index c057ef46c5f8..6201135dd6bb 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -167,7 +167,55 @@ static const struct file_operations sched_feat_fops = {
@@ -167,7 +167,53 @@ static const struct file_operations sched_feat_fops = {
};
#ifdef CONFIG_SMP
@ -684,15 +658,13 @@ index c057ef46c5f8..b71ce5182500 100644
+};
+
+DEFINE_SYSCTL_SCHED_FUNC(min_base_slice, min_base_slice)
+DEFINE_SYSCTL_SCHED_FUNC(migration_cost_base, migration_cost)
+DEFINE_SYSCTL_SCHED_FUNC(migration_cost_step, migration_cost)
+#undef DEFINE_SYSCTL_SCHED_FUNC
+#else // !CONFIG_SCHED_BORE
static ssize_t sched_scaling_write(struct file *filp, const char __user *ubuf,
size_t cnt, loff_t *ppos)
{
@@ -213,7 +261,7 @@ static const struct file_operations sched_scaling_fops = {
@@ -213,7 +259,7 @@ static const struct file_operations sched_scaling_fops = {
.llseek = seq_lseek,
.release = single_release,
};
@ -701,7 +673,7 @@ index c057ef46c5f8..b71ce5182500 100644
#endif /* SMP */
#ifdef CONFIG_PREEMPT_DYNAMIC
@@ -347,14 +395,25 @@ static __init int sched_init_debug(void)
@@ -347,13 +393,20 @@ static __init int sched_init_debug(void)
debugfs_create_file("preempt", 0644, debugfs_sched, NULL, &sched_dynamic_fops);
#endif
@ -716,18 +688,13 @@ index c057ef46c5f8..b71ce5182500 100644
debugfs_create_u32("latency_warn_once", 0644, debugfs_sched, &sysctl_resched_latency_warn_once);
#ifdef CONFIG_SMP
+#ifdef CONFIG_SCHED_BORE
+ debugfs_create_file("migration_cost_base_ns", 0644, debugfs_sched, NULL, &sched_migration_cost_base_fops);
+ debugfs_create_file("migration_cost_step_ns", 0644, debugfs_sched, NULL, &sched_migration_cost_step_fops);
+ debugfs_create_u32("migration_cost_ns", 0444, debugfs_sched, &sysctl_sched_migration_cost);
+#else // !CONFIG_SCHED_BORE
+#if !defined(CONFIG_SCHED_BORE)
debugfs_create_file("tunable_scaling", 0644, debugfs_sched, NULL, &sched_scaling_fops);
debugfs_create_u32("migration_cost_ns", 0644, debugfs_sched, &sysctl_sched_migration_cost);
+#endif // CONFIG_SCHED_BORE
debugfs_create_u32("migration_cost_ns", 0644, debugfs_sched, &sysctl_sched_migration_cost);
debugfs_create_u32("nr_migrate", 0644, debugfs_sched, &sysctl_sched_nr_migrate);
mutex_lock(&sched_domains_mutex);
@@ -596,6 +655,9 @@ print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
@@ -596,6 +649,9 @@ print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
SPLIT_NS(schedstat_val_or_zero(p->stats.sum_sleep_runtime)),
SPLIT_NS(schedstat_val_or_zero(p->stats.sum_block_runtime)));
@ -737,7 +704,7 @@ index c057ef46c5f8..b71ce5182500 100644
#ifdef CONFIG_NUMA_BALANCING
SEQ_printf(m, " %d %d", task_node(p), task_numa_group_id(p));
#endif
@@ -1069,6 +1131,9 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns,
@@ -1069,6 +1125,9 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns,
P(se.load.weight);
#ifdef CONFIG_SMP
@ -748,7 +715,7 @@ index c057ef46c5f8..b71ce5182500 100644
P(se.avg.runnable_sum);
P(se.avg.util_sum);
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index a36e37a674e8..bdd7366db711 100644
index a36e37a674e8..1c8704b2c230 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -55,6 +55,8 @@
@ -760,7 +727,7 @@ index a36e37a674e8..bdd7366db711 100644
/*
* The initial- and re-scaling of tunables is configurable
*
@@ -64,28 +66,38 @@
@@ -64,28 +66,32 @@
* SCHED_TUNABLESCALING_LOG - scaled logarithmically, *1+ilog(ncpus)
* SCHED_TUNABLESCALING_LINEAR - scaled linear, *ncpus
*
@ -787,8 +754,8 @@ index a36e37a674e8..bdd7366db711 100644
-static unsigned int normalized_sysctl_sched_base_slice = 350000ULL;
-#else
+#ifdef CONFIG_SCHED_BORE
+const static uint nsecs_per_tick = 1000000000ULL / HZ;
+const_debug uint sysctl_sched_min_base_slice = CONFIG_MIN_BASE_SLICE_NS;
+static const unsigned int nsecs_per_tick = 1000000000ULL / HZ;
+unsigned int sysctl_sched_min_base_slice = CONFIG_MIN_BASE_SLICE_NS;
+__read_mostly uint sysctl_sched_base_slice = nsecs_per_tick;
+#else // !CONFIG_SCHED_BORE
unsigned int sysctl_sched_base_slice = 750000ULL;
@ -799,18 +766,12 @@ index a36e37a674e8..bdd7366db711 100644
-#ifdef CONFIG_CACHY
-const_debug unsigned int sysctl_sched_migration_cost = 300000UL;
-#else
+#ifdef CONFIG_SCHED_BORE
+const_debug uint sysctl_sched_migration_cost_base = CONFIG_MIGRATION_COST_BASE_NS;
+const_debug uint sysctl_sched_migration_cost_step = CONFIG_MIGRATION_COST_STEP_NS;
+__read_mostly uint sysctl_sched_migration_cost = CONFIG_MIGRATION_COST_BASE_NS;
+#else // !CONFIG_SCHED_BORE
const_debug unsigned int sysctl_sched_migration_cost = 500000UL;
-#endif
+#endif // CONFIG_SCHED_BORE
static int __init setup_sched_thermal_decay_shift(char *str)
{
@@ -130,12 +142,8 @@ int __weak arch_asym_cpu_priority(int cpu)
@@ -130,12 +136,8 @@ int __weak arch_asym_cpu_priority(int cpu)
*
* (default: 5 msec, units: microseconds)
*/
@ -823,48 +784,29 @@ index a36e37a674e8..bdd7366db711 100644
#ifdef CONFIG_NUMA_BALANCING
/* Restrict the NUMA promotion throughput (MB/s) for each target node. */
@@ -201,6 +209,18 @@ static inline void update_load_set(struct load_weight *lw, unsigned long w)
@@ -201,6 +203,13 @@ static inline void update_load_set(struct load_weight *lw, unsigned long w)
*
* This idea comes from the SD scheduler of Con Kolivas:
*/
+#ifdef CONFIG_SCHED_BORE
+static void auto_calculate_base_slice(void) {
+static void update_sysctl(void) {
+ sysctl_sched_base_slice = nsecs_per_tick *
+ max(1UL, DIV_ROUND_UP(sysctl_sched_min_base_slice, nsecs_per_tick));
+}
+static void auto_calculate_migration_cost(void) {
+ sysctl_sched_migration_cost = sysctl_sched_migration_cost_base +
+ ilog2(num_online_cpus()) * sysctl_sched_migration_cost_step;
+}
+void sched_update_min_base_slice(void) { auto_calculate_base_slice(); }
+void sched_update_migration_cost(void) { auto_calculate_migration_cost(); }
+void sched_update_min_base_slice(void) { update_sysctl(); }
+#else // !CONFIG_SCHED_BORE
static unsigned int get_update_sysctl_factor(void)
{
unsigned int cpus = min_t(unsigned int, num_online_cpus(), 8);
@@ -221,15 +241,21 @@ static unsigned int get_update_sysctl_factor(void)
return factor;
}
+#endif // CONFIG_SCHED_BORE
static void update_sysctl(void)
{
+#ifdef CONFIG_SCHED_BORE
+ auto_calculate_base_slice();
+ auto_calculate_migration_cost();
+#else // !CONFIG_SCHED_BORE
unsigned int factor = get_update_sysctl_factor();
#define SET_SYSCTL(name) \
(sysctl_##name = (factor) * normalized_sysctl_##name)
@@ -231,6 +240,7 @@ static void update_sysctl(void)
SET_SYSCTL(sched_base_slice);
#undef SET_SYSCTL
+#endif // CONFIG_SCHED_BORE
}
+#endif // CONFIG_SCHED_BORE
void __init sched_init_granularity(void)
@@ -708,6 +734,9 @@ static s64 entity_lag(u64 avruntime, struct sched_entity *se)
{
@@ -708,6 +718,9 @@ static s64 entity_lag(u64 avruntime, struct sched_entity *se)
vlag = avruntime - se->vruntime;
limit = calc_delta_fair(max_t(u64, 2*se->slice, TICK_NSEC), se);
@ -874,7 +816,7 @@ index a36e37a674e8..bdd7366db711 100644
return clamp(vlag, -limit, limit);
}
@@ -909,6 +938,10 @@ static struct sched_entity *pick_eevdf(struct cfs_rq *cfs_rq)
@@ -909,6 +922,10 @@ static struct sched_entity *pick_eevdf(struct cfs_rq *cfs_rq)
* until it gets a new slice. See the HACK in set_next_entity().
*/
if (sched_feat(RUN_TO_PARITY) && curr && curr->vlag == curr->deadline)
@ -885,7 +827,7 @@ index a36e37a674e8..bdd7366db711 100644
return curr;
/* Pick the leftmost entity if it's eligible */
@@ -967,6 +1000,7 @@ struct sched_entity *__pick_last_entity(struct cfs_rq *cfs_rq)
@@ -967,6 +984,7 @@ struct sched_entity *__pick_last_entity(struct cfs_rq *cfs_rq)
* Scheduling class statistics methods:
*/
#ifdef CONFIG_SMP
@ -893,7 +835,7 @@ index a36e37a674e8..bdd7366db711 100644
int sched_update_scaling(void)
{
unsigned int factor = get_update_sysctl_factor();
@@ -978,6 +1012,7 @@ int sched_update_scaling(void)
@@ -978,6 +996,7 @@ int sched_update_scaling(void)
return 0;
}
@ -901,7 +843,7 @@ index a36e37a674e8..bdd7366db711 100644
#endif
#endif
@@ -1178,6 +1213,10 @@ static void update_curr(struct cfs_rq *cfs_rq)
@@ -1178,6 +1197,10 @@ static void update_curr(struct cfs_rq *cfs_rq)
if (unlikely(delta_exec <= 0))
return;
@ -912,7 +854,7 @@ index a36e37a674e8..bdd7366db711 100644
curr->vruntime += calc_delta_fair(delta_exec, curr);
update_deadline(cfs_rq, curr);
update_min_vruntime(cfs_rq);
@@ -3804,7 +3843,7 @@ static void reweight_eevdf(struct sched_entity *se, u64 avruntime,
@@ -3804,7 +3827,7 @@ static void reweight_eevdf(struct sched_entity *se, u64 avruntime,
se->deadline = avruntime + vslice;
}
@ -921,7 +863,7 @@ index a36e37a674e8..bdd7366db711 100644
unsigned long weight)
{
bool curr = cfs_rq->curr == se;
@@ -5212,6 +5251,9 @@ place_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
@@ -5212,6 +5235,9 @@ place_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
*
* EEVDF: placement strategy #1 / #2
*/
@ -931,7 +873,7 @@ index a36e37a674e8..bdd7366db711 100644
if (sched_feat(PLACE_LAG) && cfs_rq->nr_running) {
struct sched_entity *curr = cfs_rq->curr;
unsigned long load;
@@ -5282,6 +5324,16 @@ place_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
@@ -5282,6 +5308,16 @@ place_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
se->vruntime = vruntime - lag;
@ -948,7 +890,7 @@ index a36e37a674e8..bdd7366db711 100644
/*
* When joining the competition; the existing tasks will be,
* on average, halfway through their slice, as such start tasks
@@ -5391,6 +5443,7 @@ static __always_inline void return_cfs_rq_runtime(struct cfs_rq *cfs_rq);
@@ -5391,6 +5427,7 @@ static __always_inline void return_cfs_rq_runtime(struct cfs_rq *cfs_rq);
static void
dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
{
@ -956,7 +898,7 @@ index a36e37a674e8..bdd7366db711 100644
int action = UPDATE_TG;
if (entity_is_task(se) && task_on_rq_migrating(task_of(se)))
@@ -5418,6 +5471,11 @@ dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
@@ -5418,6 +5455,11 @@ dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
clear_buddies(cfs_rq, se);
update_entity_lag(cfs_rq, se);
@ -968,7 +910,7 @@ index a36e37a674e8..bdd7366db711 100644
if (se != cfs_rq->curr)
__dequeue_entity(cfs_rq, se);
se->on_rq = 0;
@@ -6869,6 +6927,14 @@ static void dequeue_task_fair(struct rq *rq, struct task_struct *p, int flags)
@@ -6869,6 +6911,14 @@ static void dequeue_task_fair(struct rq *rq, struct task_struct *p, int flags)
bool was_sched_idle = sched_idle_rq(rq);
util_est_dequeue(&rq->cfs, p);
@ -983,7 +925,7 @@ index a36e37a674e8..bdd7366db711 100644
for_each_sched_entity(se) {
cfs_rq = cfs_rq_of(se);
@@ -8651,16 +8717,25 @@ static void yield_task_fair(struct rq *rq)
@@ -8651,16 +8701,25 @@ static void yield_task_fair(struct rq *rq)
/*
* Are we the only task in the tree?
*/
@ -1009,7 +951,7 @@ index a36e37a674e8..bdd7366db711 100644
/*
* Tell update_rq_clock() that we've just updated,
* so we don't do microscopic update in schedule()
@@ -12725,6 +12800,9 @@ static void task_fork_fair(struct task_struct *p)
@@ -12725,6 +12784,9 @@ static void task_fork_fair(struct task_struct *p)
curr = cfs_rq->curr;
if (curr)
update_curr(cfs_rq);
@ -1019,7 +961,7 @@ index a36e37a674e8..bdd7366db711 100644
place_entity(cfs_rq, se, ENQUEUE_INITIAL);
rq_unlock(rq, &rf);
}
@@ -12837,6 +12915,10 @@ static void attach_task_cfs_rq(struct task_struct *p)
@@ -12837,6 +12899,10 @@ static void attach_task_cfs_rq(struct task_struct *p)
static void switched_from_fair(struct rq *rq, struct task_struct *p)
{
@ -1046,37 +988,28 @@ index 143f55df890b..e97b7b68bdd3 100644
/*
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 48d893de632b..8c3fa2ffa177 100644
index 48d893de632b..1030725bacd7 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -2065,7 +2065,12 @@ static inline void update_sched_domain_debugfs(void) { }
@@ -2065,7 +2065,11 @@ static inline void update_sched_domain_debugfs(void) { }
static inline void dirty_sched_domain_sysctl(int cpu) { }
#endif
+#ifdef CONFIG_SCHED_BORE
+extern void sched_update_min_base_slice(void);
+extern void sched_update_migration_cost(void);
+#else // !CONFIG_SCHED_BORE
extern int sched_update_scaling(void);
+#endif // CONFIG_SCHED_BORE
static inline const struct cpumask *task_user_cpus(struct task_struct *p)
{
@@ -2735,9 +2740,20 @@ extern void wakeup_preempt(struct rq *rq, struct task_struct *p, int flags);
#endif
@@ -2737,7 +2741,12 @@ extern void wakeup_preempt(struct rq *rq, struct task_struct *p, int flags);
extern const_debug unsigned int sysctl_sched_nr_migrate;
+#ifdef CONFIG_SCHED_BORE
+extern const_debug unsigned int sysctl_sched_migration_cost_base;
+extern const_debug unsigned int sysctl_sched_migration_cost_step;
+extern __read_mostly unsigned int sysctl_sched_migration_cost;
+#else // !CONFIG_SCHED_BORE
extern const_debug unsigned int sysctl_sched_migration_cost;
+#endif // CONFIG_SCHED_BORE
+#ifdef CONFIG_SCHED_BORE
+extern const_debug unsigned int sysctl_sched_min_base_slice;
+extern __read_mostly unsigned int sysctl_sched_base_slice;
+extern unsigned int sysctl_sched_min_base_slice;
+extern __read_mostly uint sysctl_sched_base_slice;
+#else // !CONFIG_SCHED_BORE
extern unsigned int sysctl_sched_base_slice;
+#endif // CONFIG_SCHED_BORE