Docs, prepare: EEVDFfy (#844)
* Docs, prepare: EEVDFfy * 6.6: add glitched eevdf additions * apply comments * more comments * comments
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kylon
GitHub
@@ -1,142 +0,0 @@
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diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
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index 6b3b59cc51d6..2a0072192c3d 100644
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--- a/kernel/sched/fair.c
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+++ b/kernel/sched/fair.c
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@@ -81,10 +95,17 @@ unsigned int sysctl_sched_child_runs_first __read_mostly;
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*
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* (default: 1 msec * (1 + ilog(ncpus)), units: nanoseconds)
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*/
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+#ifdef CONFIG_ZENIFY
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+unsigned int sysctl_sched_wakeup_granularity = 500000UL;
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+static unsigned int normalized_sysctl_sched_wakeup_granularity = 500000UL;
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+
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+const_debug unsigned int sysctl_sched_migration_cost = 50000UL;
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+#else
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unsigned int sysctl_sched_wakeup_granularity = 1000000UL;
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static unsigned int normalized_sysctl_sched_wakeup_granularity = 1000000UL;
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const_debug unsigned int sysctl_sched_migration_cost = 500000UL;
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+#endif
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int sched_thermal_decay_shift;
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static int __init setup_sched_thermal_decay_shift(char *str)
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diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
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index 051aaf65c..705df5511 100644
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--- a/kernel/sched/topology.c
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+++ b/kernel/sched/topology.c
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@@ -208,7 +208,7 @@ sd_parent_degenerate(struct sched_domain *sd, struct sched_domain *parent)
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#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
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DEFINE_STATIC_KEY_FALSE(sched_energy_present);
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-static unsigned int sysctl_sched_energy_aware = 1;
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+static unsigned int sysctl_sched_energy_aware = 0;
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static DEFINE_MUTEX(sched_energy_mutex);
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static bool sched_energy_update;
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From f85ed068b4d0e6c31edce8574a95757a60e58b87 Mon Sep 17 00:00:00 2001
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From: Etienne Juvigny <Ti3noU@gmail.com>
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Date: Mon, 3 Sep 2018 17:36:25 +0200
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Subject: [PATCH] Zenify & stuff
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---
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kernel/sched/fair.c | 25 +++++++++++++++++++++++++
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mm/page-writeback.c | 8 ++++++++
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2 files changed, 33 insertions(+)
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diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
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index 6b3b59cc51d6..2a0072192c3d 100644
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--- a/kernel/sched/fair.c
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+++ b/kernel/sched/fair.c
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@@ -37,8 +37,13 @@
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*
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* (default: 6ms * (1 + ilog(ncpus)), units: nanoseconds)
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*/
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+#ifdef CONFIG_ZENIFY
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+unsigned int sysctl_sched_latency = 3000000ULL;
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+static unsigned int normalized_sysctl_sched_latency = 3000000ULL;
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+#else
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unsigned int sysctl_sched_latency = 6000000ULL;
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static unsigned int normalized_sysctl_sched_latency = 6000000ULL;
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+#endif
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/*
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* The initial- and re-scaling of tunables is configurable
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@@ -58,21 +63,34 @@ enum sched_tunable_scaling sysctl_sched_tunable_scaling = SCHED_TUNABLESCALING_L
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*
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* (default: 0.75 msec * (1 + ilog(ncpus)), units: nanoseconds)
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*/
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+#ifdef CONFIG_ZENIFY
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+unsigned int sysctl_sched_min_granularity = 300000ULL;
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+static unsigned int normalized_sysctl_sched_min_granularity = 300000ULL;
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+#else
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unsigned int sysctl_sched_min_granularity = 750000ULL;
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static unsigned int normalized_sysctl_sched_min_granularity = 750000ULL;
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+#endif
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/*
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* Minimal preemption granularity for CPU-bound SCHED_IDLE tasks.
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* Applies only when SCHED_IDLE tasks compete with normal tasks.
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*
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* (default: 0.75 msec)
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*/
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+#ifdef CONFIG_ZENIFY
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+unsigned int sysctl_sched_idle_min_granularity = 300000ULL;
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+#else
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unsigned int sysctl_sched_idle_min_granularity = 750000ULL;
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+#endif
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/*
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* This value is kept at sysctl_sched_latency/sysctl_sched_min_granularity
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*/
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+#ifdef CONFIG_ZENIFY
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+static unsigned int sched_nr_latency = 10;
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+#else
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static unsigned int sched_nr_latency = 8;
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+#endif
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/*
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* After fork, child runs first. If set to 0 (default) then
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@@ -128,8 +149,12 @@ int __weak arch_asym_cpu_priority(int cpu)
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*
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* (default: 5 msec, units: microseconds)
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*/
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+#ifdef CONFIG_ZENIFY
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+static unsigned int sysctl_sched_cfs_bandwidth_slice = 3000UL;
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+#else
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static unsigned int sysctl_sched_cfs_bandwidth_slice = 5000UL;
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#endif
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+#endif
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#ifdef CONFIG_SYSCTL
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static struct ctl_table sched_fair_sysctls[] = {
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diff --git a/mm/page-writeback.c b/mm/page-writeback.c
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index 28b3e7a67565..01a1aef2b9b1 100644
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--- a/mm/page-writeback.c
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+++ b/mm/page-writeback.c
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@@ -71,7 +71,11 @@ static long ratelimit_pages = 32;
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/*
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* Start background writeback (via writeback threads) at this percentage
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*/
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+#ifdef CONFIG_ZENIFY
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+static int dirty_background_ratio = 20;
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+#else
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static int dirty_background_ratio = 10;
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+#endif
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/*
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* dirty_background_bytes starts at 0 (disabled) so that it is a function of
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@@ -88,7 +92,11 @@ int vm_highmem_is_dirtyable;
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/*
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* The generator of dirty data starts writeback at this percentage
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*/
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+#ifdef CONFIG_ZENIFY
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+static int vm_dirty_ratio = 50;
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+#else
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static int vm_dirty_ratio = 20;
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+#endif
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/*
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* vm_dirty_bytes starts at 0 (disabled) so that it is a function of
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--
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2.28.0
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93
linux-tkg-patches/6.6/0003-glitched-eevdf-additions.patch
Normal file
93
linux-tkg-patches/6.6/0003-glitched-eevdf-additions.patch
Normal file
@@ -0,0 +1,93 @@
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diff -Naur vlinux-6.6.1/kernel/sched/fair.c linux-6.6.1/kernel/sched/fair.c
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--- vlinux-6.6.1/kernel/sched/fair.c 2023-11-08 11:56:25.000000000 +0100
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+++ linux-6.6.1/kernel/sched/fair.c 2023-11-11 15:51:09.630279108 +0100
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@@ -75,16 +75,24 @@
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*
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* (default: 0.75 msec * (1 + ilog(ncpus)), units: nanoseconds)
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*/
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+#ifdef CONFIG_ZENIFY
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+unsigned int sysctl_sched_base_slice = 400000ULL;
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+static unsigned int normalized_sysctl_sched_base_slice = 400000ULL;
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+#else
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unsigned int sysctl_sched_base_slice = 750000ULL;
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static unsigned int normalized_sysctl_sched_base_slice = 750000ULL;
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-
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+#endif
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/*
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* After fork, child runs first. If set to 0 (default) then
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* parent will (try to) run first.
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*/
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unsigned int sysctl_sched_child_runs_first __read_mostly;
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+#ifdef CONFIG_ZENIFY
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+const_debug unsigned int sysctl_sched_migration_cost = 250000UL;
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+#else
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const_debug unsigned int sysctl_sched_migration_cost = 500000UL;
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+#endif
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int sched_thermal_decay_shift;
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static int __init setup_sched_thermal_decay_shift(char *str)
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@@ -135,8 +143,12 @@
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*
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* (default: 5 msec, units: microseconds)
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*/
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+#ifdef CONFIG_ZENIFY
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+static unsigned int sysctl_sched_cfs_bandwidth_slice = 3000UL;
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+#else
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static unsigned int sysctl_sched_cfs_bandwidth_slice = 5000UL;
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#endif
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+#endif
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#ifdef CONFIG_NUMA_BALANCING
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/* Restrict the NUMA promotion throughput (MB/s) for each target node. */
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diff -Naur vlinux-6.6.1/kernel/sched/sched.h linux-6.6.1/kernel/sched/sched.h
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--- vlinux-6.6.1/kernel/sched/sched.h 2023-11-08 11:56:25.000000000 +0100
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+++ linux-6.6.1/kernel/sched/sched.h 2023-11-11 15:52:03.241725632 +0100
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@@ -2515,7 +2515,7 @@
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extern void check_preempt_curr(struct rq *rq, struct task_struct *p, int flags);
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-#ifdef CONFIG_PREEMPT_RT
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+#if defined(CONFIG_PREEMPT_RT) || defined(CONFIG_ZENIFY)
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#define SCHED_NR_MIGRATE_BREAK 8
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#else
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#define SCHED_NR_MIGRATE_BREAK 32
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diff -Naur vlinux-6.6.1/kernel/sched/topology.c linux-6.6.1/kernel/sched/topology.c
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--- vlinux-6.6.1/kernel/sched/topology.c 2023-11-08 11:56:25.000000000 +0100
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+++ linux-6.6.1/kernel/sched/topology.c 2023-11-11 15:56:54.602473894 +0100
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@@ -208,7 +208,7 @@
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#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
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DEFINE_STATIC_KEY_FALSE(sched_energy_present);
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-static unsigned int sysctl_sched_energy_aware = 1;
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+static unsigned int sysctl_sched_energy_aware = 0;
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static DEFINE_MUTEX(sched_energy_mutex);
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static bool sched_energy_update;
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diff -Naur vlinux-6.6.1/mm/page-writeback.c linux-6.6.1/mm/page-writeback.c
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--- vlinux-6.6.1/mm/page-writeback.c 2023-11-08 11:56:25.000000000 +0100
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+++ linux-6.6.1/mm/page-writeback.c 2023-11-11 16:07:22.214222902 +0100
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@@ -71,7 +71,11 @@
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/*
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* Start background writeback (via writeback threads) at this percentage
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*/
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+#ifdef CONFIG_ZENIFY
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+static int dirty_background_ratio = 20;
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+#else
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static int dirty_background_ratio = 10;
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+#endif
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/*
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* dirty_background_bytes starts at 0 (disabled) so that it is a function of
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@@ -88,7 +92,11 @@
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/*
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* The generator of dirty data starts writeback at this percentage
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*/
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+#ifdef CONFIG_ZENIFY
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+static int vm_dirty_ratio = 50;
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+#else
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static int vm_dirty_ratio = 20;
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+#endif
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/*
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* vm_dirty_bytes starts at 0 (disabled) so that it is a function of
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