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6.4.y: Add EEVDF (Earliest Eligible Virtual Deadline First) scheduler from Peter Zijlstra.

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Moved Zenify CFS tweaks to cfs-additions to prevent conflicts.

Squashed from https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/tree/?h=sched/eevdf&id=d07f09a1f99cabbc86bc5c97d962eb8a466106b5
This commit is contained in:
Tk-Glitch
2023-08-14 11:30:46 +02:00
parent 92281e4045
commit 992735baee
5 changed files with 2874 additions and 104 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
customization.cfg
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@@ -96,7 +96,8 @@ _STRIP="true"
# LEAVE AN EMPTY VALUE TO BE PROMPTED ABOUT FOLLOWING OPTIONS AT BUILD TIME
# CPU scheduler - Options are "upds" (TkG's Undead PDS), "pds", "bmq", "muqss", "cacule", "tt", "bore" or "cfs" (kernel's default)
# CPU scheduler - Options are "pds", "bmq", "cacule", "tt", "bore", "eevdf" or "cfs" (kernel's default)
# "upds" (TkG's Undead PDS) and "muqss" are also available on legacy kernel revisions
_cpusched=""
# Compiler to use - Options are "gcc" or "llvm".

8
linux-tkg-config/prepare
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@@ -252,6 +252,7 @@ _set_cpu_scheduler() {
["cacule"]="CacULE"
["tt"]="TT (TaskType)"
["bore"]="BORE (Burst-Oriented Response Enhancer) CPU Scheduler"
["eevdf"]="Earliest Eligible Virtual Deadline First (EEVDF) scheduler"
)
# CPU SCHED selector - _projectc_unoff=1 sets unofficial Project C revision flag for a given version
@@ -290,7 +291,7 @@ _set_cpu_scheduler() {
elif [ "$_kver" = "603" ]; then
_avail_cpu_scheds=("cfs" "pds" "bmq" "tt" "bore")
elif [ "$_kver" = "604" ]; then
_avail_cpu_scheds=("cfs" "pds" "bmq" "tt" "bore")
_avail_cpu_scheds=("cfs" "eevdf" "pds" "bmq" "tt" "bore")
else
_avail_cpu_scheds=("cfs")
fi
@@ -826,9 +827,12 @@ _tkg_srcprep() {
elif [ "${_cpusched}" = "cfs" ]; then
_msg="Applying Glitched CFS additions patch"
tkgpatch="$srcdir/0003-glitched-cfs-additions.patch" && _tkg_patcher
elif [ "${_cpusched}" = "eevdf" ]; then
_msg="Applying Earliest Eligible Virtual Deadline First (EEVDF) scheduler patch"
tkgpatch="$srcdir/0003-eevdf.patch" && _tkg_patcher
fi
if [ "${_cpusched}" = "cfs" ] || [ "${_cpusched}" = "cacule" ] || [ "${_cpusched}" = "tt" ] || [ "${_cpusched}" = "bore" ]; then
if [ "${_cpusched}" = "cfs" ] || [ "${_cpusched}" = "cacule" ] || [ "${_cpusched}" = "tt" ] || [ "${_cpusched}" = "bore" ] || [ "${_cpusched}" = "eevdf" ]; then
_msg="Applying Glitched CFS patch"
tkgpatch="$srcdir/0003-glitched-cfs.patch" && _tkg_patcher
fi

2758
linux-tkg-patches/6.4/0003-eevdf.patch Normal file
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File diff suppressed because it is too large Load Diff

103
linux-tkg-patches/6.4/0003-glitched-base.patch
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@@ -128,13 +128,11 @@ index 3a98439bba83..6efc4f907f58 100644
From f85ed068b4d0e6c31edce8574a95757a60e58b87 Mon Sep 17 00:00:00 2001
From: Etienne Juvigny <Ti3noU@gmail.com>
Date: Mon, 3 Sep 2018 17:36:25 +0200
Subject: [PATCH 07/17] Zenify & stuff
Subject: [PATCH 07/17] Add Zenify option
---
init/Kconfig | 32 ++++++++++++++++++++++++++++++++
kernel/sched/fair.c | 25 +++++++++++++++++++++++++
mm/page-writeback.c | 8 ++++++++
3 files changed, 65 insertions(+)
1 file changed, 32 insertions(+)
diff --git a/init/Kconfig b/init/Kconfig
index 3ae8678e1145..da708eed0f1e 100644
@@ -179,103 +177,6 @@ index 3ae8678e1145..da708eed0f1e 100644
config BROKEN
bool
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 6b3b59cc51d6..2a0072192c3d 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -37,8 +37,13 @@
*
* (default: 6ms * (1 + ilog(ncpus)), units: nanoseconds)
*/
+#ifdef CONFIG_ZENIFY
+unsigned int sysctl_sched_latency = 3000000ULL;
+static unsigned int normalized_sysctl_sched_latency = 3000000ULL;
+#else
unsigned int sysctl_sched_latency = 6000000ULL;
static unsigned int normalized_sysctl_sched_latency = 6000000ULL;
+#endif
/*
* The initial- and re-scaling of tunables is configurable
@@ -58,21 +63,34 @@ enum sched_tunable_scaling sysctl_sched_tunable_scaling = SCHED_TUNABLESCALING_L
*
* (default: 0.75 msec * (1 + ilog(ncpus)), units: nanoseconds)
*/
+#ifdef CONFIG_ZENIFY
+unsigned int sysctl_sched_min_granularity = 300000ULL;
+static unsigned int normalized_sysctl_sched_min_granularity = 300000ULL;
+#else
unsigned int sysctl_sched_min_granularity = 750000ULL;
static unsigned int normalized_sysctl_sched_min_granularity = 750000ULL;
+#endif
/*
* Minimal preemption granularity for CPU-bound SCHED_IDLE tasks.
* Applies only when SCHED_IDLE tasks compete with normal tasks.
*
* (default: 0.75 msec)
*/
+#ifdef CONFIG_ZENIFY
+unsigned int sysctl_sched_idle_min_granularity = 300000ULL;
+#else
unsigned int sysctl_sched_idle_min_granularity = 750000ULL;
+#endif
/*
* This value is kept at sysctl_sched_latency/sysctl_sched_min_granularity
*/
+#ifdef CONFIG_ZENIFY
+static unsigned int sched_nr_latency = 10;
+#else
static unsigned int sched_nr_latency = 8;
+#endif
/*
* After fork, child runs first. If set to 0 (default) then
@@ -128,8 +149,12 @@ int __weak arch_asym_cpu_priority(int cpu)
*
* (default: 5 msec, units: microseconds)
*/
+#ifdef CONFIG_ZENIFY
+static unsigned int sysctl_sched_cfs_bandwidth_slice = 3000UL;
+#else
static unsigned int sysctl_sched_cfs_bandwidth_slice = 5000UL;
#endif
+#endif
#ifdef CONFIG_SYSCTL
static struct ctl_table sched_fair_sysctls[] = {
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 28b3e7a67565..01a1aef2b9b1 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -71,7 +71,11 @@ static long ratelimit_pages = 32;
/*
* Start background writeback (via writeback threads) at this percentage
*/
+#ifdef CONFIG_ZENIFY
+static int dirty_background_ratio = 20;
+#else
static int dirty_background_ratio = 10;
+#endif
/*
* dirty_background_bytes starts at 0 (disabled) so that it is a function of
@@ -88,7 +92,11 @@ int vm_highmem_is_dirtyable;
/*
* The generator of dirty data starts writeback at this percentage
*/
+#ifdef CONFIG_ZENIFY
+static int vm_dirty_ratio = 50;
+#else
static int vm_dirty_ratio = 20;
+#endif
/*
* vm_dirty_bytes starts at 0 (disabled) so that it is a function of
--
2.28.0
From e92e67143385cf285851e12aa8b7f083dd38dd24 Mon Sep 17 00:00:00 2001
From: Steven Barrett <damentz@liquorix.net>

106
linux-tkg-patches/6.4/0003-glitched-cfs-additions.patch
View File

@@ -34,3 +34,109 @@ index 051aaf65c..705df5511 100644
static DEFINE_MUTEX(sched_energy_mutex);
static bool sched_energy_update;
From f85ed068b4d0e6c31edce8574a95757a60e58b87 Mon Sep 17 00:00:00 2001
From: Etienne Juvigny <Ti3noU@gmail.com>
Date: Mon, 3 Sep 2018 17:36:25 +0200
Subject: [PATCH] Zenify & stuff
---
kernel/sched/fair.c | 25 +++++++++++++++++++++++++
mm/page-writeback.c | 8 ++++++++
2 files changed, 33 insertions(+)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 6b3b59cc51d6..2a0072192c3d 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -37,8 +37,13 @@
*
* (default: 6ms * (1 + ilog(ncpus)), units: nanoseconds)
*/
+#ifdef CONFIG_ZENIFY
+unsigned int sysctl_sched_latency = 3000000ULL;
+static unsigned int normalized_sysctl_sched_latency = 3000000ULL;
+#else
unsigned int sysctl_sched_latency = 6000000ULL;
static unsigned int normalized_sysctl_sched_latency = 6000000ULL;
+#endif
/*
* The initial- and re-scaling of tunables is configurable
@@ -58,21 +63,34 @@ enum sched_tunable_scaling sysctl_sched_tunable_scaling = SCHED_TUNABLESCALING_L
*
* (default: 0.75 msec * (1 + ilog(ncpus)), units: nanoseconds)
*/
+#ifdef CONFIG_ZENIFY
+unsigned int sysctl_sched_min_granularity = 300000ULL;
+static unsigned int normalized_sysctl_sched_min_granularity = 300000ULL;
+#else
unsigned int sysctl_sched_min_granularity = 750000ULL;
static unsigned int normalized_sysctl_sched_min_granularity = 750000ULL;
+#endif
/*
* Minimal preemption granularity for CPU-bound SCHED_IDLE tasks.
* Applies only when SCHED_IDLE tasks compete with normal tasks.
*
* (default: 0.75 msec)
*/
+#ifdef CONFIG_ZENIFY
+unsigned int sysctl_sched_idle_min_granularity = 300000ULL;
+#else
unsigned int sysctl_sched_idle_min_granularity = 750000ULL;
+#endif
/*
* This value is kept at sysctl_sched_latency/sysctl_sched_min_granularity
*/
+#ifdef CONFIG_ZENIFY
+static unsigned int sched_nr_latency = 10;
+#else
static unsigned int sched_nr_latency = 8;
+#endif
/*
* After fork, child runs first. If set to 0 (default) then
@@ -128,8 +149,12 @@ int __weak arch_asym_cpu_priority(int cpu)
*
* (default: 5 msec, units: microseconds)
*/
+#ifdef CONFIG_ZENIFY
+static unsigned int sysctl_sched_cfs_bandwidth_slice = 3000UL;
+#else
static unsigned int sysctl_sched_cfs_bandwidth_slice = 5000UL;
#endif
+#endif
#ifdef CONFIG_SYSCTL
static struct ctl_table sched_fair_sysctls[] = {
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 28b3e7a67565..01a1aef2b9b1 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -71,7 +71,11 @@ static long ratelimit_pages = 32;
/*
* Start background writeback (via writeback threads) at this percentage
*/
+#ifdef CONFIG_ZENIFY
+static int dirty_background_ratio = 20;
+#else
static int dirty_background_ratio = 10;
+#endif
/*
* dirty_background_bytes starts at 0 (disabled) so that it is a function of
@@ -88,7 +92,11 @@ int vm_highmem_is_dirtyable;
/*
* The generator of dirty data starts writeback at this percentage
*/
+#ifdef CONFIG_ZENIFY
+static int vm_dirty_ratio = 50;
+#else
static int vm_dirty_ratio = 20;
+#endif
/*
* vm_dirty_bytes starts at 0 (disabled) so that it is a function of
--
2.28.0