From 0e83b0d03c0907d99f7f709482476267c903c2dd Mon Sep 17 00:00:00 2001 From: Michael Tremer Date: Fri, 17 Sep 2021 11:42:17 +0000 Subject: [PATCH] kernel: Change timer tick to 1000Hz MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This change is required to make the system respond faster to any realtime events (sending or receiving data packets). It will wake up at least one core 1000 times a second which will result in finer timer granularity and make scheduling smoother. HTB for example sends large packet bursts on each timer even to keep up data rates which is not helpful for most applications. The change might increase resource consumption and overhead slightly on some systems, but since we are running in an idle-dyntick configuration, we should not keep awake any cores that have not been awake before. Signed-off-by: Michael Tremer Acked-by: Peter Müller Signed-off-by: Arne Fitzenreiter --- config/kernel/kernel.config.aarch64-ipfire | 6 +++--- config/kernel/kernel.config.armv6l-ipfire | 6 +++--- config/kernel/kernel.config.i586-ipfire | 6 +++--- config/kernel/kernel.config.x86_64-ipfire | 6 +++--- 4 files changed, 12 insertions(+), 12 deletions(-) diff --git a/config/kernel/kernel.config.aarch64-ipfire b/config/kernel/kernel.config.aarch64-ipfire index 450835d8b5..54cd7c084d 100644 --- a/config/kernel/kernel.config.aarch64-ipfire +++ b/config/kernel/kernel.config.aarch64-ipfire @@ -370,11 +370,11 @@ CONFIG_NR_CPUS=8 CONFIG_HOTPLUG_CPU=y # CONFIG_NUMA is not set CONFIG_HOLES_IN_ZONE=y -CONFIG_HZ_100=y +# CONFIG_HZ_100 is not set # CONFIG_HZ_250 is not set # CONFIG_HZ_300 is not set -# CONFIG_HZ_1000 is not set -CONFIG_HZ=100 +CONFIG_HZ_1000=y +CONFIG_HZ=1000 CONFIG_SCHED_HRTICK=y CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y CONFIG_ARCH_SPARSEMEM_ENABLE=y diff --git a/config/kernel/kernel.config.armv6l-ipfire b/config/kernel/kernel.config.armv6l-ipfire index b1af6555c4..6fe17954dc 100644 --- a/config/kernel/kernel.config.armv6l-ipfire +++ b/config/kernel/kernel.config.armv6l-ipfire @@ -588,13 +588,13 @@ CONFIG_HOTPLUG_CPU=y CONFIG_ARM_PSCI=y CONFIG_ARCH_NR_GPIO=512 CONFIG_HZ_FIXED=0 -CONFIG_HZ_100=y +# CONFIG_HZ_100 is not set # CONFIG_HZ_200 is not set # CONFIG_HZ_250 is not set # CONFIG_HZ_300 is not set # CONFIG_HZ_500 is not set -# CONFIG_HZ_1000 is not set -CONFIG_HZ=100 +CONFIG_HZ_1000=y +CONFIG_HZ=1000 CONFIG_SCHED_HRTICK=y CONFIG_ARM_PATCH_IDIV=y CONFIG_AEABI=y diff --git a/config/kernel/kernel.config.i586-ipfire b/config/kernel/kernel.config.i586-ipfire index 5f5a496a8c..a915682e48 100644 --- a/config/kernel/kernel.config.i586-ipfire +++ b/config/kernel/kernel.config.i586-ipfire @@ -438,11 +438,11 @@ CONFIG_X86_INTEL_TSX_MODE_OFF=y # CONFIG_X86_INTEL_TSX_MODE_AUTO is not set CONFIG_EFI=y CONFIG_EFI_STUB=y -CONFIG_HZ_100=y +# CONFIG_HZ_100 is not set # CONFIG_HZ_250 is not set # CONFIG_HZ_300 is not set -# CONFIG_HZ_1000 is not set -CONFIG_HZ=100 +CONFIG_HZ_1000=y +CONFIG_HZ=1000 CONFIG_SCHED_HRTICK=y # CONFIG_KEXEC is not set CONFIG_CRASH_DUMP=y diff --git a/config/kernel/kernel.config.x86_64-ipfire b/config/kernel/kernel.config.x86_64-ipfire index f8289aeb89..730e0791ef 100644 --- a/config/kernel/kernel.config.x86_64-ipfire +++ b/config/kernel/kernel.config.x86_64-ipfire @@ -430,11 +430,11 @@ CONFIG_X86_INTEL_TSX_MODE_OFF=y CONFIG_EFI=y CONFIG_EFI_STUB=y CONFIG_EFI_MIXED=y -CONFIG_HZ_100=y +# CONFIG_HZ_100 is not set # CONFIG_HZ_250 is not set # CONFIG_HZ_300 is not set -# CONFIG_HZ_1000 is not set -CONFIG_HZ=100 +CONFIG_HZ_1000=y +CONFIG_HZ=1000 CONFIG_SCHED_HRTICK=y # CONFIG_KEXEC is not set # CONFIG_KEXEC_FILE is not set -- 2.39.5