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 michael.tremer@ipfire.org --- 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 450835d8b..54cd7c084 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 b1af6555c..6fe17954d 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 5f5a496a8..a915682e4 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 f8289aeb8..730e0791e 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
We do not make any use of this functionality
Signed-off-by: Michael Tremer michael.tremer@ipfire.org --- config/kernel/kernel.config.aarch64-ipfire | 4 +--- config/kernel/kernel.config.armv6l-ipfire | 4 +--- config/kernel/kernel.config.i586-ipfire | 5 +---- config/kernel/kernel.config.x86_64-ipfire | 5 +---- 4 files changed, 4 insertions(+), 14 deletions(-)
diff --git a/config/kernel/kernel.config.aarch64-ipfire b/config/kernel/kernel.config.aarch64-ipfire index 54cd7c084..589e0440d 100644 --- a/config/kernel/kernel.config.aarch64-ipfire +++ b/config/kernel/kernel.config.aarch64-ipfire @@ -480,9 +480,7 @@ CONFIG_SYSVIPC_COMPAT=y # # Power management options # -CONFIG_SUSPEND=y -CONFIG_SUSPEND_FREEZER=y -# CONFIG_SUSPEND_SKIP_SYNC is not set +# CONFIG_SUSPEND is not set # CONFIG_HIBERNATION is not set CONFIG_PM_SLEEP=y CONFIG_PM_SLEEP_SMP=y diff --git a/config/kernel/kernel.config.armv6l-ipfire b/config/kernel/kernel.config.armv6l-ipfire index 6fe17954d..1dc5b1c58 100644 --- a/config/kernel/kernel.config.armv6l-ipfire +++ b/config/kernel/kernel.config.armv6l-ipfire @@ -702,9 +702,7 @@ CONFIG_NEON=y # # Power management options # -CONFIG_SUSPEND=y -CONFIG_SUSPEND_FREEZER=y -# CONFIG_SUSPEND_SKIP_SYNC is not set +# CONFIG_SUSPEND is not set # CONFIG_HIBERNATION is not set CONFIG_PM_SLEEP=y CONFIG_PM_SLEEP_SMP=y diff --git a/config/kernel/kernel.config.i586-ipfire b/config/kernel/kernel.config.i586-ipfire index a915682e4..b159db581 100644 --- a/config/kernel/kernel.config.i586-ipfire +++ b/config/kernel/kernel.config.i586-ipfire @@ -464,9 +464,7 @@ CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y # # Power management and ACPI options # -CONFIG_SUSPEND=y -CONFIG_SUSPEND_FREEZER=y -# CONFIG_SUSPEND_SKIP_SYNC is not set +# CONFIG_SUSPEND is not set # CONFIG_HIBERNATION is not set CONFIG_PM_SLEEP=y CONFIG_PM_SLEEP_SMP=y @@ -484,7 +482,6 @@ CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y # CONFIG_ACPI_DEBUGGER is not set CONFIG_ACPI_SPCR_TABLE=y -CONFIG_ACPI_SLEEP=y CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y CONFIG_ACPI_EC_DEBUGFS=m CONFIG_ACPI_AC=y diff --git a/config/kernel/kernel.config.x86_64-ipfire b/config/kernel/kernel.config.x86_64-ipfire index 730e0791e..bf738bda5 100644 --- a/config/kernel/kernel.config.x86_64-ipfire +++ b/config/kernel/kernel.config.x86_64-ipfire @@ -468,9 +468,7 @@ CONFIG_ARCH_ENABLE_THP_MIGRATION=y # # Power management and ACPI options # -CONFIG_SUSPEND=y -CONFIG_SUSPEND_FREEZER=y -# CONFIG_SUSPEND_SKIP_SYNC is not set +# CONFIG_SUSPEND is not set CONFIG_HIBERNATE_CALLBACKS=y # CONFIG_HIBERNATION is not set CONFIG_PM_SLEEP=y @@ -490,7 +488,6 @@ CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y # CONFIG_ACPI_DEBUGGER is not set CONFIG_ACPI_SPCR_TABLE=y CONFIG_ACPI_LPIT=y -CONFIG_ACPI_SLEEP=y CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y CONFIG_ACPI_EC_DEBUGFS=m CONFIG_ACPI_AC=y
This feature is now disabled (was disabled on ARM before) as we do not need it:
"Select this option to enable fine granularity task irq time accounting. This is done by reading a timestamp on each transitions between softirq and hardirq state, so there can be a small performance impact."
Signed-off-by: Michael Tremer michael.tremer@ipfire.org --- config/kernel/kernel.config.i586-ipfire | 2 +- config/kernel/kernel.config.x86_64-ipfire | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/config/kernel/kernel.config.i586-ipfire b/config/kernel/kernel.config.i586-ipfire index b159db581..ff94e949e 100644 --- a/config/kernel/kernel.config.i586-ipfire +++ b/config/kernel/kernel.config.i586-ipfire @@ -103,7 +103,7 @@ CONFIG_PREEMPT_VOLUNTARY=y # CPU/Task time and stats accounting # CONFIG_TICK_CPU_ACCOUNTING=y -CONFIG_IRQ_TIME_ACCOUNTING=y +# CONFIG_IRQ_TIME_ACCOUNTING is not set CONFIG_HAVE_SCHED_AVG_IRQ=y CONFIG_BSD_PROCESS_ACCT=y # CONFIG_BSD_PROCESS_ACCT_V3 is not set diff --git a/config/kernel/kernel.config.x86_64-ipfire b/config/kernel/kernel.config.x86_64-ipfire index bf738bda5..43c483f00 100644 --- a/config/kernel/kernel.config.x86_64-ipfire +++ b/config/kernel/kernel.config.x86_64-ipfire @@ -107,7 +107,7 @@ CONFIG_PREEMPT_VOLUNTARY=y # CONFIG_TICK_CPU_ACCOUNTING=y # CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set -CONFIG_IRQ_TIME_ACCOUNTING=y +# CONFIG_IRQ_TIME_ACCOUNTING is not set CONFIG_HAVE_SCHED_AVG_IRQ=y CONFIG_BSD_PROCESS_ACCT=y # CONFIG_BSD_PROCESS_ACCT_V3 is not set
This is a new type of metric to find out what resource is currently a bottleneck for the whole system. We might use this for graphs.
Signed-off-by: Michael Tremer michael.tremer@ipfire.org --- config/kernel/kernel.config.aarch64-ipfire | 3 ++- config/kernel/kernel.config.armv6l-ipfire | 3 ++- config/kernel/kernel.config.i586-ipfire | 3 ++- config/kernel/kernel.config.x86_64-ipfire | 3 ++- 4 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/config/kernel/kernel.config.aarch64-ipfire b/config/kernel/kernel.config.aarch64-ipfire index 589e0440d..d0ec69ba9 100644 --- a/config/kernel/kernel.config.aarch64-ipfire +++ b/config/kernel/kernel.config.aarch64-ipfire @@ -95,7 +95,8 @@ CONFIG_TASKSTATS=y CONFIG_TASK_DELAY_ACCT=y CONFIG_TASK_XACCT=y CONFIG_TASK_IO_ACCOUNTING=y -# CONFIG_PSI is not set +CONFIG_PSI=y +# CONFIG_PSI_DEFAULT_DISABLED is not set # end of CPU/Task time and stats accounting
CONFIG_CPU_ISOLATION=y diff --git a/config/kernel/kernel.config.armv6l-ipfire b/config/kernel/kernel.config.armv6l-ipfire index 1dc5b1c58..a23906796 100644 --- a/config/kernel/kernel.config.armv6l-ipfire +++ b/config/kernel/kernel.config.armv6l-ipfire @@ -103,7 +103,8 @@ CONFIG_TASKSTATS=y CONFIG_TASK_DELAY_ACCT=y CONFIG_TASK_XACCT=y CONFIG_TASK_IO_ACCOUNTING=y -# CONFIG_PSI is not set +CONFIG_PSI=y +# CONFIG_PSI_DEFAULT_DISABLED is not set # end of CPU/Task time and stats accounting
CONFIG_CPU_ISOLATION=y diff --git a/config/kernel/kernel.config.i586-ipfire b/config/kernel/kernel.config.i586-ipfire index ff94e949e..9c49a90d8 100644 --- a/config/kernel/kernel.config.i586-ipfire +++ b/config/kernel/kernel.config.i586-ipfire @@ -111,7 +111,8 @@ CONFIG_TASKSTATS=y CONFIG_TASK_DELAY_ACCT=y CONFIG_TASK_XACCT=y CONFIG_TASK_IO_ACCOUNTING=y -# CONFIG_PSI is not set +CONFIG_PSI=y +# CONFIG_PSI_DEFAULT_DISABLED is not set # end of CPU/Task time and stats accounting
CONFIG_CPU_ISOLATION=y diff --git a/config/kernel/kernel.config.x86_64-ipfire b/config/kernel/kernel.config.x86_64-ipfire index 43c483f00..0a1f67074 100644 --- a/config/kernel/kernel.config.x86_64-ipfire +++ b/config/kernel/kernel.config.x86_64-ipfire @@ -115,7 +115,8 @@ CONFIG_TASKSTATS=y CONFIG_TASK_DELAY_ACCT=y CONFIG_TASK_XACCT=y CONFIG_TASK_IO_ACCOUNTING=y -# CONFIG_PSI is not set +CONFIG_PSI=y +# CONFIG_PSI_DEFAULT_DISABLED is not set # end of CPU/Task time and stats accounting
CONFIG_CPU_ISOLATION=y
Hello,
This patchset is unfortunately incomplete due to the rate limiting on our mailserver.
I will submit it again as soon as that is being fixed.
-Michael
On 7 Sep 2021, at 16:02, Michael Tremer michael.tremer@ipfire.org wrote:
This is a new type of metric to find out what resource is currently a bottleneck for the whole system. We might use this for graphs.
Signed-off-by: Michael Tremer michael.tremer@ipfire.org
config/kernel/kernel.config.aarch64-ipfire | 3 ++- config/kernel/kernel.config.armv6l-ipfire | 3 ++- config/kernel/kernel.config.i586-ipfire | 3 ++- config/kernel/kernel.config.x86_64-ipfire | 3 ++- 4 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/config/kernel/kernel.config.aarch64-ipfire b/config/kernel/kernel.config.aarch64-ipfire index 589e0440d..d0ec69ba9 100644 --- a/config/kernel/kernel.config.aarch64-ipfire +++ b/config/kernel/kernel.config.aarch64-ipfire @@ -95,7 +95,8 @@ CONFIG_TASKSTATS=y CONFIG_TASK_DELAY_ACCT=y CONFIG_TASK_XACCT=y CONFIG_TASK_IO_ACCOUNTING=y -# CONFIG_PSI is not set +CONFIG_PSI=y +# CONFIG_PSI_DEFAULT_DISABLED is not set # end of CPU/Task time and stats accounting
CONFIG_CPU_ISOLATION=y diff --git a/config/kernel/kernel.config.armv6l-ipfire b/config/kernel/kernel.config.armv6l-ipfire index 1dc5b1c58..a23906796 100644 --- a/config/kernel/kernel.config.armv6l-ipfire +++ b/config/kernel/kernel.config.armv6l-ipfire @@ -103,7 +103,8 @@ CONFIG_TASKSTATS=y CONFIG_TASK_DELAY_ACCT=y CONFIG_TASK_XACCT=y CONFIG_TASK_IO_ACCOUNTING=y -# CONFIG_PSI is not set +CONFIG_PSI=y +# CONFIG_PSI_DEFAULT_DISABLED is not set # end of CPU/Task time and stats accounting
CONFIG_CPU_ISOLATION=y diff --git a/config/kernel/kernel.config.i586-ipfire b/config/kernel/kernel.config.i586-ipfire index ff94e949e..9c49a90d8 100644 --- a/config/kernel/kernel.config.i586-ipfire +++ b/config/kernel/kernel.config.i586-ipfire @@ -111,7 +111,8 @@ CONFIG_TASKSTATS=y CONFIG_TASK_DELAY_ACCT=y CONFIG_TASK_XACCT=y CONFIG_TASK_IO_ACCOUNTING=y -# CONFIG_PSI is not set +CONFIG_PSI=y +# CONFIG_PSI_DEFAULT_DISABLED is not set # end of CPU/Task time and stats accounting
CONFIG_CPU_ISOLATION=y diff --git a/config/kernel/kernel.config.x86_64-ipfire b/config/kernel/kernel.config.x86_64-ipfire index 43c483f00..0a1f67074 100644 --- a/config/kernel/kernel.config.x86_64-ipfire +++ b/config/kernel/kernel.config.x86_64-ipfire @@ -115,7 +115,8 @@ CONFIG_TASKSTATS=y CONFIG_TASK_DELAY_ACCT=y CONFIG_TASK_XACCT=y CONFIG_TASK_IO_ACCOUNTING=y -# CONFIG_PSI is not set +CONFIG_PSI=y +# CONFIG_PSI_DEFAULT_DISABLED is not set # end of CPU/Task time and stats accounting
CONFIG_CPU_ISOLATION=y
2.20.1
This is not necessary on our systems and according to the documentation will reduce code size of the allocator which will result in better performance.
Signed-off-by: Michael Tremer michael.tremer@ipfire.org --- config/kernel/kernel.config.aarch64-ipfire | 3 +-- config/kernel/kernel.config.armv6l-ipfire | 3 +-- config/kernel/kernel.config.i586-ipfire | 3 +-- config/kernel/kernel.config.x86_64-ipfire | 3 +-- 4 files changed, 4 insertions(+), 8 deletions(-)
diff --git a/config/kernel/kernel.config.aarch64-ipfire b/config/kernel/kernel.config.aarch64-ipfire index d0ec69ba9..b277a17b5 100644 --- a/config/kernel/kernel.config.aarch64-ipfire +++ b/config/kernel/kernel.config.aarch64-ipfire @@ -226,7 +226,7 @@ CONFIG_PERF_EVENTS=y # end of Kernel Performance Events And Counters
CONFIG_VM_EVENT_COUNTERS=y -CONFIG_SLUB_DEBUG=y +# CONFIG_SLUB_DEBUG is not set # CONFIG_SLUB_MEMCG_SYSFS_ON is not set # CONFIG_COMPAT_BRK is not set # CONFIG_SLAB is not set @@ -7751,7 +7751,6 @@ CONFIG_GENERIC_PTDUMP=y CONFIG_PTDUMP_CORE=y # CONFIG_PTDUMP_DEBUGFS is not set # CONFIG_DEBUG_OBJECTS is not set -# CONFIG_SLUB_DEBUG_ON is not set # CONFIG_SLUB_STATS is not set CONFIG_HAVE_DEBUG_KMEMLEAK=y # CONFIG_DEBUG_KMEMLEAK is not set diff --git a/config/kernel/kernel.config.armv6l-ipfire b/config/kernel/kernel.config.armv6l-ipfire index a23906796..9d63b36ac 100644 --- a/config/kernel/kernel.config.armv6l-ipfire +++ b/config/kernel/kernel.config.armv6l-ipfire @@ -227,7 +227,7 @@ CONFIG_PERF_EVENTS=y # end of Kernel Performance Events And Counters
CONFIG_VM_EVENT_COUNTERS=y -CONFIG_SLUB_DEBUG=y +# CONFIG_SLUB_DEBUG is not set # CONFIG_SLUB_MEMCG_SYSFS_ON is not set # CONFIG_COMPAT_BRK is not set # CONFIG_SLAB is not set @@ -7826,7 +7826,6 @@ CONFIG_DEBUG_MISC=y # CONFIG_DEBUG_RODATA_TEST is not set # CONFIG_DEBUG_WX is not set # CONFIG_DEBUG_OBJECTS is not set -# CONFIG_SLUB_DEBUG_ON is not set # CONFIG_SLUB_STATS is not set CONFIG_HAVE_DEBUG_KMEMLEAK=y # CONFIG_DEBUG_KMEMLEAK is not set diff --git a/config/kernel/kernel.config.i586-ipfire b/config/kernel/kernel.config.i586-ipfire index 9c49a90d8..56b40eac7 100644 --- a/config/kernel/kernel.config.i586-ipfire +++ b/config/kernel/kernel.config.i586-ipfire @@ -235,7 +235,7 @@ CONFIG_PERF_EVENTS=y # end of Kernel Performance Events And Counters
CONFIG_VM_EVENT_COUNTERS=y -CONFIG_SLUB_DEBUG=y +# CONFIG_SLUB_DEBUG is not set # CONFIG_COMPAT_BRK is not set # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -7383,7 +7383,6 @@ CONFIG_GENERIC_PTDUMP=y CONFIG_PTDUMP_CORE=y # CONFIG_PTDUMP_DEBUGFS is not set # CONFIG_DEBUG_OBJECTS is not set -# CONFIG_SLUB_DEBUG_ON is not set # CONFIG_SLUB_STATS is not set CONFIG_HAVE_DEBUG_KMEMLEAK=y # CONFIG_DEBUG_KMEMLEAK is not set diff --git a/config/kernel/kernel.config.x86_64-ipfire b/config/kernel/kernel.config.x86_64-ipfire index 0a1f67074..8247e9b48 100644 --- a/config/kernel/kernel.config.x86_64-ipfire +++ b/config/kernel/kernel.config.x86_64-ipfire @@ -245,7 +245,7 @@ CONFIG_PERF_EVENTS=y # end of Kernel Performance Events And Counters
CONFIG_VM_EVENT_COUNTERS=y -CONFIG_SLUB_DEBUG=y +# CONFIG_SLUB_DEBUG is not set # CONFIG_COMPAT_BRK is not set # CONFIG_SLAB is not set CONFIG_SLUB=y @@ -7249,7 +7249,6 @@ CONFIG_GENERIC_PTDUMP=y CONFIG_PTDUMP_CORE=y # CONFIG_PTDUMP_DEBUGFS is not set # CONFIG_DEBUG_OBJECTS is not set -# CONFIG_SLUB_DEBUG_ON is not set # CONFIG_SLUB_STATS is not set CONFIG_HAVE_DEBUG_KMEMLEAK=y # CONFIG_DEBUG_KMEMLEAK is not set
-
Michael Tremer