114 lines
3.7 KiB
Diff
114 lines
3.7 KiB
Diff
From c6d6fdcc4c944df9998e0ebe75f31cc8aed452c1 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Jaroslav=20=C5=A0karvada?= <jskarvad@redhat.com>
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Date: Wed, 30 Jun 2021 22:00:19 +0200
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Subject: [PATCH] profiles: drop sched_ tuning where appropriate
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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According to the performance team measurements the sched_ tuning
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should be dropped in several profiles.
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Resolves: rhbz#1957829
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Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
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---
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profiles/latency-performance/tuned.conf | 13 -------------
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profiles/sap-hana/tuned.conf | 4 ----
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profiles/throughput-performance/tuned.conf | 22 ----------------------
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profiles/virtual-host/tuned.conf | 6 ------
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4 files changed, 45 deletions(-)
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diff --git a/profiles/latency-performance/tuned.conf b/profiles/latency-performance/tuned.conf
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index 585c836..c780602 100644
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--- a/profiles/latency-performance/tuned.conf
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+++ b/profiles/latency-performance/tuned.conf
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@@ -36,18 +36,5 @@ vm.dirty_background_ratio=3
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# and move them to swap cache
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vm.swappiness=10
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-[scheduler]
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-# ktune sysctl settings for rhel6 servers, maximizing i/o throughput
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-#
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-# Minimal preemption granularity for CPU-bound tasks:
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-# (default: 1 msec# (1 + ilog(ncpus)), units: nanoseconds)
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-sched_min_granularity_ns = 3000000
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-sched_wakeup_granularity_ns = 4000000
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-
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-# The total time the scheduler will consider a migrated process
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-# "cache hot" and thus less likely to be re-migrated
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-# (system default is 500000, i.e. 0.5 ms)
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-sched_migration_cost_ns = 5000000
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-
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[video]
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panel_power_savings=0
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diff --git a/profiles/sap-hana/tuned.conf b/profiles/sap-hana/tuned.conf
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index 8dcee57..aeecf53 100644
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--- a/profiles/sap-hana/tuned.conf
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+++ b/profiles/sap-hana/tuned.conf
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@@ -20,7 +20,3 @@ kernel.numa_balancing = 0
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vm.dirty_ratio = 40
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vm.dirty_background_ratio = 10
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vm.swappiness = 10
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-
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-[scheduler]
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-sched_min_granularity_ns = 3000000
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-sched_wakeup_granularity_ns = 4000000
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diff --git a/profiles/throughput-performance/tuned.conf b/profiles/throughput-performance/tuned.conf
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index 738a8a0..734fedc 100644
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--- a/profiles/throughput-performance/tuned.conf
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+++ b/profiles/throughput-performance/tuned.conf
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@@ -66,21 +66,6 @@ vm.swappiness=10
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# on older kernels
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net.core.somaxconn=>2048
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-[scheduler]
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-# ktune sysctl settings for rhel6 servers, maximizing i/o throughput
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-#
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-# Minimal preemption granularity for CPU-bound tasks:
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-# (default: 1 msec# (1 + ilog(ncpus)), units: nanoseconds)
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-sched_min_granularity_ns = 10000000
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-
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-# SCHED_OTHER wake-up granularity.
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-# (default: 1 msec# (1 + ilog(ncpus)), units: nanoseconds)
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-#
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-# This option delays the preemption effects of decoupled workloads
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-# and reduces their over-scheduling. Synchronous workloads will still
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-# have immediate wakeup/sleep latencies.
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-sched_wakeup_granularity_ns = 15000000
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-
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# Marvell ThunderX
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[sysctl.thunderx]
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type=sysctl
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@@ -88,12 +73,5 @@ uname_regex=aarch64
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cpuinfo_regex=${thunderx_cpuinfo_regex}
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kernel.numa_balancing=0
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-# AMD
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-[scheduler.amd]
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-type=scheduler
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-uname_regex=x86_64
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-cpuinfo_regex=${amd_cpuinfo_regex}
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-sched_migration_cost_ns=5000000
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-
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[video]
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panel_power_savings=0
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diff --git a/profiles/virtual-host/tuned.conf b/profiles/virtual-host/tuned.conf
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index 74a5fb0..5301d9f 100644
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--- a/profiles/virtual-host/tuned.conf
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+++ b/profiles/virtual-host/tuned.conf
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@@ -14,9 +14,3 @@ vm.dirty_background_ratio = 5
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[cpu]
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# Setting C3 state sleep mode/power savings
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force_latency=cstate.id_no_zero:3|70
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-
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-[scheduler]
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-# The total time the scheduler will consider a migrated process
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-# "cache hot" and thus less likely to be re-migrated
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-# (system default is 500000, i.e. 0.5 ms)
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-sched_migration_cost_ns = 5000000
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--
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2.43.0
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