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profiles: drop sched_ tuning where appropriate

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According to the performance team measurements the sched_ tuning
should be dropped in several profiles.

Resolves: rhbz#1957829

Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
This commit is contained in:
Jaroslav Škarvada 2021-06-30 22:00:19 +02:00
parent a936fb8844
commit c6d6fdcc4c
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GPG key ID: D8E1C00E076E840B
4 changed files with 0 additions and 45 deletions
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13
profiles/latency-performance/tuned.conf
View file

@ -32,16 +32,3 @@ vm.dirty_background_ratio=3
# 100 tells the kernel to aggressively swap processes out of physical memory
# and move them to swap cache
vm.swappiness=10
[scheduler]
# ktune sysctl settings for rhel6 servers, maximizing i/o throughput
#
# Minimal preemption granularity for CPU-bound tasks:
# (default: 1 msec# (1 + ilog(ncpus)), units: nanoseconds)
sched_min_granularity_ns = 3000000
sched_wakeup_granularity_ns = 4000000
# The total time the scheduler will consider a migrated process
# "cache hot" and thus less likely to be re-migrated
# (system default is 500000, i.e. 0.5 ms)
sched_migration_cost_ns = 5000000

4
profiles/sap-hana/tuned.conf
View file

@ -20,7 +20,3 @@ kernel.numa_balancing = 0
vm.dirty_ratio = 40
vm.dirty_background_ratio = 10
vm.swappiness = 10
[scheduler]
sched_min_granularity_ns = 3000000
sched_wakeup_granularity_ns = 4000000

22
profiles/throughput-performance/tuned.conf
View file

@ -58,31 +58,9 @@ vm.dirty_background_ratio = 10
# and move them to swap cache
vm.swappiness=10
[scheduler]
# ktune sysctl settings for rhel6 servers, maximizing i/o throughput
#
# Minimal preemption granularity for CPU-bound tasks:
# (default: 1 msec# (1 + ilog(ncpus)), units: nanoseconds)
sched_min_granularity_ns = 10000000
# SCHED_OTHER wake-up granularity.
# (default: 1 msec# (1 + ilog(ncpus)), units: nanoseconds)
#
# This option delays the preemption effects of decoupled workloads
# and reduces their over-scheduling. Synchronous workloads will still
# have immediate wakeup/sleep latencies.
sched_wakeup_granularity_ns = 15000000
# Marvell ThunderX
[sysctl.thunderx]
type=sysctl
uname_regex=aarch64
cpuinfo_regex=${thunderx_cpuinfo_regex}
kernel.numa_balancing=0
# AMD
[scheduler.amd]
type=scheduler
uname_regex=x86_64
cpuinfo_regex=${amd_cpuinfo_regex}
sched_migration_cost_ns=5000000

6
profiles/virtual-host/tuned.conf
View file

@ -14,9 +14,3 @@ vm.dirty_background_ratio = 5
[cpu]
# Setting C3 state sleep mode/power savings
force_latency=cstate.id:3|70
[scheduler]
# The total time the scheduler will consider a migrated process
# "cache hot" and thus less likely to be re-migrated
# (system default is 500000, i.e. 0.5 ms)
sched_migration_cost_ns = 5000000