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From 52156a00b590ef401b38dcc65720b344d67e86f6 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: Fri, 6 Dec 2019 16:37:11 +0100
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Subject: [PATCH] sap-hana: updated tuning
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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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Made sap-hana profile standalone.
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Resolves: rhbz#1779821
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Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
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---
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man/tuned-profiles-sap-hana.7 | 10 ++++++----
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profiles/sap-hana/tuned.conf | 9 ++++++++-
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2 files changed, 14 insertions(+), 5 deletions(-)
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diff --git a/man/tuned-profiles-sap-hana.7 b/man/tuned-profiles-sap-hana.7
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index 3c3e7fe..d5648a3 100644
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--- a/man/tuned-profiles-sap-hana.7
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+++ b/man/tuned-profiles-sap-hana.7
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@@ -30,10 +30,12 @@ The following profiles are provided:
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.TP
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.BI "sap\-hana"
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-A performance optimized profile for the SAP HANA applications.
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-It is based on throughput\-performance profile. It additionally disables
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-transparent hugepages, locks CPU to the low C states (by PM QoS) and tunes sysctl
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-regarding semaphores.
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+A performance optimized profile for the SAP HANA applications. It disables
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+power saving mechanisms and enables sysctl settings that improve throughput
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+performance of disk and network IO. CPU governor is set to performance and CPU
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+energy performance bias is set to performance. It also disables transparent
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+hugepages, locks CPU to the low C states (by PM QoS) and tunes sysctl regarding
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+semaphores.
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.SH "FILES"
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.nf
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diff --git a/profiles/sap-hana/tuned.conf b/profiles/sap-hana/tuned.conf
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index d74250b..8305f65 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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@@ -4,10 +4,12 @@
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[main]
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summary=Optimize for SAP HANA
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-include=throughput-performance
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[cpu]
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force_latency=cstate.id:3|70
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+governor=performance
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+energy_perf_bias=performance
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+min_perf_pct=100
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[vm]
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transparent_hugepages=never
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@@ -15,3 +17,8 @@ transparent_hugepages=never
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[sysctl]
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kernel.sem = 32000 1024000000 500 32000
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kernel.numa_balancing = 0
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+kernel.sched_min_granularity_ns = 3000000
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+kernel.sched_wakeup_granularity_ns = 4000000
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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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2.21.0
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