From 52156a00b590ef401b38dcc65720b344d67e86f6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jaroslav=20=C5=A0karvada?= <jskarvad@redhat.com>
Date: Fri, 6 Dec 2019 16:37:11 +0100
Subject: [PATCH] sap-hana: updated tuning
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Made sap-hana profile standalone.
Resolves: rhbz#1779821
Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
---
man/tuned-profiles-sap-hana.7 | 10 ++++++----
profiles/sap-hana/tuned.conf | 9 ++++++++-
2 files changed, 14 insertions(+), 5 deletions(-)
diff --git a/man/tuned-profiles-sap-hana.7 b/man/tuned-profiles-sap-hana.7
index 3c3e7fe..d5648a3 100644
--- a/man/tuned-profiles-sap-hana.7
+++ b/man/tuned-profiles-sap-hana.7
@@ -30,10 +30,12 @@ The following profiles are provided:
.TP
.BI "sap\-hana"
-A performance optimized profile for the SAP HANA applications.
-It is based on throughput\-performance profile. It additionally disables
-transparent hugepages, locks CPU to the low C states (by PM QoS) and tunes sysctl
-regarding semaphores.
+A performance optimized profile for the SAP HANA applications. It disables
+power saving mechanisms and enables sysctl settings that improve throughput
+performance of disk and network IO. CPU governor is set to performance and CPU
+energy performance bias is set to performance. It also disables transparent
+hugepages, locks CPU to the low C states (by PM QoS) and tunes sysctl regarding
+semaphores.
.SH "FILES"
.nf
diff --git a/profiles/sap-hana/tuned.conf b/profiles/sap-hana/tuned.conf
index d74250b..8305f65 100644
--- a/profiles/sap-hana/tuned.conf
+++ b/profiles/sap-hana/tuned.conf
@@ -4,10 +4,12 @@
[main]
summary=Optimize for SAP HANA
-include=throughput-performance
[cpu]
force_latency=cstate.id:3|70
+governor=performance
+energy_perf_bias=performance
+min_perf_pct=100
[vm]
transparent_hugepages=never
@@ -15,3 +17,8 @@ transparent_hugepages=never
[sysctl]
kernel.sem = 32000 1024000000 500 32000
kernel.numa_balancing = 0
+kernel.sched_min_granularity_ns = 3000000
+kernel.sched_wakeup_granularity_ns = 4000000
+vm.dirty_ratio = 40
+vm.dirty_background_ratio = 10
+vm.swappiness = 10
--
2.21.0