Merge pull request #529 from newkit/master

Added sap-hana-kvm-guest profile

man/tuned-profiles-sap-hana.7

@@ -37,6 +37,13 @@ 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.
 
+.TP
+.BI "sap\-hana\-kvm\-guest"
+A performance optimized profile for the SAP HANA application when running as
+virtual guest on KVM. It loads the cpuidle-haltpoll driver to ensure lower
+latencies (at the cost of a higher power consumption).
+The clocksource is set to TSC, skew_tick is enabled.
+
 .SH "FILES"
 .nf
 .I /etc/tuned/*

profiles/sap-hana-kvm-guest/tuned.conf

@@ -0,0 +1,18 @@
+#
+# tuned configuration
+#
+[main]
+summary=Optimize for running SAP HANA on KVM inside a virtual guest
+include=sap-hana
+
+[modules]
+cpuidle-haltpoll=+r force
+
+[sysfs]
+priority=10
+/sys/devices/system/clocksource/clocksource0/current_clocksource=tsc
+/sys/module/haltpoll/parameters/guest_halt_poll_ns=2400000
+/sys/module/haltpoll/parameters/guest_halt_poll_grow_start=2400000
+
+[bootloader]
+cmdline_saphana=skew_tick=1      

tuned.spec

@@ -415,6 +415,7 @@ fi
 %exclude %{_prefix}/lib/tuned/spindown-disk
 %exclude %{_prefix}/lib/tuned/sap-netweaver
 %exclude %{_prefix}/lib/tuned/sap-hana
+%exclude %{_prefix}/lib/tuned/sap-hana-kvm-guest
 %exclude %{_prefix}/lib/tuned/mssql
 %exclude %{_prefix}/lib/tuned/oracle
 %exclude %{_prefix}/lib/tuned/atomic-host
@@ -490,6 +491,7 @@ fi
 
 %files profiles-sap-hana
 %{_prefix}/lib/tuned/sap-hana
+%{_prefix}/lib/tuned/sap-hana-kvm-guest
 %{_mandir}/man7/tuned-profiles-sap-hana.7*
 
 %files profiles-mssql