From a3d0f42889809c61cb20d3fe6552625c270ffea3 Mon Sep 17 00:00:00 2001
From: wawryk <maciejx.wawryk@intel.com>
Date: Tue, 29 Jun 2021 11:36:51 +0200
Subject: [PATCH] test/vhost: Always enable performance cpu governor in Vhost
 performance tests

Signed-off-by: wawryk <maciejx.wawryk@intel.com>
Change-Id: Id0c1217b1c7138e7c618d816948ca34ba8a09be6
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8543
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Karol Latecki <karol.latecki@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
---
 test/vhost/perf_bench/vhost_perf.sh | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/test/vhost/perf_bench/vhost_perf.sh b/test/vhost/perf_bench/vhost_perf.sh
index 7c0ac3f7c..4b20c8c07 100755
--- a/test/vhost/perf_bench/vhost_perf.sh
+++ b/test/vhost/perf_bench/vhost_perf.sh
@@ -212,6 +212,15 @@ if [[ -z $disk_map ]]; then
 	fail "No disk map provided for test. Exiting."
 fi
 
+# ===== Enable "performance" cpu governor =====
+if hash cpupower; then
+	cpupower frequency-set -g performance
+else
+	echo "WARNING: Missing CPUPOWER!!! Please install."
+fi
+current_governor=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor)
+echo "INFO: Using $current_governor cpu governor for test."
+
 # ===== Precondition NVMes if specified =====
 if [[ $run_precondition == true ]]; then
 	# Using the same precondition routine possible for lvols thanks