Add cpu_set_perf_perc on Linux.

ansible/roles/cpu/files/cpu_set_perf_perc_linux

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+#
+# Tell speedshift whether to maximize CPU performance (100) or energy
+# efficiency (0).
+set -euo pipefail
+IFS=$'\n\t'
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+perc=$1
+
+if [ $perc -lt 50 ]; then
+    echo "power" | tee /sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference
+else
+    echo "performance" | tee /sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference
+fi

ansible/roles/cpu/tasks/freebsd_intel.yaml

@@ -65,7 +65,7 @@
     owner: root
     group: wheel
   loop:
-    - src: cpu_set_perf_perc
+    - src: cpu_set_perf_perc_freebsd
       dest: /usr/local/bin/cpu_set_perf_perc
 
 - name: Install loader.conf

ansible/roles/cpu/tasks/linux_intel.yaml

@@ -25,3 +25,15 @@
   loop:
     - src: energy_performance_preference.conf
       dest: /etc/tmpfiles.d/energy_performance_preference.conf
+
+- name: Install scripts
+  when: hwpstate is defined and hwpstate
+  copy:
+    src: "files/{{ item.src }}"
+    dest: "{{ item.dest }}"
+    mode: 0755
+    owner: root
+    group: wheel
+  loop:
+    - src: cpu_set_perf_perc_linux
+      dest: /usr/local/bin/cpu_set_perf_perc