+
+if File.exist?("/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor") &&
+ File.read("/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor").chomp == "ondemand"
+ default[:sysfs][:cpufreq_ondemand][:comment] = "Tune the ondemand CPU frequency governor"
+ default[:sysfs][:cpufreq_ondemand][:parameters][:"devices/system/cpu/cpufreq/ondemand/up_threshold"] = "25"
+ default[:sysfs][:cpufreq_ondemand][:parameters][:"devices/system/cpu/cpufreq/ondemand/sampling_down_factor"] = "100"
+ default[:sysfs][:cpufreq_ondemand][:parameters][:"devices/system/cpu/cpufreq/ondemand/ignore_nice_load"] = "1"
+end
+
+energy_perf_bias = Dir.glob("/sys/devices/system/cpu/cpu*/power/energy_perf_bias")
+
+unless energy_perf_bias.empty?
+ default[:sysfs][:cpu_power_energy_perf_bias][:comment] = "Set CPU Energy-Performance Bias Preference to balance-performance"
+
+ energy_perf_bias.sort.each do |path|
+ default[:sysfs][:cpu_power_energy_perf_bias][:parameters][path.sub(%r{^/sys/}, "")] = "4"
+ end
+end