Changelog

To change the mode in zen-iosched
echo gaming > /sys/block/<devices>/queue/iosched/mode # Gaming
echo balance > /sys/block/<devices>/queue/iosched/mode # Balanced
echo powersave > /sys/block/<devices>/queue/iosched/mode # PowerSave

Gaming Mode zen-iosched:
echo gaming > /sys/block/mmcblk0/queue/iosched/mode
echo gaming > /sys/block/sda/queue/iosched/mode
echo gaming > /sys/block/sdb/queue/iosched/mode
echo gaming > /sys/block/sdc/queue/iosched/mode
echo gaming > /sys/block/sdd/queue/iosched/mode
echo gaming > /sys/block/sde/queue/iosched/mode
echo gaming > /sys/block/sdf/queue/iosched/mode

Balanced Mode zen-iosched:
echo balance > /sys/block/mmcblk0/queue/iosched/mode
echo balance > /sys/block/sda/queue/iosched/mode
echo balance > /sys/block/sdb/queue/iosched/mode
echo balance > /sys/block/sdc/queue/iosched/mode
echo balance > /sys/block/sdd/queue/iosched/mode
echo balance > /sys/block/sde/queue/iosched/mode
echo balance > /sys/block/sdf/queue/iosched/mode

Powersave Mode zen-iosched:
echo powersave > /sys/block/mmcblk0/queue/iosched/mode
echo powersave > /sys/block/sda/queue/iosched/mode
echo powersave > /sys/block/sdb/queue/iosched/mode
echo powersave > /sys/block/sdc/queue/iosched/mode
echo powersave > /sys/block/sdd/queue/iosched/mode
echo powersave > /sys/block/sde/queue/iosched/mode
echo powersave > /sys/block/sdf/queue/iosched/mode

To Change the mode in cpufreq_schedhorizon
/sys/devices/system/cpu/cpufreq/policy*/schedhorizon/game_mode
To turn off schedhorizon:
echo 0 > /sys/devices/system/cpu/cpufreq/policy0/schedhorizon/game_mode
To activate schedhorizon:
echo 1 > /sys/devices/system/cpu/cpufreq/policy0/schedhorizon/game_mode