Intuitively, this should prevent the operating system from scaling down the frequency and hold consistently at. Will have the effect of setting the performance governor instead of the ondemand governor for all CPU cores (4, for the RPi4) and then adjust the minimum and maximum frequencies to the default maximum frequency supported by the RPi4. # performance governor and smoothen out lag spikes for i in 0 1 2 3 do echo "performance" > /sys /devices /system /cpu /cpu $i /cpufreq /scaling_governorĮcho "1500000" > /sys /devices /system /cpu /cpu $i /cpufreq /scaling_max_freqĮcho "1500000" > /sys /devices /system /cpu /cpu $i /cpufreq /scaling_min_freq One solution to avoid lag spikes, is to switch to the performance governor and then set the same minimum and maximum frequencies for the CPU. In a situation where high reaction speed is required, it does not really matter how fast the CPU is capable to go as much as having a consistent overall experience without sudden drops in performance.
LAKKA RASPBERRY PI 3 CONTROLLERS FULL
Imagine, having to take an U-turn in a racing game and in case the CPU is suddenly downclocked to instead of running at full speed, a short delay might be experienced thereby making the player run off track. Whenever the governor scales the frequency down and then back up, a short lag spike is introduced that will affect the gameplay. Now, imagine playing game that requires a good reaction speed and a consistent gameplay such as a racing game. That show how the governor dynamically scales frequencies. Using bcmstat the current machine metrics can be monitored. Furthermore, whilst gaming, in case the CPU clock frequency changes, various lag spikes are introduced that might not provide a smooth gaming experience. However, Lakka is a dedicated gaming OS such that allowing the OS to change the CPU frequency does not make much sense. For a regular desktop, the ondemand governor makes sense because the OS might want to downclock the CPU in order to save power depending on the applications that are currently running. At the current time of running Lakka ships with the ondemand governor enabled that is meant to mange the CPU speed depending on the machine workload.
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