Hi, i try to fix CPU frequency as maximum in Nexus 5. Two days ago, i succeeded in turning on all cores and making their frequencies maximum. However, it suddenly does not work :(
How did i turn on all cores and making their frequecies max? By writing init scripts (rc script) in android_platform/devices/lge/hammerhead/init.hammerhead.rc. My init scripts echoing /sys/devices/system/cpu/cpu#/online and /sys/devices/system/cpu/cpu#/cpufreq/scaling_max/min_freq. Moreover, i turn off mpdecision daemon. I tried to check out whether the echoing deliver the requests to kernel code by inserting printk() into store_online() of kernel_source/drivers/base/cpu.c It was working two days ago, but now it does not work .. I saw coincidentally a adb logcat message: E/ThermalEngine( 188): Unable to read max frequency from online cpu. E/ThermalEngine( 188): Failed to set desired CPU[1] frequency limit to 2265600 It seems "ThermalEngine" blocks the echoing. So my questions are: 1. Is my analogy correct? 2. How can I turn off "ThermalEngine"? and will it have no critical impact on the system? (for example, what if it destroys my phone?!) 3. As I understood, there might be other system daemons which have impact on cpu freq or cpu on/off. If i guess it correctly, how can i control them? -- -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel --- You received this message because you are subscribed to the Google Groups "Android Linux Kernel Development" group. To unsubscribe from this group and stop receiving emails from it, send an email to android-kernel+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
