- Download and install Milestone Overclock (this is just so you can grab the kernel module).
- Find overclock.ko from the milestone directory and move/copy it over to /system/lib/modules. You can optionally uninstall Milestone Overclock now - you no longer need it.
- Run the following script (be sure to substitute A, B, C, D with your own vsels, and W, X, Y, Z with your own frequencies).
#!/system/bin/sh
insmod /system/lib/modules/overclock.ko
echo 0xc05a8dcc > /proc/overclock/mpu_opps_addr
echo 0xc0048a00 > /proc/overclock/omap2_clk_init_cpufreq_table_addr
echo 0xc059b258 > /proc/overclock/cpufreq_stats_table_addr
echo 0xc02d1104 > /proc/overclock/cpufreq_stats_update_addr
echo D > /proc/overclock/max_vsel
echo Z00000 > /proc/overclock/max_rate
echo 1 W00000000 A > /proc/overclock/mpu_opps
echo 2 X00000000 B > /proc/overclock/mpu_opps
echo 3 Y00000000 C > /proc/overclock/mpu_opps
echo 4 Z00000000 D > /proc/overclock/mpu_opps
echo 0 Z00000 > /proc/overclock/freq_table
echo 1 Y00000 > /proc/overclock/freq_table
echo 2 X00000 > /proc/overclock/freq_table
echo 3 W00000 > /proc/overclock/freq_table
If you want the new settings to stick at boot, you'd want to put the script in /etc/init.d somewhere. You can name it 99overclock or something like that.
As for how you can determine the best frequencies and vsels, you'll have to experiment. If you're lazy, I recommend using something like Quickclock - the developer, Paul, is an awesome guy. :)
Finally, here's a nice trick. The numbers in the following file will tell you your usage pattern per frequency:
/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_stateHere's an example:
bash-3.2# cat /sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_stateYou will notice that your phone spends most of the time at the lowest clock frequency and rarely will it use the middle ones. Interesting, but expected.
1200000 1424737
900000 87456
600000 182945
300000 4688410
What exactly does this section of code do,
ReplyDeleteecho 0xc05a8dcc > /proc/overclock/mpu_opps_addr
echo 0xc0048a00 > /proc/overclock/omap2_clk_init_cpufreq_table_addr
echo 0xc059b258 > /proc/overclock/cpufreq_stats_table_addr
echo 0xc02d1104 > /proc/overclock/cpufreq_stats_update_addr
My phone won't overclock with it in there but will without that particularly line of code, i'm confused
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