How to Detect Android CPU Speed

How to detect android cpu speed?

The best way to do it in my opinion is to monitor the time it takes to do these actions. If it is taking too much time, then the system is too slow and you can disable fancy features until it is fast enough.

Reading the CPU speed or other specs and attempting to judge the system speed is a bad idea. Future hardware changes might make these specs meaningless.

Look at the Pentium 4 vs the Core 2 for example. Which is the faster CPU, a 2.4 GHz Pentium 4, or the 1.8 GHz Core 2? Is a 2 GHz Opteron faster than a 1.4 GHz Itanium 2? How are you going to know what kind of ARM CPU is actually faster?

To get system speed ratings for Windows Vista and 7 Microsoft actually benchmarks the machine. This is the only halfway accurate method to determine system capabilities.

It looks like a good method is to use SystemClock.uptimeMillis().

How to read cpu frequency on android device

To have frequency on Android, just read these special files in /sys directory:

#cat "/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq"
#cat "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq"
#cat "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq"

You will have current, min and max Frequency allowed.

How to get processor speed and RAM in android device

its only possible on a rooted device or your app is running as system application.

For wanted informations you have to look in the running kernel, as i know this informations
cant be obtained by the android system itself.

To obtain informations about the CPU, you can read and parse this file:
/proc/cpuinfo

To obtain memory informations, you can read and parse this file:
/proc/memory

How do I determine the max frequency of the processor (Android)

For me,this code works:

String cpuMaxFreq = "";
    RandomAccessFile reader = new RandomAccessFile("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq", "r");
    cpuMaxFreq = reader.readLine();
    reader.close();

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