Is there any way to check if an Android device is dual core? (Other than Runtime.availableProcessors() as it only reports the correct number occasionally.)
I need it as SoundPool doesn't work on dual cores (see http://code.google.com/p/android/issues/detail?id=17623)
try some thing like this:
float ALOUD_MISTAKE = 20; // percent
int WORK_TIME = 1000; // milliseconds
public int work(){
int workCounter = 0;
long startTime = System. currentTime();
long currentTime = System. currentTime();
while(startTime < currentTime + WORK_TIME){
currentTime = System. currentTime();
workCounter++;
}
return workCounter;
}
start mainThread1;
check the work time and save it(keep it going)
now start new thread
new Thread(new Runnable(){
void run(){
while(true){
work();
}
}
}).start();
let them run a bit and now check:
if(Math.abs(workTimeThread1 - savedWorkTimeThread1) / workTimeThread1 * 100 > ALOUD_MISTAKE)
{
you got (number of new threads been started - 1) cores
}
check this answer here https://stackoverflow.com/a/4875506/737925
private String ReadCPUinfo()
{
ProcessBuilder cmd;
String result="";
try{
String[] args = {"/system/bin/cat", "/proc/cpuinfo"};
cmd = new ProcessBuilder(args);
Process process = cmd.start();
InputStream in = process.getInputStream();
byte[] re = new byte[1024];
while(in.read(re) != -1){
System.out.println(new String(re));
result = result + new String(re);
}
in.close();
} catch(IOException ex){
ex.printStackTrace();
}
return result;
}
}`
I think that Runtime.availableProcessors() is the way to do it. The documentation says:
Returns the number of processors available to the virtual machine [...] at least 1.
I think that the result of this function returns the number of logical cores (not physical).
But this does not solve your problem: The Bug-report states that the bug occurs only on Samsung Galaxy S2 and I think that it will be fixed sometime in future.
