Measure mobiles processor speed

Question

Hello
I am trying to find out how i can measure mobile phones processor speed with help of J2ME. Is there any algorithm that can be used to measure the computational speed? Is there any way to measure Java's virtual machine speed? I found source code from www.tastephone.com where the author measures the processor speed, but i am nor really understand why he is doing like he does:
private int getMHz(int maxi)
1783 {
1784 int i= 2;
1785 long duration, start= System.currentTimeMillis();
1786 while (--maxi != 0)
1787 {
1788 if ((maxi & 1) == 0)
1789 i += 2;
1790 // if maxi is even, add 2 to i, we don't add if it's odd.
1791 }
1792 duration= System.currentTimeMillis() - start;
1793 int mhz= 0;
1794 if (duration != 0)
1795 {
1796 // mhz = number of CPU cycles for the loop : 6
1797 // * number of loops : i
1798 // / (number of cycles per second in 1MHz / number of ms in 1s / 100)
1799 // = 1000000 / 1000 /100
1800 // = 10 so we divide by 10
1801 // / duration in ms
1802 // so now mhz holds a value in MHz multiplied by 100 to have 2 decimal figures
1803 mhz= 6 * i / 10 / (int)duration;
1804 // rounding the decimal figure
1805 if ((mhz - (mhz / 10) * 10) >= 5)
1806 mhz= mhz + 10;
1807 mhz /= 10;
1808 // keeps one decimal figure instead of two
1809 // always return a non zero value (test successful)
1810 if (mhz == 0)
1811 mhz= 1;
1812 }
1813 return mhz;
1814 }
He wirtes at line 1796 that mhz = number of CPU cycles for the loop : 6
Why is number of CPU cycles for the loop 6? Where did he found that?
Thanks

Answer 1

He wirtes at line 1796 that mhz = number of CPU
cycles for the loop : 6
Why is number of CPU cycles for the loop 6? Where did
he found that?Well, I guess, he checked how many byte code instruction this loop takes. He forgets that this figure does not say anything about the amount of real CPU cycles it takes to make one loop. In consequence, the outcome of the computation is mosty setainly wrong.