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README@a604f59fea28

README

Wed, 10 Aug 2016 15:46:08 +0800

author

fujie

date

Wed, 10 Aug 2016 15:46:08 +0800

changeset 57

a604f59fea28

parent 0

f90c822e73f8

permissions

-rw-r--r--

Performance of long integer division is 100% up.

public class Test {

public static void main(String[] args) {
long LEN = 650000000;
long result = 0;

for(long j = 1; j < 20; j++) {
result = 0;
for(long i = 1; i < LEN; i++){
result += i / (j + 1);
}
}

System.out.println("result = " + result);
}
}

 README:

   This file should be located at the top of the hotspot Mercurial repository.

   See http://openjdk.java.net/ for more information about the OpenJDK.

   See ../README-builds.html for complete details on build machine requirements.

 Simple Build Instructions:

     cd make && gnumake

   The files that will be imported into the jdk build will be in the "build"

   directory.