1 package jdk.nashorn.internal.runtime.regexp.joni.bench;

     2 

     3 import jdk.nashorn.internal.runtime.regexp.joni.Option;

     4 import jdk.nashorn.internal.runtime.regexp.joni.Regex;

     5 import jdk.nashorn.internal.runtime.regexp.joni.Syntax;

     6 

     7 public abstract class AbstractBench {

     8     protected void bench(String _reg, String _str, int warmup, int times) throws Exception {

     9         char[] reg = _reg.toCharArray();

    10         char[] str = _str.toCharArray();

    11 

    12         Regex p = new Regex(reg,0,reg.length,Option.DEFAULT,Syntax.DEFAULT);

    13 

    14         System.err.println("::: /" + _reg + "/ =~ \"" + _str + "\", " + warmup + " * " + times + " times");

    15 

    16         for(int j=0;j<warmup;j++) {

    17             long before = System.currentTimeMillis();

    18             for(int i = 0; i < times; i++) {

    19                 p.matcher(str, 0, str.length).search(0, str.length, Option.NONE);

    20             }

    21             long time = System.currentTimeMillis() - before;

    22             System.err.println(":  " + time + "ms");

    23         }

    24     }

    25 

    26     protected void benchBestOf(String _reg, String _str, int warmup, int times) throws Exception {

    27         char[] reg = _reg.toCharArray();

    28         char[] str = _str.toCharArray();

    29 

    30         Regex p = new Regex(reg,0,reg.length,Option.DEFAULT,Syntax.DEFAULT);

    31 

    32         System.err.println("::: /" + _reg + "/ =~ \"" + _str + "\", " + warmup + " * " + times + " times");

    33 

    34         long best = Long.MAX_VALUE;

    35 

    36         for(int j=0;j<warmup;j++) {

    37             long before = System.currentTimeMillis();

    38             for(int i = 0; i < times; i++) {

    39                 p.matcher(str, 0, str.length).search(0, str.length, Option.NONE);

    40             }

    41             long time = System.currentTimeMillis() - before;

    42             if(time < best) {

    43                 best = time;

    44             }

    45             System.err.print(".");

    46         }

    47         System.err.println(":  " + best + "ms");

    48     }

    49 }