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Date: Tue, 17 Feb 2009 21:33:01 -0800 (PST)
From: "deven you (JIRA)" <jira@apache.org>
To: commits@harmony.apache.org
Subject: [jira] Created: (HARMONY-6095) [classlib][luni] Performance
 improvement patch for java.text.DateFormatSymbols.DateFormatSymbols(Locale)
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[classlib][luni] Performance improvement patch for java.text.DateFormatSymbols.DateFormatSymbols(Locale)
--------------------------------------------------------------------------------------------------------

                 Key: HARMONY-6095
                 URL: https://issues.apache.org/jira/browse/HARMONY-6095
             Project: Harmony
          Issue Type: Improvement
          Components: Classlib
    Affects Versions: 5.0M8
            Reporter: deven you
         Attachments: hy-text.diff

this constructor spend much time on getZoneString(), howerver it is rarely used in real world application. so I just delay loading the ZoneStrings 
the testcase is :

import java.text.DateFormatSymbols;
import java.util.Locale;

public class TestDateFormatSymbols {
    public static void main(String[] args) {
        long time = System.currentTimeMillis();
        DateFormatSymbols dfs = new DateFormatSymbols(Locale.getDefault());
        time = System.currentTimeMillis() - time;
        
        System.out.println("the total time is " + time + " ms!");
    }

}

I have test on on Intel(R) Core(TM)2 Duo Cpu 2.4GHZ, 2.98GB Memory machine, the result is as below:
Harmony patch before: 1125 ms
> Harmony patched: 78 ms

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