Hello Raul,
I am using Microsoft Windows 2000 Professional 5.00.2195 with ServicePack 4 and "Russian" locale.
I have Celeron 1200MHz machine with 512Mb RAM.
I have tried to run java with -server option using two different JREs but results were the same.
Here is the output of java -version for j2sdk 1.5.0: java version "1.5.0" Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64) Java HotSpot(TM) Client VM (build 1.5.0-b64, mixed mode)
Results with -client: 1.1: time spent 921 ms 1.2: time spent 27710 ms Results with -server: 1.1: time spent 2374 ms 1.2: time spent 26438 ms
Here is the output of java -version for j2sdk 1.4.2: java version "1.4.2_03" Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_03-b02) Java HotSpot(TM) Client VM (build 1.4.2_03-b02, mixed mode)
Results with -client: 1.1: time spent 901 ms 1.2: time spent 23014 ms Results with -server: 1.1: time spent 2013 ms 1.2: time spent 23014 ms
I will try to profile the library in my spare time and post the result.
Regards,
Egor Pervuninski
egor {dot} pervuninski {at} gmail {dot} comRaul Benito wrote:
Hi Egor,
First of all sorry for not answering your request sooner. Regarding your problem, it seems that the way we transform the stream to UTF8 in 1.2(the library do the conversion itself) is slower in your case to the way it was done 1.1(we use classes given by the SDK). This is weird because, I made a lot of test regarding it and was always faster doing in the library that letting the work for the API. I will investigate this a little more, but IŽll need more information regarding your runtime: What JRE are you using, in what OS, in what locale, and of course are you testing with JIT enable(i.e. are you using -server or -client).
Regards,
Raul http://r-bg.com
On Tue, 11 Jan 2005 18:38:40 +0500, Egor Pervuninski <[EMAIL PROTECTED]> wrote:
Hello,
Sure, here it is.
## Davanum Srinivas : Tue, 11 Jan 2005 08:28:24 -0500
DS> Can you please post your test.xml as well? thanks, dims
DS>
DS> On Tue, 11 Jan 2005 18:31:18 +0500, Egor Pervuninski
DS> <[EMAIL PROTECTED]> wrote:
Hello,
Recently I tried to upgrade my project to use new Apache XML Security 1.2 for Java and found that now the library does c14n much MUCH more slowly than it was with 1.1.
Here is a simple test:
import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory;
import org.apache.commons.lang.time.StopWatch; import org.apache.xml.security.c14n.Canonicalizer; import org.w3c.dom.Document; import org.xml.sax.InputSource;
public class Test { private final static int REPEAT = 1000;
private StopWatch timer = new StopWatch(); private Canonicalizer canon = Canonicalizer.getInstance(Canonicalizer.ALGO_ID_C14N_OMIT_COMMENTS); private Document document;
public Test(String file) throws Exception { DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); factory.setNamespaceAware(true); factory.setValidating(false); DocumentBuilder builder = factory.newDocumentBuilder(); document = builder.parse(new InputSource(file)); }
public void runTest() throws Exception { timer.start(); for (int i = 0; i < REPEAT; i++) { canon.canonicalizeSubtree(document); } timer.stop(); System.out.println("time spent " + String.valueOf(timer.getTime()) + " ms"); }
public static void main(String[] args) throws Exception { org.apache.xml.security.Init.init(); Test test = new Test(args[0]); test.runTest(); } }
Just drop commons-lang-2.0.jar, commons-logging.jar, xercesImpl.jar, xml-apis.jar and xmlsec.jarto the classpath and run java Test File.xml.
Version 1.1 output: time spent 952 ms Version 1.2 output: time spent 29172 ms
Where is the catch?
Regards, Egor Pervuninski egor {dot} pervuninski {at} gmail {dot} com
DS> -- DS> Davanum Srinivas - http://webservices.apache.org/~dims/ DS>
Regards, Egor Pervuninski egor {dot} pervuninski {at} gmail {dot} com
