Comments on: Java Virtual Machine, An inside story!! http://viralpatel.net/blogs/2008/12/java-virtual-machine-an-inside-story.html Tutorials, Java, J2EE, Struts, AJAX, JavaScript, CSS, Web 2.0, MySQL, Articles Wed, 08 Feb 2012 10:36:26 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Ganeshhttp://viralpatel.net/blogs/2008/12/java-virtual-machine-an-inside-story.html/comment-page-1#comment-18696 Ganesh Fri, 16 Dec 2011 02:07:16 +0000 http://viralpatel.net/blogs/?p=521#comment-18696 Hi.... Java supports both compiler and interpreter...because of interpreter the program may be slow..(becse of line by line execution ).. JIT(Just in time compiler) is introduced for High performance.. Ex: print a;//This is statement is executed by interpreter given by the JVM..for ex..the exec and printing this result may take 2 nano sec print b;//This is statement is executed by interpreter given by the JVM..for ex..the exec and printing this result may take 2 nano sec Repeat the following statements i from 1 to 10(like for loop) print a; //This is statement is executed by interpreter given by the JVM..for ex..the exec and printing this result may take 2 nano sec here the problem is if the above statement is hanld by interpreter the time taken by the staments (10*2=20 nano sec) ***So this type of statements(repeatitve stmnts) given to the JIT comipiler by JVM...******here 2 nano sec processing and separate memory is created so another 2 nano sec for storing..overll 4 nano sec for print a value (if i=1).. if i=2 the jvm fetch the rslt frm stored memry(The value is already availble).. here the time taken by JIT compiler is 4 nano sec.... Hi….
Java supports both compiler and interpreter…because of interpreter the program may be slow..(becse of line by line execution ).. JIT(Just in time compiler) is introduced for High performance..
Ex:
print a;//This is statement is executed by interpreter given by the JVM..for ex..the exec and
printing this result may take 2 nano sec
print b;//This is statement is executed by interpreter given by the JVM..for ex..the exec and
printing this result may take 2 nano sec
Repeat the following statements i from 1 to 10(like for loop)
print a; //This is statement is executed by interpreter given by the JVM..for ex..the exec and
printing this result may take 2 nano sec
here the problem is if the above statement is hanld by interpreter the time taken by the staments (10*2=20 nano sec)
***So this type of statements(repeatitve stmnts) given to the JIT comipiler by JVM…******

here 2 nano sec processing and separate memory is created so another 2 nano sec for storing..overll 4 nano sec for print a value (if i=1)..
if i=2 the jvm fetch the rslt frm stored memry(The value is already availble)..
here the time taken by JIT compiler is 4 nano sec….

]]> By: sriramhttp://viralpatel.net/blogs/2008/12/java-virtual-machine-an-inside-story.html/comment-page-1#comment-15587 sriram Fri, 05 Aug 2011 12:22:50 +0000 http://viralpatel.net/blogs/?p=521#comment-15587 Hi iam a newbie to java,even im also having the same doubt,what abt JIT. and what is the name of the java compiler? Hi iam a newbie to java,even im also having the same doubt,what abt JIT.
and what is the name of the java compiler?

]]> By: vthttp://viralpatel.net/blogs/2008/12/java-virtual-machine-an-inside-story.html/comment-page-1#comment-14786 vt Sun, 22 May 2011 12:49:49 +0000 http://viralpatel.net/blogs/?p=521#comment-14786 I have a doubt...Java Virtual Machine (JVM) is interpreter But Just-in-time Compiler is the compiler.. Why both Interpreter and Compiler both are needed? What actions are done by JVM and what are done by JIT? I have a doubt…

Java Virtual Machine (JVM) is interpreter But Just-in-time Compiler is the compiler.. Why both Interpreter and Compiler both are needed?
What actions are done by JVM and what are done by JIT?

]]> By: mandeep panghalhttp://viralpatel.net/blogs/2008/12/java-virtual-machine-an-inside-story.html/comment-page-1#comment-14348 mandeep panghal Thu, 17 Mar 2011 01:57:05 +0000 http://viralpatel.net/blogs/?p=521#comment-14348 fantastic article.......................i haven't read such awesome article before this............quite remarkable............ fantastic article…………………..i haven’t read such awesome article before this…………quite remarkable…………

]]> By: Andyhttp://viralpatel.net/blogs/2008/12/java-virtual-machine-an-inside-story.html/comment-page-1#comment-13772 Andy Thu, 20 Jan 2011 16:37:55 +0000 http://viralpatel.net/blogs/?p=521#comment-13772 Awesome Article .. one of best articles i came across in explaining the complexity of JVM so neatly... Kudos and happy blogging Awesome Article .. one of best articles i came across in explaining the complexity of JVM so neatly… Kudos and happy blogging

]]> By: Satish Medoshttp://viralpatel.net/blogs/2008/12/java-virtual-machine-an-inside-story.html/comment-page-1#comment-13408 Satish Medos Fri, 19 Nov 2010 18:47:58 +0000 http://viralpatel.net/blogs/?p=521#comment-13408 I find these articles very interesting and crisp in the way explanation is done. Its good to get back to basics and appreciate the technology behind our coding :) which we hardly do in our daily routine /// I find these articles very interesting and crisp in the way explanation is done. Its good to get back to basics and appreciate the technology behind our coding :) which we hardly do in our daily routine ///

]]>