Re: Tomcat Performance is good!

2002-06-14 Thread Ben Walding 

It might be worth looking at Jakarta Lucence 
(http://jakarta.apache.org/lucene)

Full text search engine - no point reinventing the wheel

(I've never used it, just about to start for my new ultra-secret project).

Trenton D. Adams wrote:

>Yep, perl is better for big text searches as far as the programmer is concerned, but 
>it's not really all that fast.  After all, regular expressions are literally 
>integrated right into the language.  No function calls.  Much easier to work with.
>
>
>I think it's primarily due to the precompiled nature of java BYTE-CODE.  It's easier 
>to translate byte values to other byte values for native machine instruction than it 
>is for translating straight text such as perl to native machine instructions.
>
>Nope, no database backend.  I used a plain text file.  It has one verse per line.  
>Example below.
>Genesis;01;001;001; In the beginning God created the heaven and the earth.
>
>I am thinking of switching to a database backend though.
>
>I'm using the regular expression package with JDK1.4.0.  Then I have a split routine 
>that I made myself for splitting up the book;booknum;chapter;verse;versetext into 
>their separate parts.  The new String.split () isn't fast enough because it's got the 
>overhead of all possible regular expressions.  In fact, I reduced a search from like 
>1300ms to less than 800ms by switching to my new split.  The reason it's a big 
>improvement is because it's in a loop.  I could do extra programming to work around 
>the fact that it has to be in a loop every time, but I figured it's not worth it.
>
>It's mostly JSP for the HTML part, then I have a bibleSearch method with a simple 
>bean.
>
>
>
>Who knows, maybe it's not actually faster!  Maybe יהוה has made it faster without 
>my knowledge.  LOL
>
>-Original Message-
>From: August Detlefsen [mailto:[EMAIL PROTECTED]] 
>Sent: June 14, 2002 5:30 PM
>To: Tomcat Users List
>Subject: RE: Tomcat Performance is good!
>
>
>That is interesting. I always thought perl was better for big text searches...
>
>Did you give it a database backend? 
>What API are you using for the search? 
>Or is your performance improvement strictly due to the precompiled always-on nature 
>of servlets (as opposed to interpreted perl)?
>
>-August
>
>--- Sébastien_Dui <[EMAIL PROTECTED]> wrote:
>  
>
>>Let's hope that it will also work for applications without acts of 
>>god...
>>
>>
>>
>>-Message d'origine-
>>De : Trenton D. Adams [mailto:[EMAIL PROTECTED]]
>>Envoyé : sam. 15 juin 2002 0:06
>>À : 'Tomcat Users List'
>>Objet : Tomcat Performance is good!
>>
>>
>>I've recently been doing some fiddling with Tomcat.  I've built a King
>>James Bible search program.  I based it off of my brother's perl
>>bible
>>search program.  It outputs all identical HTML to the perl version. 
>>It
>>was already out performing it by a couple of seconds on one
>>particular
>>search.  The search for perl took about 6 seconds and the search in
>>the
>>J2EE version on tomcat took approx 4 seconds.  With some code
>>efficiency
>>improvements, I've gotten that down to less than 3 seconds.
>>
>>Just thought you might all like to hear some good news about Tomcat.
>>
>>
>>Tomcat 4.0.3
>>Apache 1.3.20
>>Perl 5.6.0
>>
>>
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>>
>
>
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RE: Tomcat Performance is good!

2002-06-14 Thread Trenton D. Adams 

Yep, perl is better for big text searches as far as the programmer is concerned, but 
it's not really all that fast.  After all, regular expressions are literally 
integrated right into the language.  No function calls.  Much easier to work with.


I think it's primarily due to the precompiled nature of java BYTE-CODE.  It's easier 
to translate byte values to other byte values for native machine instruction than it 
is for translating straight text such as perl to native machine instructions.

Nope, no database backend.  I used a plain text file.  It has one verse per line.  
Example below.
Genesis;01;001;001; In the beginning God created the heaven and the earth.

I am thinking of switching to a database backend though.

I'm using the regular expression package with JDK1.4.0.  Then I have a split routine 
that I made myself for splitting up the book;booknum;chapter;verse;versetext into 
their separate parts.  The new String.split () isn't fast enough because it's got the 
overhead of all possible regular expressions.  In fact, I reduced a search from like 
1300ms to less than 800ms by switching to my new split.  The reason it's a big 
improvement is because it's in a loop.  I could do extra programming to work around 
the fact that it has to be in a loop every time, but I figured it's not worth it.

It's mostly JSP for the HTML part, then I have a bibleSearch method with a simple bean.



Who knows, maybe it's not actually faster!  Maybe יהוה has made it faster without 
my knowledge.  LOL

-Original Message-
From: August Detlefsen [mailto:[EMAIL PROTECTED]] 
Sent: June 14, 2002 5:30 PM
To: Tomcat Users List
Subject: RE: Tomcat Performance is good!


That is interesting. I always thought perl was better for big text searches...

Did you give it a database backend? 
What API are you using for the search? 
Or is your performance improvement strictly due to the precompiled always-on nature of 
servlets (as opposed to interpreted perl)?

-August

--- Sébastien_Dui <[EMAIL PROTECTED]> wrote:
> Let's hope that it will also work for applications without acts of 
> god...
> 
> 
> 
> -Message d'origine-
> De : Trenton D. Adams [mailto:[EMAIL PROTECTED]]
> Envoyé : sam. 15 juin 2002 0:06
> À : 'Tomcat Users List'
> Objet : Tomcat Performance is good!
> 
> 
> I've recently been doing some fiddling with Tomcat.  I've built a King
> James Bible search program.  I based it off of my brother's perl
> bible
> search program.  It outputs all identical HTML to the perl version. 
> It
> was already out performing it by a couple of seconds on one
> particular
> search.  The search for perl took about 6 seconds and the search in
> the
> J2EE version on tomcat took approx 4 seconds.  With some code
> efficiency
> improvements, I've gotten that down to less than 3 seconds.
> 
> Just thought you might all like to hear some good news about Tomcat.
> 
> 
> Tomcat 4.0.3
> Apache 1.3.20
> Perl 5.6.0
> 
> 
> --
> To unsubscribe, e-mail: 
> <mailto:[EMAIL PROTECTED]>
> For additional commands, e-mail: 
> <mailto:[EMAIL PROTECTED]>
> 
> --
> To unsubscribe, e-mail:
> <mailto:[EMAIL PROTECTED]>
> For additional commands, e-mail:
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> 


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Re: Tomcat Performance is good!

2002-06-14 Thread otisg 

Of course, the bottleneck here would be the full-text search application
(its algorithm and implementation) and not Tomcat vs.vanilla CGI (I'm
assuming that Perl search stuff is a regular Perl CGI).

Otis



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> 
> From: Trenton D. Adams
> Sent: 6/14/2002 7:08:53 PM
> To: [EMAIL PROTECTED]
> Subject: Tomcat Performance is good!
> 
> I've recently been doing some fiddling with Tomcat. I've built a King
> James Bible search program. I based it off of my brother's perl bible
> search program. It outputs all identical HTML to the perl version. It
> was already out performing it by a couple of seconds on one particular
> search. The search for perl took about 6 seconds and the search in the
> J2EE version on tomcat took approx 4 seconds. With some code
efficiency
> improvements, I've gotten that down to less than 3 seconds.
> 
> Just thought you might all like to hear some good news about Tomcat.
> 
> 
> Tomcat 4.0.3
> Apache 1.3.20
> Perl 5.6.0
> 
> 
> --
> To unsubscribe, e-mail: 
> For additional commands, e-mail: 
> 
>

RE: Tomcat Performance is good!

2002-06-14 Thread August Detlefsen 

That is interesting. I always thought perl was better for big text
searches...

Did you give it a database backend? 
What API are you using for the search? 
Or is your performance improvement strictly due to the precompiled
always-on nature of servlets (as opposed to interpreted perl)?

-August

--- Sébastien_Dui <[EMAIL PROTECTED]> wrote:
> Let's hope that it will also work for applications without acts of
> god... 
> 
> 
> 
> -Message d'origine-
> De : Trenton D. Adams [mailto:[EMAIL PROTECTED]]
> Envoyé : sam. 15 juin 2002 0:06
> À : 'Tomcat Users List'
> Objet : Tomcat Performance is good!
> 
> 
> I've recently been doing some fiddling with Tomcat.  I've built a
> King
> James Bible search program.  I based it off of my brother's perl
> bible
> search program.  It outputs all identical HTML to the perl version. 
> It
> was already out performing it by a couple of seconds on one
> particular
> search.  The search for perl took about 6 seconds and the search in
> the
> J2EE version on tomcat took approx 4 seconds.  With some code
> efficiency
> improvements, I've gotten that down to less than 3 seconds.
> 
> Just thought you might all like to hear some good news about Tomcat.
> 
> 
> Tomcat 4.0.3
> Apache 1.3.20
> Perl 5.6.0
> 
> 
> --
> To unsubscribe, e-mail:
> <mailto:[EMAIL PROTECTED]>
> For additional commands, e-mail:
> <mailto:[EMAIL PROTECTED]>
> 
> --
> To unsubscribe, e-mail:  
> <mailto:[EMAIL PROTECTED]>
> For additional commands, e-mail:
> <mailto:[EMAIL PROTECTED]>
> 


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RE: Tomcat Performance is good!

2002-06-14 Thread Sébastien Dui 

Let's hope that it will also work for applications without acts of god... 



-Message d'origine-
De : Trenton D. Adams [mailto:[EMAIL PROTECTED]]
Envoyé : sam. 15 juin 2002 0:06
À : 'Tomcat Users List'
Objet : Tomcat Performance is good!


I've recently been doing some fiddling with Tomcat.  I've built a King
James Bible search program.  I based it off of my brother's perl bible
search program.  It outputs all identical HTML to the perl version.  It
was already out performing it by a couple of seconds on one particular
search.  The search for perl took about 6 seconds and the search in the
J2EE version on tomcat took approx 4 seconds.  With some code efficiency
improvements, I've gotten that down to less than 3 seconds.

Just thought you might all like to hear some good news about Tomcat.


Tomcat 4.0.3
Apache 1.3.20
Perl 5.6.0


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Tomcat Performance is good!

2002-06-14 Thread Trenton D. Adams 

I've recently been doing some fiddling with Tomcat.  I've built a King
James Bible search program.  I based it off of my brother's perl bible
search program.  It outputs all identical HTML to the perl version.  It
was already out performing it by a couple of seconds on one particular
search.  The search for perl took about 6 seconds and the search in the
J2EE version on tomcat took approx 4 seconds.  With some code efficiency
improvements, I've gotten that down to less than 3 seconds.

Just thought you might all like to hear some good news about Tomcat.


Tomcat 4.0.3
Apache 1.3.20
Perl 5.6.0


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