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 >> >> >>-- >>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]> >> >> >> > > >__________________________________________________ >Do You Yahoo!? >Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com > >-- >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]> > > > > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
