Thanks Adrian... I will look for all String manipulations... Can
you pls tell me how to tune SQL before going for java code... I hv done
only min work on SQL...
Will the Session and Entity bean abguity will cause any performance
issues... In some of the places I hv also used a Session beans in place
of an Entity bean for database connections... As for as my knowledge
there should not be any ambiguity like this right...
Rgds,
Ram...
CWLGLOBAL.
----- Original Message -----
From: "Adrian Janssen" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, June 18, 2003 4:54 PM
Subject: Re: Performance Tuning
> The best way is to use some kind of profiling tool, this will tell you
where
> most time is being wasted and help focus your efforts. I have not used any
> profiling tools with EJB's so I cannot recommend any.
>
> If you execute any SQL, tune that as best you can before touching java
code.
> Look to decrease first the amount of SQL calls you do, perhaps by
> refactoring your code, and only after that look to improve the speed of
> individual SQL calls.
>
> This can be done without a profiler by capturing a sample piece of SQL in
a
> debugger or a log file, (or even building the equivilant SQL by hand.).
>
> If you cannot get hold of a good profiler then do your own timing using
> System.currentTimeMillis() before and after each thing you want to time
and
> subtract the two - dump the result out to some kind of log. Start quite
high
> in the call stack and work your way down to the offending code. Fix it.
>
> Look for: lots of String manipulation - use StringBuffer, slow hashcode
> genaration of objects that are keys in hashmaps and hash sets.
>
>
> > -----Original Message-----
> > From: Ram [SMTP:[EMAIL PROTECTED]
> > Sent: 18 June 2003 01:12
> > To: [EMAIL PROTECTED]
> > Subject: Re: Performance Tuning
> >
> > I know making them execute faster is called performance tuning...
But,
> > How...
> >
> > Rgds,
> > Ram.
> > CWLGLOBAL...
> >
> > ----- Original Message -----
> > From: "Adrian Janssen" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Wednesday, June 18, 2003 4:19 PM
> > Subject: Re: Performance Tuning
> >
> >
> > > Make them execute faster.
> > >
> > > > -----Original Message-----
> > > > From: Ram [SMTP:[EMAIL PROTECTED]
> > > > Sent: 18 June 2003 12:48
> > > > To: [EMAIL PROTECTED]
> > > > Subject: Performance Tuning
> > > >
> > > > Hi,
> > > >
> > > > Can anybody tell me how to tune the performance (i.e.,
> > Processing
> > > > speed, connecting speed) of EJB's with JBoss application server.
So
> > > > that, the server should not hang in between.
> > > >
> > > > Rgds,
> > > > Ram
> > > > Software Engineer
> > > > CWLGLOBAL...
> > > >
> > > >
> >
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