Of course if you use gcj, the java front for gcc, you can compile your Java
code into real binary executables, not byte code. The code emiters and the
like are shared with the C or C++ bits of gcc, so essentially it is the
same as running C/C++. Obviously there are differences in the libraries,
but those should not be that significant.
David
Herve Bonvin
<[EMAIL PROTECTED] To: [EMAIL PROTECTED]
sscom.com> cc:
Sent by: Linux on Subject: AW: Java on zLinux for batch
processing
390 Port
<[EMAIL PROTECTED]
IST.EDU>
11/03/2003 14:16
Please respond to
Linux on 390 Port
C/C++ is also an option if java performances are really too bad.
Our online transactions run on Websphere/ejb/java, so java would be ideal
for our developers.
It is for a billing application which runs on z/OS at the moment.
Access/update will probably be with DB2 or file transfer.
We are preparing a performance test at the moment.
-----Ursprüngliche Nachricht-----
Von: McKown, John [mailto:[EMAIL PROTECTED]
Gesendet am: mardi, 11. mars 2003 13:06
An: [EMAIL PROTECTED]
Betreff: Re: Java on zLinux for batch processing
Why not use C/C++ instead of Java, if your programmers know it? It is
"native" and has better performance. Of course, performance is not
everything. Ease of coding and maintenance may make the decision for Java.
Just out of curiousity, what sort of processing do you plan to do? Will it
be for z/OS data? How will you access or update the information on the z/OS
side of the house? I've been thinking about this sort of thing as well.
-----Original Message-----
From: Herve Bonvin [mailto:[EMAIL PROTECTED]
Sent: Monday, March 10, 2003 11:46 PM
To: [EMAIL PROTECTED]
Subject: AW: Java on zLinux for batch processing
It is not a performance or ressource problem but a cost problem.
Our 4 CPU's are more or less sleeping during the night. This cpu ressource
is almost "free".
On the other hand, the price of running our batch applications (cobol) on
z/OS is very high and difficult to reduce.
Portability is also an important factor for us. Once the batch is running
on
z/OS, the migration to other plateforms is very difficult. If the batch is
running on linux, the choice for future migration is much better.
Best regards,
Herve Bonvin
