Sun wrestles with open-source Java

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Re: All current interperted languages.

Finally, it is important to remember that the speed of a program is more heavily dependent on the skills of the programmer than the actual language.

Actually, with Java there are a number of factors taht can make it appear slow.

(1) If you are running many applications/processes on a single core system, you are time slicing the cycles of the CPU. There is also the latency of the underlying OS, if this is run on a desktop, PDA or cell phone.

(2) Network latency can be a factor as to the performance of a given application (depending on what it is designed to do). If the application is doing many RPC calls or sends a lot of messages, it may appear to be slow. If one is using a 128K or 56K line (US analog is actually 9600 baud, 56K is really 53K via compression).

(3) The efficiency of the written code can play a factor. No compiler can fix crappy code!

(4) If you write an application on a 2GHz machine and then it is used on a 300 MHz PDA, it may appear to be slow. (Say you develop Java code on a P4 and it is run on a client device such as a PDA running a dragonball processor.)

(5) If there is a lot of network traffic, say due to chatty applications, many concurrent users or other QOS factors, the application may appear to be very slow.

(6) if the application is browser based (IE, Netscape, Opera, etc.), it still has to be sent across a network and the localhost may be busy duw to many other applications timeslicing.

Other factors may also exist that allow for the perception of latency in Java applications.

Posted by: B.O.F.H.   Posted on: 07/02/04 You are currently: a Guest | Members login | Terms of Use

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