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Re: FIX 4.4 coding in Java or c++? which is better?
Jason Chung <>
20 Jun 2008 12:57PM ET

Hello,

Thanks for responding.

I think I may off topic but this is interesting.

I am working on market data right now so I have to filter all these data to do some calculation.

as my manager is very c++ guys and would like to know the performance of java data structure and c++ data structure.

In this case, I need to use the new operator in c++ since there is million of data and the stack memory will overflow.

I was finding the time to insert all these data into map using either c++ or java. 30-40% of these data was duplicated. It seems to me java has faster running time. But, anyway, of course, it is CPU based too.

I need all these market data to read into memory to do some calculation.

I am using windows XP (Visual C++)

Back to FIX, i think C++ and java performance should be close enough.

Like you say, the CPU is fast enough in these day.

Most API in the market still written in C++. Definitely, C++ can do more thing than java.

I think for FIX, we just need the connection, we need to collect the fix message, send fix message for the basic.

I dont see many FIX Engine implemented in Java.... (am I wrong?)most FIX Engine especially their API is implemented in C++. I guess C++ still good and powerful...

Regards,
Jason

> I have not tested what like you did. I just use map so simple to map
> . In C++, you can define the map as _tags, and add in the map
> by _tags[11]="CliOrdID". If you want to retrive, then do value =
> _tags[11]. It is so quick. I just don't know what you try to tested.
>
> I don't use "new" mostly. If you forget to free them up, then there will
> be a memory leak. But you can be smarter. For example, I define one FIX
> object in whole FIX handler for Fix inbpund and outgoing message
> processing. There will no more space waste.
>
> I am think the OS is wrotten by C and C++. C++ is definitly much closer
> to the kernel level. You may compile the Java code, and get it optimazed
> at most lower level. Now a days, the CPU is much powerful. The
> application running fast or slow, all determined by the design. The
> language may not show much difference. I implemented Web based OMS by a
> separate module. My FIX engine FixExpress is a pure FIX session level
> support. I choose C++ is I think it will be a small, multi-thread, quick
> solution. I did not give a second thought.
>
>
>
> Good luck, peng
>
> FT Computer solutions http://www.eptop.com/FIX/FixExpress.htm

FIX 4.4 coding in Java or c++? which is better?
Jason Chung   27 May 2008 1:10PM ET

Re: FIX 4.4 coding in Java or c++? which is better?
Jason Chung   17 Jun 2008 8:56AM ET

Re: FIX 4.4 coding in Java or c++? which is better?
Alexandre Efremov / javasmith   17 Jun 2008 9:44AM ET

Re: FIX 4.4 coding in Java or c++? which is better?
Jason Chung   18 Jun 2008 8:54AM ET

Re: FIX 4.4 coding in Java or c++? which is better?
Changpeng Yu / FT Computer Solutions   18 Jun 2008 4:49PM ET

Re: FIX 4.4 coding in Java or c++? which is better?
Jason Chung   19 Jun 2008 9:26AM ET

Re: FIX 4.4 coding in Java or c++? which is better?
Changpeng Yu / FT Computer Solutions   19 Jun 2008 1:55PM ET

Re: FIX 4.4 coding in Java or c++? which is better?
Jason Chung   20 Jun 2008 12:57PM ET

Re: FIX 4.4 coding in Java or c++? which is better?
Greg Orsini / Cameron Systems   20 Jun 2008 3:32PM ET

Re: FIX 4.4 coding in Java or c++? which is better?
Serg Gulko   11 Sep 2008 1:24PM ET

Re: FIX 4.4 coding in Java or c++? which is better?
Changpeng Yu / FT Computer Solutions   19 Jun 2008 2:04PM ET