Yeah, I don't believe javac will benefit from multiple processors. However, you can still take advantage of multiple processors, maybe, if you can split up your compilation into two or more independent, parallel compiles.
For example I've organized my code on a J2EE project into three groups: code for the web application, code for the EJBs, and code used by both (common). Once the common code is compiled, the web app and EJBs can both be compiled, but neither of the two depends on the other. So, you can use Ant's "parallel" tag to make the web app and EJB compilation targets run in parallel, which will use two processors. The Ant output gets mixed up, but it's not a big deal. Also, installing and using the jikes Java compiler will speed up your compilation significantly. Sean On Tuesday, January 29, 2002, at 04:39 AM, Thorbjørn Ravn Andersen wrote: > > tirsdag januar 29 2002 kl. 02:53 AM skrev Antony Stace: > >> I have a Struts project with a number of files and want to >> compile the source files quicker. >> Does anyone know if the java compilers and runtime >> environments included with Suns JDK 1.3 and 1.4 systems >> take advantage of a multiprocessor linux system(Assume a >> fairly recent stable kernel) or will they use(in a 2 processor >> system) just one processor. I want to speed up compile times >> but am not sure if a multiprocessor system will do it. > > If you use a JVM with native threads then the operative system > manages the individual threads, and may schedule them on > different processors (if you use green threads, then the JVM > does the thread managing itself in a single process, which will > therefore use one processor only). > > As far as I know, javac is single-threaded, so that you will > not benefit in doing a single compile. If you can initiate > several javac-processes at the same time, you will benefit. > > You may also want to look into whether your web container > provides for a command-line batch compiler for jsp-pages. > For code, you may need a suitable IDE, but I do not have any > suggestions. > > -- > Thorbjørn Ravn Andersen > Scandiatransplant, c/o Christian Mondrup > 89 49 53 01 > http://biobase.dk/~tra > > > -- > To unsubscribe, e-mail: <mailto:struts-user- > [EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:struts-user- > [EMAIL PROTECTED]> > _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
