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  1.  Home
  2. JAVA400-L
  3. June 2009

Re: System i architecture vs. PC

Hate to say it, but "it depends". In Windows, if you uncheck Internet
Explorer's advanced setting "Reuse windows for launching shortcuts" and set
Explorer's option "Launch folder windows in a separate process", then each
Internet Explorer window (exclusive of tabs) will have its own JVM instance.
We do this on our clients to support broke (I mean, old) applications that
require an explicitly versioned old JVM (1.3.1).

Don't use Java on Linux so can't comment there.

--Loyd


On Tue, Jun 16, 2009 at 8:00 AM, Charles Wilt <charles.wilt@xxxxxxxxx>wrote:

Just curious if anybody has any information/links about the System i's
architecture vs. PCs with respect to Java and the JVM.

About the only things I (think) I know:
The native 64-bit JVM is built into the MI. While the newer 32-bit
JVM runs in PASE.
Also, each job on the System i has it's own JVM. (Does that still
apply with the 32-bit JVM in PASE). How does a PC (WIndows and/or
LINUX) compare? Is there one JVM, or per process?



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