Good answer, but 32 bit may be a reality for some folks.  I agree with
you regarding 64 bit.  Cloud instances are 64 bit.  My workstations
are 64 bit.  It's great.  I did some work with a bank awhile back ..
they had some *ahem* limitations for security reasons and had to use
32 bit on many of their systems.  They were also using *cough*
Internet Explorer 8.  They were happy to be upgrading to IE 9.

Interesting note: "likely includes memory that Java requires beyond
the Java heap size itself"

Can you expound on this?

On 1/4/19, Shawn Heisey <apa...@elyograg.org> wrote:
> On 1/3/2019 6:40 PM, ark...@tutanota.com wrote:
>> The strange part is I was able to set a max memory in the tomcat9w.exe
>> configuration tool to about 1600 Megabytes and that was the hitting of the
>> wall on that setup (the original physical one that I p2v'd to a VM), I can
>> set less ram, but I cannot set it more than 1600 otherwise when I try to
>> start the tomcat service in services.msc it will just crap outs.
>
> Tomcat itself is not 32 bit or 64 bit.  It is *Java* that determines this.
>
> If you have a 32-bit Java, then that Java cannot address more than 2GB
> of memory, and this likely includes memory that Java requires beyond the
> Java heap size itself.  This is a limitation that can only be overcome
> by running a 64-bit Java.  Naturally this requires a 64-bit operating
> system, which requires a 64-bit CPU.
>
> For the server side, readily available Intel processors have been all
> 64-bit since 2005.  For the client side, readily available Intel
> processors have been all 64-bit since 2006.  If you've purchased a
> computer in the last ten years, it is virtually guaranteed to have
> 64-bit hardware.
>
> I think it was either Java 9 or Java 10 where Oracle stopped making
> 32-bit versions easy to find.
>
> Run a 64-bit Java.  You won't have any memory limits.
>
> Thanks,
> Shawn
>
>
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