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how is 32 bit Java different from 64 bit Java?   Message List  
Reply | Forward Message #7293 of 7356 |
RE: [ajug] how is 32 bit Java different from 64 bit Java?

All I meant that I hadn’t actually used 64 bit windows in production, so talking about it shouldn’t have been taken as a recommendation.

 

I didn’t mean to start as a Windows vs Unix flamewar!

 

From: dtbullock@... [mailto:dtbullock@...] On Behalf Of David Bullock
Sent: Thursday, 28 May 2009 11:48 AM
To: Dennis Sosnoski
Cc: Nick Lothian; Alex Wei; ajug@yahoogroups.com
Subject: Re: [ajug] how is 32 bit Java different from 64 bit Java?

 

On Thu, May 28, 2009 at 3:56 AM, Dennis Sosnoski <dms@...> wrote:

David Bullock wrote:



Aw c'mon you windows-bashers, Vista 64-bit is at least 10 times more stable than 32-bit XP.  I have a Vista 64-bit development machine with a comfy 6GB of RAM, and have forgotten what memory paging is, or what reboots are for.

 

Wow, so 64-bit Vista no longer requires reboots every time you install something? Maybe Windows really is catching up with *nix.

 

For most applications, reboots are not actually needed.  For updates, it does reboot itself about once per month ,but that happens in the early hours of the morning when I'm not around.  I have once had to reboot in order to restore system stability.

 

I'm not saying it's better than Unix (that would be heretical, clearly), but I am saying it's not as bad as it used to be, especially with the 6GB of RAM.

 

Am pretty sure they're onto the whole 'must not reboot whole machine' thing with Windows 7.

 

cheers,

DB.

 



 - Dennis

 



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Thu May 28, 2009 3:03 am

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I am investigating running our app on 64 bit Java on a 64 bit O/S. A brief Google turns up not much, as I expected. After all, if I developed a virtual machine...
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May 27, 2009
5:30 am

On Wed, May 27, 2009 at 3:29 PM, John Farrell ... Idea: since the size of a memory reference doubles, that might increase the heap size required (and also...
David Bullock
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May 27, 2009
5:47 am

we been running an inhouse UDP Comms Server kind of app combined with a WSes (Axis 1.1) web-app and JSP/Struts web-app - all hosted within Tomcat 5.5 on JDK...
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May 27, 2009
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noticed a funny typo "to ruin Java" was meant to be "to run Java"...
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May 27, 2009
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I recall one vendor recommending 32bit JVM on 64bit operating system. The problem can be addition memory usage. Once memory usage increases this can cause...
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May 27, 2009
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... Yes, the FAIL bus is twice the width on 64bit compared to 32bit. If you have lots of small objects, they will tend to use twice as much real memory as they...
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May 27, 2009
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John Farrell
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May 28, 2009
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This probably won't apply to you. But when I run a Java app on 64 bit Java on a Vista 64 bit machine, more often than not, Hotspot VM crashes with a mysterious...
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May 28, 2009
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Thanks Alex. I estimate the probability of deploying an enterprise application on Vista at 0.0%. If there's anything that would ever make me give up computing,...
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May 28, 2009
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Nick Lothian
nick_a_l
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May 28, 2009
1:27 am

Aw c'mon you windows-bashers, Vista 64-bit is at least 10 times more stable than 32-bit XP. I have a Vista 64-bit development machine with a comfy 6GB of RAM,...
David Bullock
thunkmeister
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May 28, 2009
1:49 am

... Wow, so 64-bit Vista no longer requires reboots every time you install something? Maybe Windows really is catching up with *nix. - Dennis...
Dennis Sosnoski
d_sosnoski
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May 28, 2009
1:57 am

... For most applications, reboots are not actually needed. For updates, it does reboot itself about once per month ,but that happens in the early hours of...
David Bullock
thunkmeister
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May 28, 2009
2:19 am

All I meant that I hadn't actually used 64 bit windows in production, so talking about it shouldn't have been taken as a recommendation. I didn't mean to start...
Nick Lothian
nick_a_l
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May 28, 2009
3:04 am

I'm running Tomcat 5.5.23 in embedded mode, not as a Windows native service. But if I switch to use 32-Bit JVM, it works fine... # # An unexpected error has...
Alex Wei
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May 30, 2009
3:49 am
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