[clue] 32 bit app, 64 bit OS

[dennisjperkins at comcast.net]

I thought that most distros (maybe excluding Slackware) would have their 64-bit versions set up to have both 32-bit and 64-bit libraries. 

----- Original Message -----
From: "David L. Willson" <DLWillson at TheGeek.NU> 
To: "CLUE's mailing list" <clue at cluedenver.org> 
Cc: nclug at nclug.org 
Sent: Friday, May 25, 2012 10:02:06 AM 
Subject: Re: [clue] 32 bit app, 64 bit OS 

Libraries are going to bite you. 

This is what I would do: 

Virtualize the whole box, and run it as a guest on the new hardware. You'll still get 85-90% of the performance you would have gotten with a full 64-bit stack. 

Then, if you want that last 10-15%, migrate your data to 64-bit applications on the host machine, one at a time. 

Enterprise's virtualization features are pretty sweet. 

-- 
David L. Willson 
Trainer, Engineer, Enthusiast 
RHCE Network+ A+ Linux+ LPIC-1 Ubuntu 
Mobile 720-333-LANS(5267) 

This is a good time for a r3VOLution. 

----- Original Message ----- 
> I am wondering the pitfalls of running 32 bit applications on 64 bit 
> Linux. 
> 
> We are looking at upgrading a large enterprise system. It would be 
> very helpful if we could upgrade the operating system first, because 
> then we can upgrade the application in place and carry over all of 
> our 
> settings and data more easily. The old version is a 32 bit 
> application, the new one is a 64 bit application. If we upgrade the 
> hardware and operating system first, this is better, since it is due 
> a 
> hardware upgrade anyway, and we are looking at maybe moving it to a 
> new data center. We would like to run this way for a while, then do 
> the upgrade, since it is a large project to upgrade this mess. Where 
> is this going to bite us? 
> 
> 
> 
> 
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