Re: Will RDi finally support 64 bit OS?

Joe Pluta skrev den 27-02-2008 15:14:

I have a dual core Intel chip and 2 Gb of RAM and my WSDCi takes in the order of minutes to cold start. Fortunately warm starting is much faster.

I would submit that you have other problems. If it takes minutes to start WDSC you've got real issues. I'm not going to reboot to check my cold start time, but it's 15 seconds at most. My warm boot time is three seconds.

I thought this over, and a reason might be the development of the shared code cache in the IBM JVM which apparently takes some effort (others have had problems with an invalidated cache) and is necessary after a reboot.

Our requirements are different. Production VM's should run on a production server but for testing and development nothing beats having everything with you. It also takes network issues out of the equation, which may be crucial when at other locations.

But you should never have more than one running, right? And aren't you just using the VM for testing? How much memory do your VMs use?

Why should I only have one running? One for a database and one for a web server? Plenty of reasons :)

I also have a Windows 2000 VM which I solely use for IBM VPL access.
VM's are getting to be a very powerful tool - the primary reason they are heavy is because the OS inside is heavy. Windows 2000 is great for this.

Anyway, this becomes a debate. I'm sure someone can come up with other reasons to require large amounts of memory, but using memory to make up for slow disk drives is a bad tradeoff. And in general, requiring more than 3GB on a workstation is a very exceptional case, in my opinion.

Well, things change. I personally would want a computer with as much memory as possible, even if it was bankswitched. The alternative is harddisks, and they are still slower.

But then again, Bill Gates said we'd never need more than 640K. <smile>

I believe that is an urban legend.