Poll: How many users on your apps and what hardware are you using?

I am curious about the collective experience and performance of others APEX applications and how much "horsepower" your hardware has.
I have a need to support 20-30 users and am using a Windows XP machine with 1.99 Gig of RAM and a 2.8 GHz Pentium 4 CPU.
Any thoughts on this?

For my personal use, I'm renting a Celeron 2.4ghz with 1Gig RAM running CentOS, Oracle XE and Apex 3.2 at a data center 1200 miles away. Seems to work fine. I find the biggest issue is network bandwidth. I originally had a 10Mb link to the datacenter's backbone, now have a 100Mbit. The difference was night and day.
For work (speaking only of our Apex servers), we've got:
One Dell 2way P4 with 4G RAM and 10,000 RPM drives.
It runs 2 10G instances and several Apex apps and it also runs Enterprise Manager Grid Control for 40+ databases. No issues.
Multiple prod/dev/test servers.
All are VIRTUAL running on VMWare ESX3.5. Each database VM has 2 gig of RAM and 2 "CPUs" running 11g/Apex3.2 on Oracle Linux. They all work fine.
I find that a poorly written app can crush just about any hardware you can throw at it. Luckily we don't have any of those ;).
I suspect that your hardware would be fine, particularly if running Linux. I cannot speak to Oracle/Apex on XP. I suspect you might be disappointed, mostly because it is tuned for interactive use rather than background applications (services). Not trying to be a Windows vs Linux troll here, just saying that if you are running a workstation with Oracle/Apex and you on it and expect to support 20-30 other people, you are all likely to be disappointed. Apex/Oracle should be on dedicated server hardware with a server OS.
You also aren't giving us much info on your hardware; 7200RPM IDE/SATA drives aren't going to be as fast as 15KRPM SCSI or SAS, etc.
It wouldn't surprise me if your well written application was able to support 20-30 users with the hardware you are describing (though I won't vouch for the OS).
Google for "apex.oracle.com" and "poweredge 1950" that will take you to this link:
http://joelkallman.blogspot.com/2009/06/who-says-application-express-cant-scale.html
The whole thing apparently serves up 6 million page hits a week with a 1.5Gig SGA. That's a lot of work on a pretty small box.

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~~~~~~~~~~~~~~~
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Poll: How many users on your apps and what hardware are you using?

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