Ubuntu 8.04 scrolling and hardware

joeprogrammer · Post by **joeprogrammer** » 14. Jan 2009, 17:54

I have been using VB2.10 on Hardy on a 2core intel machine running Win2K guests and everything is great. This software solves many issues for developers. Unfortunately screen scrolling causes the CPU's to go ballistic to the point that hardy starts graying the screens. My question is will more cores solve this problem? I am willing to dish out the cash to get this to work but if VB doesn't scale across processors well it could money down the drain. Anyone with experience with 4 or 8 cores? Not A gamer so don't care about 3D, sound or playing music. Just need good 2D screen response.

Post by **Sasquatch** » 15. Jan 2009, 01:09

Did you already install the Guest Additions? Those have additional drivers for the video, giving it better performance.

joeprogrammer · Post by **joeprogrammer** » 15. Jan 2009, 01:25

Yes, everything looks fine, no problem except jerky scrolling and high CPU usage. This usually happens in an application where a table is being updated from an underlying database or scrolling a table that is attached to a database but it also affects scrolling a code page in Delphi where there is a lot of stuff going on that you don't see. For example, an Excel spread sheet works just fine.

Post by **Sasquatch** » 15. Jan 2009, 01:35

Then it would appear that the more difficult the screen is to build, the more CPU it takes to display it. I think that if you would take a word document, let it cache all the picture in it and scroll back and forth, it will take up a lot of CPU too.

joeprogrammer · Post by **joeprogrammer** » 15. Jan 2009, 01:43

This would seem to be the case. I can still benefit from the system to test installs but it would really be cool to have different VB for different programming environments since they sometimes fight each other. Too bad it makes my dual core machine act like a 386. Maybe later the team will get SMP working and I can fight it with hardware.
Thanks for your help.
Joe...