Performance problems in LiveCode

[DavidF.]

hi,

I'm trying to puzzle out some performance differences in LiveCode as I have it installed on different machines. The problem machine is my netbook, running Windows 8.1. Running LiveCode 8.1.8 on this, I get a real performance hit when I use the message box. CPU spikes to about 50% and typing in it is slow to the point of unusability. I get similar problems using the script editor. Just scrolling up and down in it takes CPU up to about 50% with corresponding sluggishness. Other than that, general use of the IDE is OK.

On my work laptop with Windows 7 there is no problem with the message box or editor, again running LC 8.1.8.

I wondered if it had something to do with the LC version. So I tried LC 7 on the netbook - and the problems vanished! No more CPU spike on using the message box or script editor, no more sluggishness. I could type something in the message box and no longer have to wait a minute or so for the text to appear.

Does anyone know what might be going on here? Is there a known problem with Windows 8? Was some new feature introduced in LC 8 that could have led to this slowdown?

I'm pretty sure the Project Browser also suffered from the same slowness when using LC 8 on my netbook. Certainly in LC 7 it seems much more responsive.

-- DavidF

[FourthWorld]

Performance issues specific to the Windows edition of the LiveCode engine are being worked on. It may be that some of these improvements can be seen in the latest build released this morning, v8.1.9:
http://downloads.livecode.com/livecode/

If you find the issues persisting, please submit a bug report, or add details of your recipe and system to a relevant existing report:
http://quality.livecode.com/

[DavidF.]

Thanks Richard. I'll try out 8.1.9 at some point and file a bug report if needed. LC 7 probably gives me all I need right now without performance issues so I'll stick with that meanwhile.

-- DavidF.