Periodic 'freeze' problem on HP laptop

[marco75]

I'm running latest version of GZDoom (1.1.4.110) on HP Pavilion Entertainment PC. (Vista Home Ultimate)

During play, it will stop rendering frames (displays static image) for about half a second, then suddenly catch up to what's happening in the game world. During this the HDD will make a few clicks, but no grinding.

I have tried closing all other apps and the sidebar. I'm not running Search Indexing service.

I thought perhaps if I allocated more memory to the game with a command line switch like -heapsize 128, it might help, but I checked the ZDoom wiki and cannot find such a switch.

Any suggestions would be appreciated.

[marco75]

Setting Properties > Compatibility > Windows XP Service Pack 2 fixes this problem.

[Graf Zahl]

This is a classic indicator of a background process interfering with the operation of your system.

Regarding the heap size, ZDoom doesn't pre-allocate a heap like many other ports. It uses the system heap directly so there's no need to specify a value. You can theoretically use all the system's free memory if you load large enough resources.