Incremental garbage collection

[Guillaume Piolat]

On Saturday, 22 January 2022 at 13:03:26 UTC, Ola Fosheim Grøstad 
wrote:
>>
>> Wren use its own non-moving, non-incremental, precise, 
>> stop-the-world mark&sweep GC.
>
> But it only stops the wren-code, so it does not affect real 
> time properties of the main program?

No because (roughly speaking) UI callbacks are in event loops / 
timers separated from audio callbacks, and wren is called from 
these UI callbacks.

So you can take as much time as you want to process a click, or 
in WM_PAINT, it will never affect audio playback (well, it will 
if you spawn many demanding threads from there).

To support that windowing in desktop OSes separates invalidation 
from repaint.