On 2012-04-06 19:37, Rainer Schuetze wrote:

GC issues like this are currently blocking development of Visual D (a
Win32 project): when just adding spaces to a file, parsing the new file
every other second often needs 10 or more parsings until an equal amount
of memory is collected compared to the allocated memory. AFAICT Visual D
just keeps a reference to the root of the most recent AST of a source file.

What's even worse: when the allocated memory gets larger (say > 200MB),
the garbage collection itself takes more than a second stalling the
application, which is a real pain if it happens while you are typing
source text (it does happen quite often).

Can you pause the GC when the user is typing? When you're finished with the processing you can start it again.