Hi, I'm writing a data processing program in D, which deals with large amounts of small objects. One of the thing I found is that D's GC is horribly slow in such situation. I tried my program with gc enable & disabled (with some manual deletes). The GC disabled version (2 min) is ~100 times faster than the GC enabled version (4 hours)!
But of course the GC disabled version still leak memory, it soon exceeds the machine memory limit when I try to process more data; while the GC enabled version don't have such problem. So my plan is to use the GC disabled version with manual deletes. But it was very hard to find all the memory leaks. I'm wondering: is there anyway to use GC as a leak detector? can the GC enabled version give me some help information on which objects get collected, so I can manually delete them in my GC disabled version? Thanks!
