On Thursday, 5 April 2018 at 22:23:12 UTC, Steven Schveighoffer
wrote:
1. Compare to C malloc-ing 1.2MB at once (GC uses C malloc
underneath)
Yes after initialize malloc'ed 1.2Mb in C it consumes 1.6 Mb. 4.8
Mb => 4.9 Mb
2. Have you examined smaller numbers for total? Does it scale
linearly or is there a threshold? (my guess is the latter)
OK, if total = 1000 the last test shows 12916 Kbytes. It's fine.
Note that the GC does keep some metadata, but it's 1/32 the
size of the actual memory, so I'm not sure it's relevant here.
Is there an end goal for this exercise? That is, did you find a
problem and are trying to diagnose it by using this test? Maybe
if we know the real problem you are having, it can be explained
differently.
I just don't like that my game application takes too much memory.
I will think more.
