On Monday, 15 December 2014 at 11:54:44 UTC, Daniel Murphy wrote:
"Stephan Schiffels" wrote in message
news:wjeozpnitvhtxrkhu...@forum.dlang.org...
I see several ways how to improve my code:
1.) Is there a way to tell the GC the maximum heap size
allowed before it initiates a collection cycle? Cranking that
up would cause fewer collection cycles and hence spend more
time in my multithreaded code?
Yes, sort of. You can use
http://dlang.org/phobos/core_memory.html#.GC.reserve to have
the GC grab a big chunk of memory, and collections won't run
until that is exhausted. As it is only allocating virtual
memory, it should be more or less equivalent to setting the max
heap size.
This doesn't work for me, for some reason. I reserve via
GC.reserve(4_000_000_000), ensured that it does return at least
that amount, but the Garbage collector will still collect like
crazy, long before that reserved memory is exhausted...
