[Issue 18005] AA leak

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18005

radu.racariu at gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |radu.racariu at gmail.com

--- Comment #4 from radu.racariu at gmail.com ---
don't think is the AA that does it, as the following exposes the same behavior:

+++++++++++++++++++++++++++++++++++++++

void main(string[] args)
{
    foreach (i; 0..300)
    {
        import core.memory;
        import std.stdio : writefln;

        writefln(`%g MB used, %g MB free`, GC.stats.usedSize / 1024f / 1024,
GC.stats.freeSize / 1024f / 1024);

        new bool[13 * 1024 * 1024]; // <- this collects differently on Windows

        GC.collect;
        GC.minimize;
    }
}

+++++++++++++++++++++++++++++++++++++++

Running it:

0.000137329 MB used, 0.999863 MB free
13.004 MB used, 7.49988 MB free
26.0079 MB used, 13.9999 MB free
39.0118 MB used, 20.4999 MB free
52.0157 MB used, 26.9999 MB free
65.0197 MB used, 33.4999 MB free
78.0236 MB used, 39.9999 MB free
78.0236 MB used, 42.496 MB free
91.0275 MB used, 51.4921 MB free
104.031 MB used, 63.4882 MB free
104.031 MB used, 66.4882 MB free
117.035 MB used, 53.4843 MB free
130.039 MB used, 68.4803 MB free
143.043 MB used, 55.4764 MB free
143.043 MB used, 86.4764 MB free
143.043 MB used, 55.4764 MB free
143.043 MB used, 86.4764 MB free
143.043 MB used, 55.4764 MB free
143.043 MB used, 86.4764 MB free
143.043 MB used, 55.4764 MB free
143.043 MB used, 86.4764 MB free
143.043 MB used, 55.4764 MB free
143.043 MB used, 86.4764 MB free
143.043 MB used, 55.4764 MB free
143.043 MB used, 86.4764 MB free
................................

It stabilizes at 143.043 MB

On Linux it collects eagerly and stabilizes around
13.0042 MB used, 7.49976 MB free

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