[Issue 19723] New: wrong time values in GC.profileStats

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19723

          Issue ID: 19723
           Summary: wrong time values in GC.profileStats
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P1
         Component: druntime
          Assignee: nobody at puremagic.com
          Reporter: kroeplin.d at googlemail.com

This simple test program runs for a few seconds but claims to have spent more
than 93 weeks doing GC:

import core.memory;
import std.stdio;

void main()
{
    writeln(GC.profileStats);
    scope (exit) writeln(GC.profileStats);

    string s;

    foreach (i; 0 .. 1_000_000)
        s ~= "garbage";
}

ProfileStats(0, 0 hnsecs, 0 hnsecs, 0 hnsecs, 0 hnsecs)
ProfileStats(3, 93 weeks, 6 days, 11 hours, 29 minutes, 42 secs, 914 ms, 306
μs, and 4 hnsecs, 93 weeks, 6 days, 11 hours, 29 minutes, 42 secs, 914 ms, 260
μs, and 8 hnsecs, 31 weeks, 2 days, 3 hours, 49 minutes, 54 secs, 337 ms, 385
μs, and 4 hnsecs, 31 weeks, 2 days, 3 hours, 49 minutes, 54 secs, 337 ms, 401
μs, and 1 hnsec)

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