Pappas-PerfTest1

Results from running PerfComparison (https://github.com/jack-pappas/fs-core-optimized)
Random set density parameter: 0.560639
RNG seed: 600139859
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Warming up...done.

Create Random Set<int> (n=1000000)
FSharp.Core (Original)  : 3477.824800 (ms)
FSharp.Core (Optimized) : 2561.988700 (ms)
ExtCore (Patricia Trie) : 2253.720800 (ms)
ExtCore (HashSet)       : 2650.075200 (ms)
ImmutableHashSet        : 2605.724400 (ms)
ImmutableSortedSet      : 3286.200300 (ms)

Create Random Set<int64> (n=1000000)
FSharp.Core (Original)  : 3847.466900 (ms)
FSharp.Core (Optimized) : 3130.505200 (ms)
ExtCore (Patricia Trie) : 2870.415400 (ms)
ExtCore (HashSet)       : 2678.665600 (ms)
ImmutableHashSet        : 2719.816900 (ms)
ImmutableSortedSet      : 3675.364200 (ms)

Error: Garbage collector could not allocate 509224 bytes of memory for marksweep-block-info-sort.
The application was terminated by a signal: SIGHUP