StatisticsHelper: Fix lack of "garbage generated" data (zeros)

[dsmiley]

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StatisticsHelper: Remove attempts to "setDaemon" the stats polling thread And update memory status one final time in stopStatistics().

Closes #24

[mikemccand]

I'm a little confused on what the bug was here.

E.g. were you seeing all 0 for the GC statistics at the end of all benchmark runs? Because we were missing the final run call during stopStatistics?

[dsmiley]

I'm a little confused on what the bug was here.

E.g. were you seeing all 0 for the GC statistics at the end of all benchmark runs? Because we were missing the final run call during stopStatistics?

They will show as "N/A" because hasMemoryPools is false because some of the pool names were not correctly identified. I think there was a separate issue to which I have comments in the issue pertaining to setDaemon etc. and other aspects here. It's been many months for this part and I'm less sure of that.