## Friday, September 23, 2011

### A bit of a problem

Once again, here is a plot of the actual garbage collection counts as a function of heap size:
and we mention that we want to be “beyond the knee” in the curve. So where is that “knee”?

The green line is the plot of `f(x) = 6100000/x`, or, to put it another way, the plot of `x × y = 6100000`. The knee in the curve ought to be where `x = y = √6100000 ≈ 2470`. But look at the chart! Just by eyeballing it, we can see that 2470 is nowhere near what anyone would call the knee.