23 Jun
2011
23 Jun
'11
9:32 a.m.
On Thu, Jun 23, 2011 at 3:27 PM, Jan-Willem Maessen
Yes, I'd still expect that; internal node churn with fat nodes exhausts heap more quickly than usual. If large nodes become the norm, cranking up GC nursery size might be in order.
It's great to see that fat nodes finally work well in GHC, though. When I first tried this in the 90's it was so bad (due to the extra level of indirection & write barrier problems) I gave up in frustration.
I just tested reducing the fanout to 8, which actually makes things slower. Johan