On Tue, Jan 28, 2020 at 11:41 PM Han-Wen Nienhuys <hanw...@gmail.com> wrote: > Unfortunately, it looks like the adoption of the BDW GC library caused > a ~6x slowdown, causing an overall end-to-end slowdown of 50%. > > I was wondering if you folks would have tips to further tune GC for > wall-time speed, and if there additional diagnostics to see if we're > doing something extraordinarily silly.
For the record, I managed to solve this, by scaling up the heap more aggressively. See https://codereview.appspot.com/561390043/diff/557260051/lily/score-engraver.cc Ironically, this is the same problem scenario that led me to refactoring the GUILE GC in ~2002, in c8a1bdc460f892847d0fb3f1321cdeb305160bf8. -- Han-Wen Nienhuys - hanw...@gmail.com - http://www.xs4all.nl/~hanwen